# performify vs DA20 M&B mobile

The clearest difference is price: performify at Free against DA20 M&B mobile's $1.99. performify also leads on update cadence (every 2 months vs every 6 months). DA20 M&B mobile's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

performify is free to download; DA20 M&B mobile costs $1.99 up front. performify sells 1 in-app purchase, starting at $2.99 per month. DA20 M&B mobile asks for nothing beyond the download.

performify ships an update every 2 months, DA20 M&B mobile every 6 months. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | performify | DA20 M&B mobile |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/da20-m-and-b-mobile/id1544408972/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | — | Paid |
| Size | 95 MB | 7 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pascal Burlet](https://appshunter.io/developer/1493425854) | [Pedro Isidoro](https://appshunter.io/developer/1506809339) |

## What reviewers say

### performify

[App page](https://appshunter.io/ios/app/performify/id1493425855)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AviatorPro | $2.99 | per month |


### DA20 M&B mobile

[App page](https://appshunter.io/ios/app/da20-m-and-b-mobile/id1544408972)

Calculate mass and balance for various Diamond aircraft models with interactive weight input and real-time chart plotting. Generate professional PDF loadsheets and convert weight/fuel units. Receive alerts for overweight conditions.

**Highlights:** Mass and balance calculation, Interactive weight input, Real-time chart plotting, PDF loadsheet generation, Weight and fuel unit conversion, Overweight alerts

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is performify free?

performify is free to download, with in-app purchases available.

### Is DA20 M&B mobile free?

DA20 M&B mobile costs $1.99, with no in-app purchases.

### Do performify or DA20 M&B mobile have ads?

Neither performify nor DA20 M&B mobile shows ads.

### Which is updated more often, performify or DA20 M&B mobile?

performify ships an update every 2 months, and DA20 M&B mobile every 6 months. Most recently, performify was updated on October 4, 2026 and DA20 M&B mobile 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.*