This medical app assists in calculating intravenous drip rates and timers. It allows users to input volume and time to determine the drip rate, or vice versa, with support for customizable infusion set values and Apple Watch integration.


250+ iOS apps & games curated and reviewed
The best nakajima ryoma apps and games on iPhone average 4.3★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 3.6★ (67) | No | Yes | Jul 2026 | |
| 2 | Free | — | No | Yes | Jun 2026 | |
| 3 | Free | — | Yes | No | May 2026 | |
| 4 | Free | 4.0★ (1) | No | No | May 2026 | |
| 5 | Free | 4.4★ (73) | No | Yes | Jul 2026 | |
| 6 | Free | 4.4★ (21) | Yes | No | Jul 2026 | |
| 7 | Free | 4.8★ (3.4K) | No | No | Jul 2026 | |
| 8 | Free | 4.6★ (12) | Yes | No | Jul 2026 |


This medical app assists in calculating intravenous drip rates and timers. It allows users to input volume and time to determine the drip rate, or vice versa, with support for customizable infusion set values and Apple Watch integration.














Discover hidden iPhone features and tips for iOS 8, from silent screenshots to reading messages without being marked as read. Learn battery-saving techniques and photo privacy methods. This guide offers over 200 tricks for all user levels.


Learn Japanese vocabulary and characters through bite-sized lessons and review tools. Access content via widgets, notifications, or the app itself, with features like native audio and progress tracking. Offers structured courses for beginners and JLPT levels.


Manage your device usage with timers and smart app blocking to enhance focus. Build self-control through interactive challenges and reaction training. Includes eye care features for healthier screen time.


This comprehensive language learning tool offers an extensive dictionary with over 175,000 entries and 58,000 example sentences. It includes advanced features like handwriting recognition, conjugation search, and a text reader, alongside flashcard study tools and JLPT-specific lists. Learn Japanese offline with this pocket-sized study companion.


This app analyzes your gut sounds to suggest personalized dietary and lifestyle changes for better gut health. Track your bowel movements and gut health activities to create a custom plan and monitor your progress with detailed reports.


This professional and beautifully designed calendar app offers comprehensive traditional Chinese calendar information, including lunar dates, solar terms, holidays, and auspicious days. It also provides intuitive event management tools, daily reminders, and notification widgets to help organize your life.


Learn to recognize and write Japanese Katakana and Hiragana characters through an educational game. It uses an intelligent algorithm to teach character combinations and track your progress, ensuring long-term retention. Ideal for beginners and those looking to maintain fluency.


This application offers a relaxing and interactive method for learning Japanese. It uses engaging games that connect words with images to reinforce meaning and provides opportunities to practice language mastery. Track your progress and test your knowledge with a summary and rating.


This app provides a dedicated Japanese keyboard for efficient typing and an integrated translator to bridge language gaps. Customize your typing experience with themes, background images, and sound feedback. Access translations and typing features across any application.


Create and edit augmented reality objects, including human bodies, by copying, cropping, or selecting from a library. Record videos of your AR creations in real-time. Features include object manipulation, animation control, and motion addition.


Earn and use points at various stores across Japan with this reward program. Discover Japanese culture and travel information, play minigames, and access exclusive coupons. Manage your digital point card and stay updated on local deals.


Boost concentration and manage your time effectively with a timer-based technique. This app helps you stay on track during study or work sessions, offering customizable timers and tools to review your progress and learn focus psychology.


Learn Japanese with native speaker audio and a speech studio to perfect your accent. This app focuses on essential words and phrases for everyday conversations, allowing you to learn at your own pace without formal lessons. It tracks your progress and immerses you in the sounds of the language for natural speaking.






This app provides curated horse racing predictions and insider information to help users profit from betting. It features expert picks, user reviews of prediction sites, and guidance for beginners to easily earn money from races. Turn your horse racing hobby into a profitable investment.


Easily broadcast your mobile screen, games, or any app live to a global audience. Connect with others, discover trending content, and watch past streams for free. Simple to use with no hidden costs for streaming or viewing.