Apple.B Members Profile 2026: Bio, Ages & Interesting Facts
Apple.B (애플비) was a five-member South Korean girl group formed by GH Entertainment. The group consisted of Yuji, Yurim, Sandy, Haeun and Hyunmin and officially debuted on August 1, 2017, with the single album “Woochuchu” (우쭈쭈).
Although Apple.B’s career was brief, the group is notable because three of its members-Yuji, Yurim and Haeun-later returned under the same agency as 3YE in 2019. Sandy and Hyunmin did not join that second group.
This Apple.B members profile covers the group’s original lineup, debut, music, individual member backgrounds, The Unit connection, disbandment, and what happened to the members afterward where reliable public information is available.
Apple.B Quick Facts
| Fact | Information |
|---|---|
| Group Name | Apple.B |
| Korean Name | 애플비 |
| Debut Date | August 1, 2017 |
| Agency | GH Entertainment |
| Origin | South Korea |
| Genre | Dance / Pop |
| Number of Members at Debut | 5 |
| Active Years | 2017–2018 |
| Fandom Name | Not officially confirmed |
| Official Colors | Not officially confirmed |
| Debut Single | Woochuchu |
| Current Status | Disbanded |
Apple.B’s debut date and five-member lineup are supported by contemporary debut coverage and music databases. Bugs lists Woochuchu as a dance/pop single released on August 1, 2017 by GH Entertainment.
Table of Contents
Who Was Apple.B?
Apple.B was a five-member girl group launched by GH Entertainment in 2017. The members were Yuji, Yurim, Sandy, Haeun and Hyunmin. Before the official debut, GH Entertainment introduced the members through individual teasers and promoted the group ahead of its August 1 release.
The group’s debut music was positioned around a bright, youthful dance-pop sound. Contemporary Korean media described “Woochuchu” as a dance song expressing the straightforward feelings of girls toward someone they liked.
Apple.B also made efforts to meet audiences directly. Before and shortly after debut, the members participated in school performances, fan events and street-style promotional performances. TenAsia reported that the group held performances around the Seoul metropolitan area before debut and a mini fan meeting shortly before their official release.
The group’s recorded discography was extremely small. Its known official release was the digital single “Woochuchu,” which contained the title song and instrumental version.
Apple.B Members
The original Apple.B lineup contained five members:
- Yuji
- Yurim
- Sandy
- Haeun
- Hyunmin
Because Apple.B is no longer active, all five should be regarded as former Apple.B members rather than current members in 2026.
Yuji Profile
Stage Name: Yuji (유지)
Birth Name: Son Yu Ji (손유지)
Date of Birth: November 25, 1998
Age in September 2026: 27
Zodiac Sign: Sagittarius
Nationality: South Korean
Height: 160 cm
Blood Type: O
Apple.B Role: Leader and rapper
Later Group: 3YE
Yuji was one of Apple.B’s central members and served as the group’s leader. Her pre-debut history was more extensive than that of many newly debuted idols of the same period. She had previously appeared on K-Pop Star 2 and participated in KARA Project, a reality program connected with the search for a new KARA member.
She officially debuted with Apple.B on August 1, 2017, performing alongside Yurim, Sandy, Haeun and Hyunmin. Contemporary coverage introduced Yuji as one of the group’s five members before the release of “Woochuchu.”
Yuji also participated in the KBS survival program The Unit during the Apple.B era. Soompi’s contestant listing identifies Yuji as an Apple.B participant.
Her Apple.B career eventually became the first chapter of a longer association with GH Entertainment. After Apple.B’s disbandment, Yuji remained with Yurim and Haeun and later debuted again as a member of 3YE in May 2019.
As 3YE’s leader, Yuji was publicly listed with vocal, dance and rap responsibilities. She was also part of the seasonal project group Triple7, which brought together members of 3YE and B.I.G.
Kpopping currently lists Yuji’s MBTI as INTJ and blood type as O, while KProfiles also lists O blood type and the same November 25, 1998 birth date.
Her later career is particularly relevant when looking back at Apple.B: the group did not represent the end of Yuji’s idol career. Instead, she continued working with two former Apple.B members through 3YE.
Yurim Profile
Stage Name: Yurim (유림)
Birth Name: Park Yu-rim (박유림)
Date of Birth: April 13, 1998
Age in September 2026: 28
Zodiac Sign: Aries
Nationality: South Korean
Height: 165 cm
Blood Type: O
MBTI: INFJ
Apple.B Role: Vocalist / visual
Yurim was another member who remained connected to GH Entertainment after Apple.B. She debuted with the group on August 1, 2017 and later became one of the three former Apple.B members selected for the company’s next girl group project.
