Stack Sort vs Clue Formula
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Stack Sort
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Stack Sort is New Brain Puzzle Game Stack Rings Arrange in Color Order Like Color Hanoi Tower Puzzle , Sort it the Rings in Pole Have Fun . Most Addictive and Most Fun Puzzle Game Stack Rings and Hoop Rings How to Play Stack Sort Game Swipe to Arrange the Rings in Same Color Tower Stack Sort Game Features Play Like Sort Master with Hoop Rings and Make Color Stack Sort Tower Solve logic puzzle Color ball brain teaser Color Ziggurat Game Color Games Countless challenges Here its TOwer of Stack Hanoi Sort Puzzle Game Color Puzzle Game with Sort Arrange the color ball in color matching order in tubes Enjoy a good brain teaser game! 2020 games featuring brain teaser for everyone Brain Game , Puzzle Game
Clue Formula
Engage in a 3D Mahjong puzzle game featuring IQ-test style tiles. Match selectable pairs to clear levels, with increasing difficulty as you progress. Utilize hints and shuffles to aid your gameplay and compete on leaderboards.
- 3D Mahjong puzzle gameplay
- IQ-test style tiles
- Layered 3D levels
- Hint and shuffle options
- Leaderboard competition
- VoiceOver accessibility
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Clue Formula is a 3D Mahjong puzzle with IQ-test style tiles and pattern-matching challenges. Your goal is to complete all levels. In each level, remove all tiles by selecting matching pairs. Not every matching tile can be selected. A tile is selectable only when it is positioned at the end of a row - when there is no neighboring tile on at least one side (left or right) within the same layer. To complete a level, you need to find matching pairs where both tiles are selectable. Each new level becomes more challenging as you advance. A hint can show all selectable matching pairs. A shuffle can rearrange the remaining tiles and help you continue the level. Key Features: 3D Mahjong Puzzle: Match selectable pairs and clear each level. IQ-Test Style Tiles: Match tiles using shapes and symbols. Layered 3D Levels: Look through rows and layers to find selectable matching pairs. Leaderboards: Complete levels and compete for a place on the leaderboards. Accessibility and Device Support: Clue Formula is fully playable with VoiceOver. Clue Formula is fully supported on Mac. Extra hints and extra shuffles are available for purchase.
Screenshots
Verdict
The clearest difference is in-app purchases: Stack Sort at none against Clue Formula's 2. Stack Sort also leads on ads (none vs shown) and iOS requirement (9.0 vs 17.0). On price, update cadence 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. Clue Formula sells 2 one-off in-app purchases. Stack Sort asks for nothing beyond the download.
Stack Sort ships an update every 5 days, Clue Formula every 4 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.
| Parameter | Stack Sort | Clue Formula |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 5 days | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 158 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | DEVGEIM | x2line.com LLC |
In-app purchases
Stack Sort
No in-app purchases
Clue Formula
- Hint$0.99
- Shuffle$0.99
