This app assists in book production by calculating the exact number of paper reams needed for interior pages and covers. It also offers features to scan ISBNs for paper type information, calculate spine width, and generate price quotations.






34+ iOS apps & games curated and reviewed
Looking for free guho choi apps and games? 19 of our 34+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.8★ (33) | No | Yes | Jul 2026 | |
| 2 | Free | 4.2★ (6) | No | No | May 2026 | |
| 3 | Free | — | No | Yes | Jul 2026 | |
| 4 | Free | — | No | No | Jul 2026 | |
| 5 | Free | 5.0★ (1) | Yes | No | Jul 2026 | |
| 6 | Free | — | Yes | Yes | Jul 2026 | |
| 7 | Free | 5.0★ (1) | No | No | Jul 2026 | |
| 8 | Free | — | No | Yes | May 2026 |






This app assists in book production by calculating the exact number of paper reams needed for interior pages and covers. It also offers features to scan ISBNs for paper type information, calculate spine width, and generate price quotations.






This app helps you keep track of your face masks, including when to replace them and their usage history. It offers features like notifications, calendar integration, and barcode scanning for easy management. You can also rate your masks and view statistics on their lifespan.










Access real-time foreign exchange rates from major banks with this currency converter and calculator. Compare rates across different banks, track historical trends, and perform quick conversions with the built-in calculator. Customize your viewing experience with light/dark modes and dense view options.


Struggling to name your baby? This app helps you create unique, pleasant-sounding names with good meanings. It offers both Korean and Hanja name suggestions based on desired characters, gender, popularity, and pronunciation.


Access exclusive coupons and discounts directly from your mobile device. Manage your orders, shipping information, and shopping cart with ease. Receive important store notifications and connect with social media channels.






This app allows for immediate audio recording, even in emergencies, with customizable privacy settings to conceal the recording screen. It offers seamless integration with Apple Watch for discreet and quick starts, stops, and file management, all stored locally for enhanced security.




Discover and utilize discount coupons from local businesses directly on your phone. Easily find deals, view store locations, save favorites, and get alerted to new promotions for seamless redemption.






Learn bitwise operations and computer fundamentals through engaging gameplay. This game makes understanding core computing principles fun and accessible.










Access exclusive coupons and discounts optimized for mobile. Enjoy features like automatic login, order tracking, and managing your shopping cart. Receive store notifications and connect via social media.