Kpopping lists her full name as Park Yu-rim and gives her birth date as April 13, 1998. It also lists her as a former Apple.B member and later member of 3YE and Triple7.
Yurim’s Apple.B role is generally described as a vocalist, with later 3YE profiles also identifying her with the group’s visual role. Because position labels can vary between databases, this article avoids treating every unofficial position label as an agency-confirmed designation.
After Apple.B ended, Yurim did not leave the idol scene immediately. She returned alongside Yuji and Haeun in 3YE, which debuted on May 21, 2019 with “DMT (Do Ma Thang).”
She also participated in the Triple7 project with the other 3YE members and members of B.I.G. Triple7 released the digital single “Presente” in August 2021.
3YE eventually ended its activities after the members’ contracts with GH Entertainment expired in 2024. This means Yurim’s later career is best understood separately from Apple.B, even though Apple.B was the starting point for her professional group career.
Sandy Profile
Stage Name: Sandy (샌디)
Birth Name: Sandra Victoria Seo / Seo Min-kyung
Date of Birth: May 3, 1998
Age in September 2026: 28
Birthplace: Vancouver, Canada
Nationality: Korean-Canadian
Height: 162 cm
Apple.B Role: Main rapper
Other Career: The Unit contestant
Sandy was the member of Apple.B with a particularly international background. Kpopping identifies her as Sandra Victoria Seo and lists Vancouver, Canada, as her birthplace. It also identifies her Korean name as Seo Min-kyung.
She debuted with Apple.B in August 2017 and was identified as the group’s main rapper in profile databases.
Sandy also became one of Apple.B’s members associated with The Unit, the KBS idol rebooting/survival program. Soompi’s contemporary contestant list included both Sandy and Yuji among the Apple.B participants.
Her participation in the program affected the group’s activities. Later reporting and profile documentation state that Sandy experienced exhaustion and was hospitalized during this period before returning to Apple.B activities in January 2018.
Sandy subsequently left the group and GH Entertainment in 2018. The exact circumstances behind her departure are not sufficiently documented in reliable public sources, so it would be inappropriate to assign a private reason to her decision.
Unlike Yuji, Yurim and Haeun, Sandy did not join 3YE. Her publicly documented entertainment activity after Apple.B is limited compared with the three members who continued under GH Entertainment. Kpopping currently describes her as a former/retired singer.
Haeun Profile
Stage Name: Haeun (하은)
Birth Name: Yoon Ha-eun (윤하은)
Date of Birth: March 12, 1999
Age in September 2026: 27
Zodiac Sign: Pisces
Nationality: South Korean
Height: Approximately 163–164 cm in profile databases
Blood Type: A
MBTI: ESFP
Apple.B Role: Lead vocalist
Later Group: 3YE
Haeun was the youngest member of Apple.B’s original lineup and later became one of the three members who re-debuted as 3YE.
Kpopping lists her birth date as March 12, 1999, with blood type A and MBTI ESFP. It lists her height as 163 cm, while KProfiles has historically listed 164 cm. Because the height figures are inconsistent and there is no current official source confirming the measurement, the figure should be treated cautiously rather than presented as an absolute fact.
Haeun was also connected to The Unit during Apple.B’s career. Profile sources state that she auditioned for the program but did not pass the audition stage.
Her career changed substantially after Apple.B. Together with Yuji and Yurim, she became part of 3YE, which debuted in 2019 with “DMT (Do Ma Thang).” In 3YE, Haeun was associated with rap, dance and vocal responsibilities and was identified as the maknae.
Haeun also participated in the co-ed project group Triple7 with fellow 3YE members and B.I.G members.
Her Apple.B period is therefore important when tracing the development of her career. Although the original group lasted only a short time, it provided the foundation for her later activities with 3YE.
Hyunmin
Stage Name: Hyunmin (현민)
Birth Name: Park Hyun-min (박현민)
Date of Birth: October 14, 2001
Age in September 2026: 24
Birthplace: Seo-gu, Incheon, South Korea
Zodiac Sign: Libra
Height: 170 cm
Blood Type: A
Apple.B Role: Main vocalist and maknae
Hyunmin was the youngest member of Apple.B and served as the group’s main vocalist according to available profile sources. Kpopping lists her birth date as October 14, 2001, and identifies Seo-gu, Incheon, as her birthplace.
She was introduced as Apple.B’s final member during the group’s pre-debut teaser campaign in July 2017. Soompi reported on July 28 that GH Entertainment had revealed Hyunmin as the fifth member.
