# One Digit Field — Your patterns, to the world > Your patterns, to the world (iPhone/iPad app by Tomoyoshi Natsui.) - Source: https://appshunter.io/ios/app/one-digit-field/id1535955953 (this page in markdown: same URL + `.md`) - Developer: [Tomoyoshi Natsui](https://appshunter.io/developer/597383982) - Category: Games, Lifestyle, Puzzle - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 87 MB - Languages: English, Japanese, Korean, Chinese, Spanish, Chinese - Released: 2020-12-06 - Data updated: 2026-08-08 - User reviews in markdown: https://appshunter.io/ios/app/one-digit-field/id1535955953/reviews.md ## What is One Digit Field? One Digit Field is a puzzle game where you put numbers one by one in a 9x9 square while thinking carefully. The rules of the game are very simple, and the goal is to put numbers in all the squares according to the following placement rules. ・ 1 to 9 are lined up in one vertical row ・ 1 to 9 are lined up in a horizontal row ・ 1 to 9 should be placed for each 3x3 block This rule is similar to the puzzle games SUDOKU and Number Place, which are popular all over the world, regardless of age or gender, so you may be familiar with it. As a developer, I also love SUDOKU, and I think it's a perfect game for a short wait, and I enjoy several apps of the same type. One Digit Field is developed with a focus on "playability" and "multiplay". Of course, regarding the quality of the problem, I think we have prepared a so-called "good question". There are 7 difficulty levels, and each level has 200 stages, so we have prepared a total of 1400 stages. Furthermore, you can add 100 stages for 1 dollar by In-App Purchase (Non-Consumable). In addition, there is a daily stage, so you can enjoy it forever. First of all, please enjoy this app, and discover the deep fun of SUDOKU. *The music playing in this app is the music published in "Music Atelier Amacha" (https://amachamusic.chagasi.com). *From version 1.1, the automatic deletion function for digit memos has been added. For example, if you enter "5" at 9 times and use them up, the digit memo of "5" left on the board is unnecessary and annoying, so you had to manually delete them one by one. The automatic deletion function for digit memos deletes digit memos that are no longer needed in such cases. *In-App Purchase Information You can add 100 stages for 1 dollar by In-App Purchase (Non-Consumable). *In-App Purchase Restoration When reinstalling this application, you can restore the above purchase by logging in with the same Apple ID as purchased and tap 'Restore Added Stages' at Setting view. *Notes of In-App Purchase In-app billing will be charged via iTunes account. *Privacy Policy and Terms of Use http://hrathnir.info/index.php/page/iPhoneAppSupport ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Stages (Hard 00101-00200) | $0.99 | one-time | | Stages (Very Hard 00101-00200) | $0.99 | one-time | | Stages (Expert 00101-00200) | $0.99 | one-time | | Stages (Beginner 00201-00300) | $0.99 | one-time | | Stages (Very Easy 00201-00300) | $0.99 | one-time | | Stages (Easy 00201-00300) | $0.99 | one-time | | Stages (Normal 00201-00300) | $0.99 | one-time | | Stages (Very Hard 00201-00300) | $0.99 | one-time | | Stages (Hard 00201-00300) | $0.99 | one-time | | Stages (Expert 00201-00300) | $0.99 | one-time | ## Version history (last 5 releases) ### 4.5 — 2026-08-06 • New "News from Phil" screen: get notified when your shared patterns receive likes. You can also follow Phil on X and grab the LINE stickers here. • "Weekly Popular" added to Community Patterns: see the week's most-liked patterns at a glance. • New achievements for sharing patterns and giving or receiving likes. • Added the "Finned X-Wing" solving technique. • Minor bug fixes. ### 4.4 — 2026-07-21 Our mascot Phil has a brand-new look! The flying squirrel who floats across the Home, Play, and Clear screens — along with the clear-screen somersault animation and the app icon — has been redrawn to be even cuter. Enjoy your daily number puzzles with Phil! ### 4.3 — 2026-07-18 • Phil now celebrates with a front somersault when you clear a stage (tap to skip) • Minor bug fixes and stability improvements ### 4.2 — 2026-07-15 - Everyone's Patterns: comments are now automatically translated into your language (iOS 18 or later). Tap "Original" to view the original text - Everyone's Patterns: you can now choose the pattern type yourself when posting - In the Light Blue / Light Red color themes, the selected number is now shown in bold black, making it easier to distinguish from incorrect numbers - Fixed an issue where the elapsed time was sometimes not displayed during play ### 4.1 — 2026-07-14 What's New in V4.1 ● New feature: Play Score! Earn points by logging in daily, clearing stages, and playing multiplayer matches. Compete with players around the world on the new "Play Score" Game Center leaderboard. ● Pattern Sharing has been upgraded! - You can now "Like" your favorite patterns - A popularity ranking helps you find trending patterns instantly - Pattern types are now detected and labeled automatically ● Phil, our mascot, now celebrates with you on the stage clear screen! This update also includes minor improvements and bug fixes. Thank you for playing! ## Apps similar to One Digit Field | App | Rating | Price | Category | | --- | --- | --- | --- | | [Abby Ball™ Rotate, Roll & Jump](https://appshunter.io/ios/app/abby-ball-rotate-roll-and-jump/id431827740) | 4.5 (34) | Free | Games | | [MAGIC BLOCK: Puzzle Action](https://appshunter.io/ios/app/magic-block-puzzle-action/id1620755667) | — | Free | Games | | [Onet Jigsaw](https://appshunter.io/ios/app/onet-jigsaw/id1606618711) | 5.0 (1) | Free | Games | | [OMG - One Minute Game](https://appshunter.io/ios/app/omg-one-minute-game/id1530161540) | — | Free | Games | | [Puzzle Princess Jigsaws Cartoon Fairy Girls Game](https://appshunter.io/ios/app/puzzle-princess-jigsaws-cartoon-fairy-girls-game/id1268489380) | — | Free | Games | | [Pterosaur: Robot Dinosaur Mech Fighting Game](https://appshunter.io/ios/app/pterosaur-robot-dinosaur-mech-fighting-game/id1188231540) | 4.5 (6) | Free | Games | ## More apps by Tomoyoshi Natsui - [Cam+ (for geeks)](https://appshunter.io/ios/app/cam-plus-for-geeks/id627309750) - [Everlisten++](https://appshunter.io/ios/app/everlisten-plus-plus/id1116483197) - [Mini-Compo](https://appshunter.io/ios/app/mini-compo/id1513909765) All apps by Tomoyoshi Natsui: https://appshunter.io/developer/597383982 ## Related topics [tomoyoshi natsui](https://appshunter.io/ios/topics/tomoyoshi-natsui) --- *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 2026-08-08.*