Vopper 100 vs Clue Formula
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Vopper 100
A number puzzle game where players strategically manipulate tiles to reach exactly 100. It features 100 levels across four distinct worlds, each introducing unique challenges and mechanics.
- 100 handcrafted levels
- Four themed worlds with unique mechanics
- Progressive board sizes
- Eight-direction tile movement
- One-move undo
- Modern visuals and haptic feedback
- VoiceOver and Reduce Motion support
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100 levels. Four worlds. One goal: make exactly 100. Vopper 100 is a number puzzle that takes seconds to learn and grows into a deep strategic challenge. Tap an even number to halve it, tap an odd number to double it, or drag a tile to a neighboring space to move it or add the values. New numbers appear after every move, so plan ahead, make room, and never go over 100. A COMPLETE JOURNEY • Vopper: manage space as the board contracts from 7×7 to 4×4 • Ice: use tiles before inactivity freezes them • Gravity: anticipate the direction in which every number will slide • Fire: The Forge, avoid overheating and master every mechanic in the finale From level 1 to level 100, every region adds a new pressure without changing the goal: make exactly 100 before the board fills up. FEATURES • 100 handcrafted levels across four themed worlds • Progressive boards from 7×7 to 4×4 • Eight-direction movement, including diagonals • One-move undo • Clear visual cues for ice, heat, and gravity • Modern visuals, animation, music, sound, and haptic feedback • VoiceOver and Reduce Motion support • Play without an account or iCloud The free version displays one discreet banner. A single non-consumable purchase removes it forever. No subscriptions.
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 ads: Vopper 100 at none against Clue Formula's shown. Clue Formula's advantage is update cadence (every 4 days vs every 2 weeks) and ratings volume (4 vs 1). On price, rating, review sentiment and in-app purchases 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. Vopper 100 sells 2 one-off in-app purchases and Clue Formula sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Vopper 100 against 5.0 for Clue Formula. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Vopper 100 ships an update every 2 weeks, Clue Formula every 4 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | Vopper 100 | Clue Formula |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Valgy | x2line.com LLC |
Customer experience
Vopper 100
Clue Formula
In-app purchases
Vopper 100
- Remove Ads$1.99
- Extra Worlds + Bonus$2.99
Clue Formula
- Hint$0.99
- Shuffle$0.99