Hyunmin also appears in contemporary reporting surrounding an unfortunate incident at Apple.B’s dormitory. On August 23, 2017, a fire began after an air-conditioning unit caught fire. Soompi reported that Hyunmin and Yurim were the two members in the dorm at the time and that neither was injured.
The incident did not end the group’s activities. GH Entertainment said at the time that the group would continue its schedule, although the members temporarily could not stay in the dorm because of smoke damage and fumes.
Hyunmin later left GH Entertainment and did not join 3YE. Available sources do not provide a sufficiently reliable, official explanation for the exact circumstances surrounding her departure. Kpopping currently lists her as a former Apple.B member whose entertainment activities have largely remained undocumented publicly.
Apple.B Formation and Pre-Debut Period
GH Entertainment began publicly introducing Apple.B in 2017. The group was prepared as a five-member girl group, with individual member teasers released ahead of the debut. Soompi’s July 2017 coverage identified Yuji, Yurim, Sandy, Haeun and Hyunmin as the five members.
The pre-debut campaign also involved direct audience interaction. TenAsia reported that the group performed at schools in the Seoul metropolitan area before debut and held a mini fan meeting shortly before their first release.
This early promotional approach gave Apple.B an opportunity to perform before audiences even before the official single arrived.
Apple.B Official Debut
Apple.B officially debuted on August 1, 2017.
Their debut release was the single “Woochuchu” (우쭈쭈). Korean music service Bugs classifies the release as a dance/pop single from GH Entertainment, released on August 1, 2017, with a total running time of 6 minutes and 44 seconds.
The release contained two tracks:
- Woochuchu
- Woochuchu (Inst.)
Kpopping likewise identifies “Woochuchu” as Apple.B’s debut single and lists the two-track release.
Contemporary eDaily coverage described the title track as a youthful dance song centered on an honest, playful confession toward someone the members liked.
The group performed its first debut stage on SBS MTV’s The Show on the same day as the release.
Apple.B’s Early Promotions
Apple.B’s first months involved several forms of direct promotion.
The group performed at public locations in Seoul and participated in fan-focused activities. A Sports Donga report from August 2017 documented a guerrilla “wing-car” performance in Daehangno and Myeongdong, where the members performed “Woochuchu” as well as covers of Red Velvet’s “Red Flavor” and BLACKPINK’s “As If It’s Your Last.”
TenAsia also reported that the group used Naver V Live and held fan-facing activities shortly after debut.
The group’s early promotional identity was therefore closely tied to live interaction and a bright performance concept rather than a large discography.
Apple.B and The Unit
One of the most notable parts of Apple.B’s short history was the participation of its members in The Unit.
Soompi’s contemporary contestant list identified Sandy and Yuji as Apple.B contestants.
Other profile records also state that Haeun auditioned but did not pass the audition stage.
Sandy’s participation became particularly significant because she later experienced exhaustion and hospitalization before returning to Apple.B activities in January 2018.
The Unit did not ultimately result in a permanent Apple.B expansion or a new group career for these members.
Apple.B Dormitory Fire
On August 23, 2017, Apple.B experienced a fire-related accident at its dormitory.
Soompi reported that the fire began when an air-conditioning unit caught fire. At that moment, Yurim and Hyunmin were in the dormitory. Their manager responded to the incident, and both members were taken out safely. No injuries were reported.
GH Entertainment stated that the incident would not affect Apple.B’s scheduled activities, although the members temporarily returned to their respective homes because of smoke damage and fumes.
The event remains one of the few extensively documented incidents from Apple.B’s short promotional period.
Apple.B’s Disbandment
Apple.B’s active period was short. The group is generally documented as having disbanded in 2018. Kpopping lists the group’s active years as 2017–2018 and states that Sandy and Hyunmin left GH Entertainment, after which Yuji, Yurim and Haeun later re-debuted as 3YE.
The exact public chronology of the final Apple.B disbandment announcement is less clear than the debut chronology. Contemporary and retrospective sources agree on the broad outcome-Apple.B ceased activities in 2018 and Sandy and Hyunmin departed, while the remaining three eventually formed 3YE-but the surviving documentation does not provide a detailed official disbandment statement explaining every step.
For that reason, claims about an exact private reason for the disbandment should not be treated as confirmed.
What Happened to the Apple.B Members?
