# - Stacks - vs Flip Rock

The clearest difference is iOS requirement: Flip Rock at 16.4 against - Stacks -'s 18.2. On price, ads, 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.

## The numbers

| Metric | - Stacks - | Flip Rock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/flip-rock/id6773431656/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | — | Free |
| Size | 4 MB | 44 MB |
| Requires iOS | 18.2 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryley Herrington](https://appshunter.io/developer/536238316) | [Chip Keyes](https://appshunter.io/developer/6773431658) |

## What reviewers say

### - Stacks -

[App page](https://appshunter.io/ios/app/stacks/id6744260489)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flip Rock

[App page](https://appshunter.io/ios/app/flip-rock/id6773431656)

Discover hidden creatures and fossils by flipping a virtual rock each day. Build a collection in your field guide with real facts about each find. Enjoy a calm, curiosity-driven experience without timers or pressure.

**Highlights:** Daily rock flip, Discover critters and fossils, Build a field guide, Learn real facts, Vintage pixel art, No timers or pressure

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

**In-app purchases:** none


## Frequently asked questions

### Is - Stacks - free?

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

### Is Flip Rock free?

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

### Do - Stacks - or Flip Rock have ads?

Neither - Stacks - nor Flip Rock 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.*