# Hello BT21 — user reviews > 54 indexed App Store user reviews of Hello BT21 by Kakao Games Corp., rated 4.82/5 from 1,350 ratings. - Source: https://appshunter.io/ios/app/hello-bt21/id1515454350/reviews - App overview in markdown: https://appshunter.io/ios/app/hello-bt21/id1515454350.md - Rating breakdown: 5★ 1,225 · 4★ 67 · 3★ 27 · 2★ 7 · 1★ 24 ## What do users think of Hello BT21? Overall sentiment: mixed **Pros** - ❤️ Cute and adorable BT21 characters - 🎮 Fun and entertaining gameplay - 💜 Loyal and supportive ARMY fanbase **Cons** - 🐛 Frequent crashes and stability issues - ⌛ Slow loading times and performance problems - 🔍 Lack of language options and translation **Commonly reported bugs** - Game data loss and account resets - Inability to log in with existing accounts - Constant errors and crashes **Most requested features** - Add language options and translations - Improve stability and reduce crashes - Optimize loading times and performance ## Newest reviews (14 of 54) ### 3/5 — I love it BUT… *2023-09-08* I truly love this game. It’s entertaining to pass time and BT21 friends are absolutely adorable. My only issue and it’s a big one is that after a week it ALWAYS crashes and won’t launch. I’ve removed and downloaded 3x now and don’t think I’d do it a 4th time as much as I love it. Hopefully this gets fixed 💜 ### 3/5 — Will not open ): *2023-04-18* Have to delete and redownload every time I want to play because the app just won’t open ): this has been happening since the latest bug fix !! ### 4/5 — Game overall *2022-10-20, version 1.4.0* Hello, I recently downloaded this game and so far I LOVE it ❤️❤️❤️If only I had the option I would have given it a 4.5 star review; however, I noticed that there is some English mistakes when starting a phrase. Hope you can fix it ! Thank you for this! ### 4/5 — Help pls *2022-06-08, version 1.4.0* Love the game, so addicting and so cute but lately, the game just won’t load and when it does I takes forever. Is it just me? Can anyone shed some insight how I can fix this pls? Thank you ### 5/5 — Read please *2022-04-10, version 1.4.0* So ima really live bts so i got this game and Its pretty good its and cute but I can’t find settings i want my mom to play it to but i need to change it to Spanish and this time i want to log in but I don’t now how i feel like i have to restart everything and the English writing (translation) has some errors so can you please update it it needs different languages settings good translation please update sorry thanks 🙏 ### 4/5 — Language *2022-03-04, version 1.3.2* The game is very well designed. I like you if it is thematic but I would like it to be in different languages ​​so that people find it easier ### 5/5 — do goodddd😭😭😭😍😍😍😍 *2022-02-26, version 1.3.2* literally so fun ### 5/5 — ARMYTAN21 *2022-01-08, version 1.3.2* THEY'RE SO CUTE I DIED PLAYINGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG ### 3/5 — Stop working :/ *2021-12-18, version 1.3.2* Okay at first this app was working and it usually doesn’t take that long to load but now it does and i’m on level 7 something but this app is good ngl i love it but at the same time i hate it now because of its taking forever to load. ### 3/5 — Constant crashing *2021-10-15, version 1.3.1* I’ve been playing the game for a few months & really love it. I put time into it every day. But there is no way to contact a help team or even a twt account to let them know the game is crashing with an error message. Based off reading some other reviews here, I tried uninstalling & reinstalling the app, which works for a few days, then it’s back to crashing. I really really want to keep playing but it doesn’t look like there’s much developer feedback. It’s an addictive cute game with fun mechanics & characters, but cmon :/ ### 5/5 — I’ve lost my best friend to this game *2021-09-17, version 1.3.1* She was so loving to me… she meant so much…. But over the years… she’s lost herself to bt21 bubble pop……… I am sobbing real tears…… all I have to say to this game is… thank you! I hated her ### 5/5 — Guapaguapo *2021-08-29, version 1.3.1* It's nice game ### 5/5 — Best matching game *2021-04-12, version 1.3.1* So enjoyable ### 5/5 — Fix my app please *2021-03-17, version 1.3.0* Love this game, however the game continue crushing and saying (an unknown error occurred. Please try again).. not understanding why it stopped working for me ## Most critical reviews (10 lowest-rated) ### 1/5 — Stopped Working *2022-09-19, version 1.4.0* I loves this game and now it won’t start. Just keeps spinning circle in the beginning with the characters and it’s impossible to get support, I’m in the US. ### 1/5 — Please restore game data! *2022-04-20, version 1.4.0* I’ve been playing this ever since it came out and have logged in with kakao. I’ve leveled up so many times and all of a sudden it kept on saying “error” for the longest time, now I go back and it says I have to log in with Facebook? Ok fine I did that but now I’m back to square one?? Seriously?? After all those times spent leveling up I have to start all over? PLEASE FIX THIS ### 1/5 — 게임데이터 다 날라감 *2022-02-26, version 1.3.2* 아니 분명 카카오로 로그인해뒀던거 같은데 갑자기 데이터 다 날아갔어요; 엊그제까지만 해도 게임 잘 하고 있었는데 오늘 방금 접속하려니까 오류 어쩌고 하는 창 뜨더니; 게스트로그인/카카오로그인 선택하라고 떠서 카카오로 들어갔는데 게임 다 깨놓은거 초기화됨... 