Word Math vs Chroma Map Lock
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Word Math
This puzzle game transforms words into numbers based on their letter count. Solve math expressions using these word values against the clock or in relaxed modes. It's a unique blend of vocabulary and arithmetic that tests logic and language skills.
- Words convert to letter-count values
- Solve math expressions with word values
- Classic, Timed, and Endless game modes
- Daily unique puzzle challenge
- Combines vocabulary and arithmetic skills
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Word Math is a unique puzzle game where words become numbers. Each word’s letter count turns into a value—and your task is to solve fun and clever math expressions using those values. Simple idea. Surprisingly addictive gameplay. How It Works Each word has a length. “cat” → 3, “blue” → 4, “orange” → 6… Combine them with a math operator 3 + 4, 6 – 3, 5 × 2, 8 ÷ 4… Enter the answer before time runs out or mistakes pile up! A fresh blend of vocabulary and arithmetic that challenges both your logic and language skills. Game Modes • Classic Solve as many equations as possible. One mistake ends the run. • Timed A 90-second countdown. Solve quickly, aim high, and manage your mistakes. • Endless Relaxed pacing with no time pressure. You get up to 5 mistakes—how long can you survive? • Daily Challenge One unique puzzle every day. One chance only. Come back tomorrow for a fresh challenge!
Chroma Map Lock
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Chroma Map Lock turns any photo into a puzzle built from your own memory. Upload a picture from your gallery. The game immediately strips every colour out of it, reducing it to a greyscale edge map — a sketch made of boundaries and shapes. Sky meeting horizon. Face meeting background. Shadow falling across a wall. The structure of your photo, intact. The colour, gone. Below the sketch, eight colour swatches appear. These are not random colours. They are extracted from your photo by a clustering algorithm that analyses every pixel and finds the eight most representative colour groups. The dominant palette of your image, distilled to eight squares, displayed in shuffled order. The task: place each swatch back into the correct region of the sketch. Select a swatch and tap anywhere on the greyscale image. If the region you tapped belongs to that colour, the entire region simultaneously reveals its original pixels in full colour — that area of your photo lights up exactly as it was. If you are wrong, the tapped region flashes red for a moment, showing you its full shape and extent. That flash is information: you now know what region that colour belongs to, even if you do not yet know which swatch it matches. The game ends when all eight colours are correctly placed and your photo has been rebuilt from its skeleton. The final image matches the original exactly, because every pixel was always still there — just hidden under the greyscale until you found where each colour belonged. The difficulty is entirely personal. A landscape with clear sky, ground, and water is straightforward — the clusters divide neatly along the shapes you can see in the sketch. A portrait against a complex background is harder — the algorithm might find three similar skin tones as separate swatches, and distinguishing them requires remembering which parts of the face catch the light. A market scene or a forest is harder still — many colours of similar brightness, indistinguishable in greyscale, each needing to be placed by reasoning about what object occupies that shape. Your memory of your own photo is the advantage the game gives you. You know what colour the jacket was. You know what the sky looked like that afternoon. You know which wall was painted white and which was painted cream. The player who remembers their photo well will score better than the player who does not. The puzzle rewards attention. A daily curated image is available for players who want a common puzzle: a painting, a photograph, a natural landscape. The daily puzzle is the same for every player, and scores are shared. Your photo never leaves your device. All processing happens locally.
Screenshots
Verdict
The clearest difference is update cadence: Chroma Map Lock at every 2 days against Word Math's every 2 weeks. Word Math's advantage is iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Word Math ships an update every 2 weeks, Chroma Map Lock every 2 days. The most recent releases landed on September 30, 2026 and September 20, 2026 respectively.
| Parameter | Word Math | Chroma Map Lock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (266 ratings) — better | — |
| Positive reviews | 11.1% of reviews | — |
| Number of ratings | 266 — better | — |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 137 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | Marvin Marc Arion Wan | Lieke Schreurs |
In-app purchases
Word Math
No in-app purchases
Chroma Map Lock
No in-app purchases









