kuStudy vs BOOMBACK 붐백
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
kuStudy
Find available study spaces and empty seats in university libraries in real-time. Access information quickly through widgets on your phone, watch, or even spatial computing devices. Seamlessly share status updates and navigate without interrupting your workflow.
- Real-time seat availability
- Home screen and lock screen widgets
- Apple Watch complications
- Handoff support across devices
- Split View and Slide Over for iPad
- Spatial computing vision support
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Looking for a place to go between classes? Searching for empty seats in libraries? kuStudy is an unofficial app that provides real time reading room seats information of Seoul Campus of KU. Have a quick glance from iOS app, Today widget or Apple Watch, and you can easily decide where to go. This app contains no ads or promotion - it just shows you what you need. That's all. iPhone: • Concise information: just see what you need. • Home screen & lock screen widgets, also supporting StandBy when locked. • Use Handoff to continue view what you are looking on your other Apple devices. • Share reading room status using text or images. iPad: • Use Split View and Slide Over to view information without disrupting your current work. • Use hardware keyboard shortcuts to quickly navigate through app. Home screen & lock screen widget: • Quick access from anywhere without launching the app. Vision: • Check the reading room status in spatial computing. • Familiar interface from iPad app. Apple Watch: • Glance what you need right on your wrist. • Watch face complications for even faster glance. • Use Handoff to continue view what you are looking on your iPhone. This app doesn't use any third party analytics to collect your data. Study hard! :)
BOOMBACK 붐백
This service assists MapleStory players with equipment enhancement (Star Force). Submit your enhancement requests, and monitor the progress and outcomes in real-time through the app. It offers 24-hour focused enhancement with guaranteed success to your target level.
- Equipment enhancement requests
- Real-time progress and result tracking
- 24-hour focused enhancement
- Guaranteed success to target level
- Transparent cost estimates
- 1:1 communication with blacksmith
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BOOMBACK은 메이플스토리 장비 강화(스타포스) 서비스입니다. 강화를 신청하고, 진행 과정과 결과를 앱에서 실시간으로 확인하세요. ■ 앱에서 할 수 있는 것 · 강화할 장비와 목표 성수 신청 · 진행 상황과 결과 실시간 확인 · BOOMBACK 대장장이와 1:1 소통 ■ BOOMBACK의 특징 · 24시간 집중 강화 — 목표 성수까지 확정 성공 · 기대값 기반의 투명한 견적 · 단계별 진행 내역 기록 ■ 안내 · BOOMBACK은 메이플스토리 이용자를 위한 독립 서비스이며, 넥슨㈜ 및 메이플스토리와 공식 제휴 관계가 없습니다.
Screenshots
Verdict
The clearest difference is in-app purchases: BOOMBACK 붐백 at none against kuStudy's 10. BOOMBACK 붐백 also leads on update cadence (every 9 days vs every 4 weeks). kuStudy's advantage is device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. kuStudy sells 10 in-app purchases, starting at $2.99 per 7 days. BOOMBACK 붐백 asks for nothing beyond the download.
kuStudy ships an update every 4 weeks, BOOMBACK 붐백 every 9 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | kuStudy | BOOMBACK 붐백 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 4 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch, Vision Pro — better | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Bummo.Dev | JEONGDAE PARK |
In-app purchases
kuStudy
- Weekly Subscription$2.997 Days
- Monthly Subscription$4.991 Month
- Quarterly Subscription$9.993 Months
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- Semiannual Subscription$12.996 Months
- Yearly Subscription$14.991 Year
- Gratitude$0.99
- Chocolate$1.99
- Coffee$2.99
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- Lunch$4.99
- Special Thanks$8.99
BOOMBACK 붐백
No in-app purchases