The five members took different paths after Apple.B.
| Member | Later documented activity |
|---|---|
| Yuji | Re-debuted in 3YE; later participated in Triple7 |
| Yurim | Re-debuted in 3YE; later participated in Triple7 |
| Haeun | Re-debuted in 3YE; later participated in Triple7 |
| Sandy | Left Apple.B/GH Entertainment; no comparable later group debut publicly documented |
| Hyunmin | Left Apple.B/GH Entertainment; no comparable later group debut publicly documented |
Yuji, Yurim and Haeun became the lineup of 3YE, which debuted on May 21, 2019 with “DMT (Do Ma Thang).”
This makes Apple.B an important predecessor in the history of 3YE.
Apple.B and 3YE: The Connection
The relationship between the two groups is straightforward:
Apple.B → Yuji, Yurim, Haeun → 3YE
All three 3YE members had previously been Apple.B members.
3YE debuted in 2019 with “DMT,” followed by releases including “OOMM,” “Queen,” “Yessir,” “Stalker” and later material.
The group eventually ended its activities after its GH Entertainment contracts expired in 2024. Sources differ slightly on whether the public announcement is dated November 14 or November 15, 2024, but both agree that the members announced the end of their GH Entertainment contracts and the conclusion of 3YE’s group activities.
Thus, as of 2026, neither Apple.B nor 3YE is an active group.
Apple.B Discography
Apple.B’s officially documented discography is very small.
Single Album: Woochuchu
| Release | Date | Type | Tracks |
|---|---|---|---|
| Woochuchu | August 1, 2017 | Single | “Woochuchu,” “Woochuchu (Inst.)” |
Bugs identifies “Woochuchu” as the title track and the release as a GH Entertainment dance/pop single.
Kpopping independently lists the same two-track release and August 1, 2017 release date.
“Woochuchu”
The song represented Apple.B’s youthful debut image. Contemporary reporting described it as a dance track built around a direct and playful confession, while the production credits included composers associated with Korean pop and drama OST work.
There is no verified evidence of an Apple.B studio album or a second official group single. Therefore, this profile does not add releases merely because some databases may list planned or unreleased projects.
Apple.B’s Music Style
Apple.B’s recorded material points toward a bright dance-pop sound rather than the darker performance style later associated with 3YE.
“Woochuchu” was promoted as a youthful song with an upbeat performance and a playful romantic theme.
The contrast with 3YE is particularly interesting historically. When Yuji, Yurim and Haeun returned as 3YE, their music and stage presentation became more performance-driven and forceful.
That evolution should not be treated as a direct statement that the members personally changed their artistic preferences, however. Concept and production decisions were also shaped by the agency and the projects themselves.
Awards and Achievements
Because Apple.B had a short promotional period and released only one official single, there is no extensive awards record to document.
| Year | Achievement | Result |
|---|---|---|
| 2017 | Official debut with “Woochuchu” | Debuted August 1 |
| 2017 | The Unit participation | Sandy and Yuji participated; Haeun auditioned |
| 2017 | Public/fan promotional performances | Documented in contemporary Korean media |
| 2018 | Apple.B activities ended | Group subsequently documented as disbanded |
It would be misleading to attach major chart or award claims to Apple.B without stronger supporting evidence.
Tours and Concerts
Apple.B did not have a documented world tour or major concert tour.
The group did participate in promotional performances and fan-facing events. Contemporary reporting documented a mini fan meeting before debut and a public “wing-car” performance in Seoul after debut.
Documented Events
| Period | Event |
|---|---|
| July 2017 | Pre-debut mini fan meeting |
| August 2017 | Debut promotions for “Woochuchu” |
| August 2017 | Seoul wing-car/guerrilla performance |
| 2017–2018 | The Unit related activities involving members |
No reliable evidence supports describing these activities as a formal Apple.B world tour.
Brand Endorsements and Ambassadorships
No major long-term brand ambassador appointment for Apple.B could be reliably established from the sources reviewed.
The group participated in promotional and fan activities, but an event appearance or promotional activity should not automatically be described as an endorsement.
Verified major ambassador partnerships: Not publicly available.
Apple.B Social Media Presence
Apple.B’s original social accounts were used during the group’s active period, including official social activity before and after debut. Contemporary records document GH Entertainment’s official social-media promotion of the group.
Because the group is defunct, readers should be cautious about accounts using the Apple.B name today.
| Platform | 2026 Status |
|---|---|
| Historical/official account existed; current active status not reliably confirmed | |
| X / Twitter | Historical official account documented |
| YouTube | Historical group material exists |
| Weverse | Not publicly available |
| Official Website | No active official Apple.B site verified |
An old account should not automatically be interpreted as evidence that Apple.B is currently active.
Revenue Sources
Apple.B’s exact earnings are not publicly available.
