色彩感覚ゲーム vs Missing Digits
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
色彩感覚ゲーム
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あなたの色彩センスが丸わかり! あなたはロボット工場の職員。 作業内容は、「ロボットに魂を込めること」。 込める魂は、ロボットの体の色と出来るだけ近い色でなくてはなりません。 手元の操作パネルで、R、G、B、それぞれの値を動かして同じ色になるように調節しましょう。 今日製造されるロボットは、全部で6機。 あなたはどのくらい上手に魂を込めることができるでしょうか。 あなたの挑戦をお待ちしております。
Missing Digits
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Guessing won't fill the blanks. Logic will. Follow the carry from the ones column, and every hidden digit narrows to a single answer. Missing-digit arithmetic and classic cryptarithms, in one quiet app. • Free to start. No subscription • No third-party ads • Your records stay on this device ■ Your first puzzle Your first puzzle walks you through it, one column at a time. No need to know the rules. You can replay it anytime from How to Play in Settings. ■ Missing digits Part of a written sum is hidden. Fill in the blanks so the arithmetic works. • Easy: column addition • Normal: addition and single-digit multiplication, chosen so you can't just subtract your way through • Hard: long multiplication with partial products • Oni: 4×3-digit and 5×2-digit long multiplication Puzzles are generated on your device, so you never run out. ■ Cryptarithms Letters stand for digits, as in SEND + MORE = MONEY. Same letter, same digit; different letters, different digits. 119 puzzles built from everyday English words. ■ Exactly one answer Each puzzle starts as a completed sum, and digits are hidden only while a single answer remains. Every cryptarithm was chosen because it has one solution. ■ Today's puzzle and ranks One puzzle a day, the same for everyone. Weekdays are Normal; weekends are Hard long multiplication. Earn points as you solve and climb from 10th Kyu to Master. Your streak and a calendar keep your history visible. ■ Quiet help • Columns that can't work out are gently tinted (you can turn this off) • If you're truly stuck, a hint reveals a single cell ■ Chalk on a blackboard Deep green board, chalk-white digits, set vertically the way you'd write by hand. The board lights up gold when you solve it. On iPhone and iPad, the board grows to fit your screen. ■ Great for • Sudoku and crossword fans who want puzzles that actually use arithmetic • Anyone who'd rather deduce than drill • Kids preparing for entrance exams, and their parents • Building a small daily brain-training habit • Playing on planes and trains with no signal ■ Privacy • No account required • Puzzles are created inside the app; no connection needed to play • No tracking • To show other apps by the same developer, the app reads public App Store listings only. None of your data is sent
Screenshots
Verdict
The clearest difference is in-app purchases: 色彩感覚ゲーム at none against Missing Digits's 1. 色彩感覚ゲーム also leads on update cadence (every 3 days vs monthly) and iOS requirement (10.0 vs 17.0). On price, ads and device support 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. Missing Digits sells 1 one-off in-app purchase. 色彩感覚ゲーム asks for nothing beyond the download.
色彩感覚ゲーム ships an update every 3 days, Missing Digits monthly. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.
| Parameter | 色彩感覚ゲーム | Missing Digits |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 81 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Chikai Ito | torankirite |
In-app purchases
色彩感覚ゲーム
No in-app purchases
Missing Digits
- Premium$4.99









