An intuitive notebook app featuring an infinite canvas for note-taking and idea organization. It allows for seamless creation and management of notes without page limitations.

249+ iOS apps & games curated and reviewed
The best jumpei adachi apps and games on iPhone average 4.5★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.6★ (93) | Yes | Yes | Aug 2026 | |
| 2 | Free | 3.7★ (3) | No | No | Aug 2026 | |
| 3 | Free | 4.7★ (321) | No | Yes | Aug 2026 | |
| 4 | Free | 4.7★ (176) | Yes | Yes | Aug 2026 | |
| 5 | Free was $1.99 | 4.9★ (14) | No | No | Aug 2026 | |
| 6 | Free | 4.5★ (36) | No | Yes | Aug 2026 | |
| 7 | Free | 4.5★ (10) | No | Yes | Aug 2026 | |
| 8 | Free | 5.0★ (1) | No | Yes | Aug 2026 |

An intuitive notebook app featuring an infinite canvas for note-taking and idea organization. It allows for seamless creation and management of notes without page limitations.

Transform your smartphone into a precise measuring tool. This utility app allows you to measure lengths and distances directly on your device's screen. Ideal for quick estimations and practical applications.


Practice reading musical rhythms from sheet music. This application provides a tool for musicians to hone their sight-reading skills with various rhythmic patterns.


Learn and practice abacus skills directly on your touchscreen. Generate custom problems to hone your abacus techniques, even with a physical abacus.


Easily compare two images side-by-side. This app allows you to slide between images to highlight differences or similarities. Perfect for visual analysis and detailed review.


This application provides a digital space for composing and notating music. It allows users to write down musical ideas and create scores directly on their devices. Ideal for musicians and composers, it offers a convenient way to manage musical compositions.


This browser extension displays furigana, Japanese phonetic guides, directly on webpages. It offers a free trial period for users to experience its functionality. All processing is done locally on your device for enhanced privacy.


This browser extension displays pinyin directly on webpages. It processes all data locally on your device, ensuring your privacy. Enjoy a more accessible reading experience for Chinese content.


This application is designed to assist users in memorizing piano chords. It provides a focused learning experience for musicians looking to improve their chord recall.


Test your reflexes and timing by tapping to make a mochi character jump between moving platforms. Climb higher, collect stars, and unlock new characters and colors in this addictive arcade game.


Swing from a rope and launch yourself towards the goal in this addictive physics-based game. Master precise timing to avoid obstacles and clear increasingly challenging levels. Collect crowns and trophies for extra rewards and enjoy daily new stages.


Guide a cute mochi character on an upward journey to catch cherry blossom petals and fulfill a dream. Avoid obstacles like clouds and bubbles while collecting adorable characters and aiming for high scores. Discover hidden items and unlock new characters as you ascend.


Control characters as they run and jump to overcome obstacles and earn points. Test your reflexes to see how long you can last without falling or touching hazards.


Control multiple characters simultaneously to make them jump over obstacles. Challenge yourself to see how long you can survive the increasingly difficult levels. Cooperate with friends or use all your fingers for maximum control.




Embark on a side-scrolling adventure with "Ringo" and "Ai" across seven worlds. Master precise jumping mechanics, including double jumps, to overcome challenges and aim for high scores. Compete globally on internet rankings and unlock powerful items.


Engage in a fast-paced jump game with action-packed levels. Utilize powerful characters, pets, and weapons to defeat enemies and bosses. Upgrade abilities to move faster and stronger through challenging stages.


Tap to jump over obstacles and break boxes for bonus points. Collect points to unlock new balls and customize your roads. Enjoy a simple yet engaging arcade experience.


Jump over numerous obstacles in this engaging game. Master tapping for short jumps and long taps for higher leaps to navigate the challenging levels. Compete against other players in this exciting arcade experience.


Control a ninja with simple one-tap jumps in an endless running game. Guide the ninja to avoid falling and keep the run going as long as possible. It's a straightforward arcade experience focused on timing and reflexes.