# BIRDNEST vs BERTA mobile

BIRDNEST and BERTA mobile are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 22, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | BIRDNEST | BERTA mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 84 MB | 83 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ralf Bohle GmbH](https://appshunter.io/developer/420390733) | [Betonbau GmbH und Co. KG](https://appshunter.io/developer/1682201124) |

## What reviewers say

### BIRDNEST

[App page](https://appshunter.io/ios/app/birdnest/id6446592849)

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

**In-app purchases:** none


### BERTA mobile

[App page](https://appshunter.io/ios/app/berta-mobile/id6447675244)

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

**In-app purchases:** none


## Frequently asked questions

### Is BIRDNEST free?

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

### Is BERTA mobile free?

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

### Do BIRDNEST or BERTA mobile have ads?

Neither BIRDNEST nor BERTA mobile shows ads.

### Which is updated more often, BIRDNEST or BERTA mobile?

BIRDNEST ships an update fortnightly, and BERTA mobile fortnightly. Most recently, BIRDNEST was updated on September 22, 2026 and BERTA mobile on September 18, 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.*