# Bottle Cap vs Shelf

The clearest difference is ads: Bottle Cap at none against Shelf's shown. Bottle Cap also leads on iOS requirement (8.0 vs 12.0). Shelf's advantage is update cadence (monthly vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bottle Cap ships an update every 2 months, Shelf monthly. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Bottle Cap | Shelf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bottle-cap-challenge/id1473567010/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 18 MB | 64 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marcel Fuchs](https://appshunter.io/developer/879841231) | [瑞 黄](https://appshunter.io/developer/1777253829) |

## What reviewers say

### Bottle Cap

[App page](https://appshunter.io/ios/app/bottle-cap-challenge/id1473567010)

Test your timing and precision in this mobile game inspired by the viral challenge. Tap the screen at the right moment to execute a perfect kick and open a bottle cap.

**Highlights:** Tap to jump, Tap again to kick, Timed gameplay, Skill-based challenges, Inspired by viral trend

**Features:** macOS Compatibility

**In-app purchases:** none


### Shelf

[App page](https://appshunter.io/ios/app/shelf-master/id6737683880)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bottle Cap free?

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

### Is Shelf free?

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

### Do Bottle Cap or Shelf have ads?

Shelf shows ads; Bottle Cap does not.

### Which is updated more often, Bottle Cap or Shelf?

Bottle Cap ships an update every 2 months, and Shelf monthly. Most recently, Bottle Cap was updated on October 12, 2026 and Shelf on September 30, 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.*