# Primatrix vs Bibliott

The clearest difference is iOS requirement: Primatrix at 12.0 against Bibliott's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Primatrix ships an update every 6 days, Bibliott every 5 days. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Primatrix | Bibliott |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 5 days** |
| Size | 39 MB | 67 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Alexey Andreev](https://appshunter.io/developer/1622101276) | [Sergei Averkiev](https://appshunter.io/developer/1437906333) |

## What reviewers say

### Primatrix

[App page](https://appshunter.io/ios/app/primatrix/id6740640856)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bibliott

[App page](https://appshunter.io/ios/app/bibliott/id6787875474)

**In-app purchases:** none


## Frequently asked questions

### Is Primatrix free?

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

### Is Bibliott free?

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

### Do Primatrix or Bibliott have ads?

Neither Primatrix nor Bibliott shows ads.

### Which is updated more often, Primatrix or Bibliott?

Primatrix ships an update every 6 days, and Bibliott every 5 days. Most recently, Primatrix was updated on September 20, 2026 and Bibliott on September 22, 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.*