# Statistics Calculation vs Donna

The clearest difference is iOS requirement: Statistics Calculation at 12.0 against Donna'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.

Statistics Calculation ships an update fortnightly, Donna weekly. The most recent releases landed on September 14, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | Statistics Calculation | Donna |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 31 MB | 31 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) | [Kishan Sagathiya](https://appshunter.io/developer/1824853698) |

## What reviewers say

### Statistics Calculation

[App page](https://appshunter.io/ios/app/statistics-calculation/id6739030466)

**Features:** macOS Compatibility

**In-app purchases:** none


### Donna

[App page](https://appshunter.io/ios/app/donna-best-ai-second-brain/id6776987368)

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

**In-app purchases:** none


## Frequently asked questions

### Is Statistics Calculation free?

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

### Is Donna free?

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

### Do Statistics Calculation or Donna have ads?

Neither Statistics Calculation nor Donna shows ads.

### Which is updated more often, Statistics Calculation or Donna?

Statistics Calculation ships an update fortnightly, and Donna weekly. Most recently, Statistics Calculation was updated on September 14, 2026 and Donna on August 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.*