# MAVLink Telemetry vs Diff Checker

The clearest difference is in-app purchases: MAVLink Telemetry at none against Diff Checker's 2. MAVLink Telemetry also leads on update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Diff Checker sells 2 in-app purchases, starting at $2.99 per 7 days. MAVLink Telemetry asks for nothing beyond the download.

MAVLink Telemetry ships an update every 2 weeks, Diff Checker every 2 months. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | MAVLink Telemetry | Diff Checker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mavlink-telemetry/id1640519550/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 37 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Random Noise Studios](https://appshunter.io/developer/556595523) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### MAVLink Telemetry

[App page](https://appshunter.io/ios/app/mavlink-telemetry/id1640519550)

Monitor live flight data from MAVLink-compatible drones in real-time. Track altitude, speed, GPS, battery, and more on an interactive map with system health indicators. Ideal for professional drone operators needing field telemetry.

**Highlights:** Real-time MAVLink telemetry via UDP, Live map with flight trail tracking, Battery, GPS, and RC signal monitoring, System health dashboard, Flight timer and altitude tracking, Demo mode for exploration

**Features:** Vision Pro support

**In-app purchases:** none


### Diff Checker

[App page](https://appshunter.io/ios/app/diff-checker-text-compare/id6772266827)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |


## Frequently asked questions

### Is MAVLink Telemetry free?

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

### Is Diff Checker free?

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

### Do MAVLink Telemetry or Diff Checker have ads?

Neither MAVLink Telemetry nor Diff Checker shows ads.

### Which is updated more often, MAVLink Telemetry or Diff Checker?

MAVLink Telemetry ships an update every 2 weeks, and Diff Checker every 2 months. Most recently, MAVLink Telemetry was updated on October 5, 2026 and Diff Checker on September 29, 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.*