그래서 로그아웃하고 게스트로그인으로 들어가보니까 완전 처음 튜토리얼 뜸..... 계정 복구 좀 해주세요 엄청 많이 깼는데 이게 뭐에요? 한꺼번에 스토리 진행하려고 열쇠 진짜 많이 모았는데;;;; 진짜 너무 화나요 ### 1/5 — Alright that’s it PLEASE CHANGE! *2021-04-09, version 1.3.1* JUST MAKE THIS GAME FOR EVERY AGE OR I WILL GET MORE CRANKIER! ### 1/5 — Complaint *2021-03-25, version 1.3.1* It say it for 4 year olds and it told me no available users under 13 what is this ### 1/5 — It keeps crashing *2021-03-04, version 1.3.0* The game is super cute and fun! I originally played the Korean version and then was cut off. Unfortunately I can’t log back in with my Kakao talk username, and lost all the progress. I was okay with that, but now until the game won’t even open. It is giving me an error 529. And asks me to contact customer service, except that customer service is in Korean. Please fix the problem! I’ve spent quite a bit of money in it already. And please add a “contact us” page in other languages. ### 1/5 — I never got to play cuz of my age *2021-02-11, version 1.3.0* I am nine. I am not thirteen. I am not a teen. So i cannot play the game. I am depressed and sad now. Pls change this. PLS!!!!!!!!! ### 1/5 — English translation added but lost progress *2021-01-26, version 1.2.2* The game finally released English transactions but guess what? I had my account linked to Kakao Talk and now that the app is region based (and forcing Facebook / Apple sign-in) I lost all of my progress and all the characters I previously collected. Waste of time and money I spent. Please give us the option to log in with our Kakao Talk account for the USA version of the app. ### 2/5 — Cute game BUT Glitches *2023-05-06* I love everything BT21. This game has cut animation and overall is fun and adorable. BUT after about two days of playing, the app glitched and wont even load! I cant get past the “Kakao” screen, that comes up then the app just blanks out and sends me to my phone’s home screen. Please fix!!!! ### 2/5 — I really enjoy playing this game, when it works *2021-03-04, version 1.3.0* I downloaded this game a week ago and have really enjoyed playing it, that is when it works. After playing for 2 days I got an “error” message that told me to report of it keeps happening but there is no way to report it. I ended up deleting the app and reinstalling it. Another 2 days went by then the same “error” notification appeared. So I repeated to process of deleting and reinstalling. I have had to do that over 4 times. As I said in the beginning I really enjoy this game but it errors out all the time and becoming more hassle than its honestly worth. ## Most praised reviews (10 highest-rated) ### 5/5 — Joonie Tube *2023-08-26* Hello Army or Universtar ! I just wanna write this review to say that I really appreciate your effort into this game and I really love it. I see no problems at all. I like it that some levels are hard and the way the BT21 member’s dialogues and their designs , also their style is really cute and just makes me want to burst in tears. T-T I really love this game and I don’t want this game to be deleted. I also love the fact that you also have a story mode and some locations even BT21 IN COSTUMES OR AT21 !! I SUPER SUPER DUPER LOVE THIS GAME !! These are not opinions and just true facts that this game is really cute >.< , I even love the events. Hope to see some more upcoming events and love this game. Peace out ✌️ - Love , Joonie Tube 🧡 ### 5/5 — Waiting… *2023-06-15* Please REMOVE the opening scene. I don’t want to wait 30 seconds every time I try to play the game 🙃 ### 5/5 — Fun Perfect game for army *2022-06-28, version 1.4.0* I love this game it has the game that I play nonstop and it’s super fun and addictive the graphics amazing being able to play your favorite BT 21 characters it is blast great super fun a perfect game to play if you’re army you’ll love this game I know I do ### 5/5 — Army💜 *2022-06-09, version 1.4.0* Love this game so much. Army here to support anything with BTS in in 😅 ### 5/5 — Amazing! So fun *2022-06-05, version 1.4.0* I love this game sooooo much! Whenever I’m bored it’s my go-to! I love BTS and being able to play with all the BT21s is so cute including van🤣 ### 5/5 — LOVE IT!!! *2022-06-04, version 1.4.0* It keeps me smiling 🥰 ### 5/5 — BTS *2022-06-02, version 1.4.0* I L❤️VE BTS! ### 5/5 — So cute *2022-05-10, version 1.4.0* I love this game the Bt21 characters are so cute. The vibe of the characters reminds me so of the Bts boys. ### 5/5 — Cool game *2022-05-02, version 1.4.0* When I just try it out, I never stop playing it since ### 5/5 — Love BTS *2022-04-23, version 1.4.0* Everything they touch is magic! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*