As with most idol groups, potential revenue categories during the group’s active period could have included:
- Music sales
- Digital streaming
- Public performances
- Fan events
- Merchandise
- Advertising or promotional work, if contracted
However, there is no reliable public financial disclosure showing how much Apple.B or any individual member earned.
Apple.B members’ exact net worth is not publicly available.
Relationships and Personal Life
There is no sufficiently reliable public information establishing current romantic relationships for the former Apple.B members.
Fan speculation and social-media rumors are not treated as evidence in this profile.
There is no publicly confirmed relationship information that should be presented as a factual Apple.B member profile detail.
Likewise, detailed information about private family circumstances is not necessary to understand the group’s career and is not included unless reliably documented.
Interesting Facts About Apple.B
- Apple.B officially debuted on August 1, 2017.
- The group originally had five members.
- The five members were Yuji, Yurim, Sandy, Haeun and Hyunmin.
- Apple.B was managed by GH Entertainment.
- Their debut single was “Woochuchu.”
- The Woochuchu release contained two tracks, including an instrumental version.
- The group performed its first debut stage on SBS MTV’s The Show.
- Apple.B held a mini fan meeting before its official debut.
- The members performed public promotional stages in Seoul after debut.
- Yuji had previously appeared on K-Pop Star 2.
- Yuji also participated in KARA Project.
- Sandy participated in The Unit.
- Yuji also appeared as an Apple.B contestant on The Unit.
- Haeun auditioned for The Unit but did not pass the audition stage.
- Apple.B’s dormitory experienced a fire-related accident in August 2017.
Frequently Asked Questions About Apple.B
Who were the members of Apple.B?
Apple.B’s five original members were Yuji, Yurim, Sandy, Haeun and Hyunmin.
When did Apple.B debut?
Apple.B debuted on August 1, 2017, with the single “Woochuchu.”
What agency was Apple.B under?
Apple.B was under GH Entertainment.
What was Apple.B’s debut song?
The group’s debut song was “Woochuchu” (우쭈쭈).
How many members did Apple.B have?
Apple.B had five members at debut: Yuji, Yurim, Sandy, Haeun and Hyunmin.
Is Apple.B still active in 2026?
No. Apple.B is a disbanded group and is generally documented as having ended its activities in 2018.
What happened to Apple.B?
The group ended after a short career. Sandy and Hyunmin left GH Entertainment, while Yuji, Yurim and Haeun later re-debuted together as 3YE.
Who was the leader of Apple.B?
Yuji was the group’s leader.
Who was the youngest Apple.B member?
Hyunmin, born October 14, 2001, was the youngest member of the original lineup.
Who was the oldest Apple.B member?
Yurim, born April 13, 1998, was the oldest member by birth date.
Which Apple.B members joined 3YE?
Yuji, Yurim and Haeun later debuted together in 3YE.
Did Sandy join 3YE?
No. 3YE consisted of Yuji, Yurim and Haeun. Sandy was not part of the group.
Did Hyunmin join 3YE?
No. Hyunmin did not join 3YE. The group consisted of Yuji, Yurim and Haeun.
Did Apple.B release an album?
Apple.B’s documented discography consists of the single Woochuchu, containing the title track and instrumental version.
Did Apple.B participate in The Unit?
Yes. Sandy and Yuji participated in The Unit, while Haeun is documented as having auditioned but not passed the audition stage.
What happened during Apple.B’s dorm fire?
A fire started in the group’s dormitory on August 23, 2017 after an air-conditioning unit caught fire. Yurim and Hyunmin were inside but were safely evacuated and no injuries were reported.
Did Apple.B have an official fandom name?
A reliable official fandom name could not be verified.
What is Apple.B’s official color?
An officially established Apple.B color could not be reliably verified.
Are Apple.B members still idols?
Their later careers differ. Yuji, Yurim and Haeun continued with 3YE, while publicly documented post-Apple.B activity for Sandy and Hyunmin is much more limited. 3YE itself ended in 2024.
Conclusion
Apple.B had a short career, but its place in K-pop history is more interesting than its limited discography might suggest. The five-member group debuted under GH Entertainment in August 2017 with “Woochuchu,” built its early identity around bright dance-pop and direct fan interaction, and later became associated with The Unit through members Yuji and Sandy.
The group’s most lasting legacy came through Yuji, Yurim and Haeun, who later returned as the three-member group 3YE. Their second group gave the three former Apple.B members a considerably longer run in the industry.
As of 2026, Apple.B is a historical, disbanded K-pop group, not an active five-member act. Its story is best understood as an early chapter in the careers of five performers whose paths diverged after the group’s brief 2017–2018 run.
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