# Helichopter vs Clue Formula

The clearest difference is in-app purchases: Helichopter at none against Clue Formula's 2. Helichopter also leads on ads (none vs shown). Clue Formula's advantage is rating (5.0 vs 4.6) and update cadence (every 4 days vs fortnightly). On price, review sentiment, ratings volume and device support there is nothing between them.

Both are free to download. Clue Formula sells 2 one-off in-app purchases. Helichopter asks for nothing beyond the download.

Clue Formula holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 11 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Helichopter ships an update fortnightly, Clue Formula every 4 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Helichopter | Clue Formula |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (11 ratings)](https://appshunter.io/ios/app/helichopter/id1560400864/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/clue-formula/id1616776014/reviews)** |
| Number of ratings | **11** | 4 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 22 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Mayo](https://appshunter.io/developer/1520091704) | [x2line.com LLC](https://appshunter.io/developer/425135293) |

## What reviewers say

### Helichopter

[App page](https://appshunter.io/ios/app/helichopter/id1560400864)

This game is designed with extensive adaptations for players with severe motor disabilities, cognitive impairments, visual impairments, and cortical vision impairment. It features switch adaptability, though some bugs have been reported.

**Highlights:** Adaptations for motor disabilities, Cognitive impairment support, Visual impairment features, Cortical vision impairment compatibility, Switch adaptability

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Helichopter free?

Helichopter is free to download, with no in-app purchases.

### Is Clue Formula free?

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

### Which has better reviews, Helichopter or Clue Formula?

Clue Formula is rated higher. Helichopter averages 4.6 out of 5 from 11 ratings, while Clue Formula averages 5.0 from 4 ratings.

### Do Helichopter or Clue Formula have ads?

Clue Formula shows ads; Helichopter does not.

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

Helichopter ships an update fortnightly, and Clue Formula every 4 days. Most recently, Helichopter was updated on November 7, 2026 and Clue Formula on November 4, 2026.

---

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