# Bird Out vs Cup Stack Flow

The clearest difference is in-app purchases: Cup Stack Flow at none against Bird Out's 4. Bird Out's advantage is update cadence (daily vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Bird Out sells 4 one-off in-app purchases. Cup Stack Flow asks for nothing beyond the download.

Bird Out ships an update daily, Cup Stack Flow fortnightly. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Bird Out | Cup Stack Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Fortnightly |
| Size | 175 MB | 196 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Celik Berk Altingok](https://appshunter.io/developer/1552263238) | [Mehmet Fatih Sahin](https://appshunter.io/developer/1700697055) |

## What reviewers say

### Bird Out

[App page](https://appshunter.io/ios/app/bird-out-color-sort-jam/id6761422018)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coin Pack | $1.99 | one-time |
| Medium Coin Pack | $5.99 | one-time |
| No Ads | $5.99 | one-time |
| Large Coin Pack | $8.99 | one-time |


### Cup Stack Flow

[App page](https://appshunter.io/ios/app/cup-stack-flow/id6762182560)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bird Out free?

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

### Is Cup Stack Flow free?

Cup Stack Flow is free to download, with no in-app purchases.

### Do Bird Out or Cup Stack Flow have ads?

Both Bird Out and Cup Stack Flow show ads.

### Which is updated more often, Bird Out or Cup Stack Flow?

Bird Out ships an update daily, and Cup Stack Flow fortnightly. Most recently, Bird Out was updated on September 20, 2026 and Cup Stack Flow on September 12, 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.*