# Sona Mobile vs Quality Driven Software

The clearest difference is update cadence: Quality Driven Software at monthly against Sona Mobile's every 3 months. 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.

Sona Mobile ships an update every 3 months, Quality Driven Software monthly. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Sona Mobile | Quality Driven Software |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (10 ratings)](https://appshunter.io/ios/app/sona-mobile/id562898091/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | — |
| Size | 38 MB | 66 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sona Systems](https://appshunter.io/developer/562898094) | [Martha Woodward](https://appshunter.io/developer/6777126486) |

## What reviewers say

### Sona Mobile

[App page](https://appshunter.io/ios/app/sona-mobile/id562898091)

This mobile application grants users access to the Sona Systems platform. It is designed for participants, researchers, and principal investigators, requiring the specific URL of a Sona site for functionality.

**Highlights:** Access Sona Systems, For participants, For researchers, For principal investigators, Requires Sona site URL

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

**In-app purchases:** none


### Quality Driven Software

[App page](https://appshunter.io/ios/app/quality-driven-software/id6777126484)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sona Mobile free?

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

### Is Quality Driven Software free?

Quality Driven Software is free to download, with no in-app purchases.

### Do Sona Mobile or Quality Driven Software have ads?

Neither Sona Mobile nor Quality Driven Software shows ads.

### Which is updated more often, Sona Mobile or Quality Driven Software?

Sona Mobile ships an update every 3 months, and Quality Driven Software monthly. Most recently, Sona Mobile was updated on September 20, 2026 and Quality Driven Software on September 24, 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.*