# Clue Formula vs Stiction

The clearest difference is ads: Stiction at none against Clue Formula's shown. Clue Formula's advantage is update cadence (every 4 days vs monthly) and device support (3 vs 1). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Clue Formula sells 2 one-off in-app purchases and Stiction sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Clue Formula ships an update every 4 days, Stiction monthly. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Clue Formula | Stiction |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/clue-formula/id1616776014/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 22 MB | 2 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [x2line.com LLC](https://appshunter.io/developer/425135293) | [Duncan Campbell](https://appshunter.io/developer/286552076) |

## What reviewers say

### Clue Formula

[App page](https://appshunter.io/ios/app/clue-formula/id1616776014)

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.

**Highlights:** 3D Mahjong puzzle gameplay, IQ-test style tiles, Layered 3D levels, Hint and shuffle options, Leaderboard competition, VoiceOver accessibility

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hint | $0.99 | one-time |
| Shuffle | $0.99 | one-time |


### Stiction

[App page](https://appshunter.io/ios/app/stiction/id6799792974)

A fiendishly clever puzzle game designed to be incredibly addictive. Experience a unique challenge that will keep you engaged for hours. Available for a limited time at a special launch price.

**Highlights:** Fiendishly clever puzzles, Addictive gameplay, Simple mechanics, Challenging levels, Limited-time launch price

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game | $2.99 | one-time |


## Frequently asked questions

### Is Clue Formula free?

Clue Formula is free to download, with in-app purchases available.

### Is Stiction free?

Stiction is free to download, with in-app purchases available.

### Do Clue Formula or Stiction have ads?

Clue Formula shows ads; Stiction does not.

### Which is updated more often, Clue Formula or Stiction?

Clue Formula ships an update every 4 days, and Stiction monthly. Most recently, Clue Formula was updated on October 16, 2026 and Stiction on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*