# Flap vs 37S

The clearest difference is in-app purchases: 37S at none against Flap's 5. 37S also leads on review sentiment (100% vs 69%). Flap's advantage is ratings volume (22 vs 2) and iOS requirement (7.0 vs 13.0). On price, rating, ads and device support there is nothing between them.

Both are free to download. Flap sells 5 one-off in-app purchases. 37S asks for nothing beyond the download.

37S holds the better App Store score, 4.0 against 3.8. That said, the two scores are not equally well evidenced: Flap has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 69% of Flap's written reviews are positive against 100% of 37S's.

## The numbers

| Metric | Flap | 37S |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (22 ratings)](https://appshunter.io/ios/app/flap/id1253509823/reviews) | **[4.0 (2 ratings)](https://appshunter.io/ios/app/37s-37-seconds/id1602845368/reviews)** |
| Number of ratings | **22** | 2 |
| Positive reviews | 69.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 117 MB | 61 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Umbrella Games LLC](https://appshunter.io/developer/1059299541) | [Andreii Simaranov](https://appshunter.io/developer/1676912439) |

## What reviewers say

### Flap

[App page](https://appshunter.io/ios/app/flap/id1253509823)

Navigate a colorful, futuristic path by tapping to make a bird flap and avoid obstacles. Customize your bird's colors, collect new birds, and utilize power-ups to progress. Daily gifts add an extra incentive to keep playing.

**Highlights:** Tap to flap controls, Color customization, Collect 20 birds, Daily gifts, Power-ups

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Gems | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Unlock Color Editor | $1.99 | one-time |
| 1,500 Gems | $3.99 | one-time |
| Unlock all birds | $9.99 | one-time |


### 37S

[App page](https://appshunter.io/ios/app/37s-37-seconds/id1602845368)

A challenging arcade game where players must navigate a square through a maze of moving blocks and walls for 37 seconds. It's an addictive test of reflexes and precision, rumored to be used by the US Air Force for pilot training.

**Highlights:** Hold and drag gameplay, Avoid moving blocks and walls, Test reflexes and precision, Addictive challenge, Simple controls

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

**In-app purchases:** none


## Frequently asked questions

### Is Flap free?

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

### Is 37S free?

37S is free to download, with no in-app purchases.

### Which has better reviews, Flap or 37S?

37S is rated higher. Flap averages 3.8 out of 5 from 22 ratings, while 37S averages 4.0 from 2 ratings.

### Do Flap or 37S have ads?

Neither Flap nor 37S shows ads.

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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.*