# QAudit vs Data21

The clearest difference is update cadence: Data21 at every 5 days against QAudit's every 3 months. QAudit's advantage is iOS requirement (15 vs 26.4). 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.

QAudit ships an update every 3 months, Data21 every 5 days. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | QAudit | Data21 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/data21/id1350287433/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 3 MB | 34 MB |
| Requires iOS | **15** | 26.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Abo ltd](https://appshunter.io/developer/496547587) | [Alexandre Alves da Costa](https://appshunter.io/developer/1111954461) |

## What reviewers say

### QAudit

[App page](https://appshunter.io/ios/app/qaudit/id804726926)

**Features:** macOS Compatibility

**In-app purchases:** none


### Data21

[App page](https://appshunter.io/ios/app/data21/id1350287433)

This application allows users to anonymously mark and collect important data and feedback about their products and businesses. It's designed to help businesses gather insights for investment, sales, and purchasing decisions.

**Highlights:** Anonymous data collection, Product feedback gathering, Business insights, Investment data support, Sales improvement data, Purchasing optimization data

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

**In-app purchases:** none


## Frequently asked questions

### Is QAudit free?

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

### Is Data21 free?

Data21 is free to download, with no in-app purchases.

### Do QAudit or Data21 have ads?

Neither QAudit nor Data21 shows ads.

### Which is updated more often, QAudit or Data21?

QAudit ships an update every 3 months, and Data21 every 5 days. Most recently, QAudit was updated on October 11, 2026 and Data21 on October 10, 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.*