# BYB Telemetry vs Trailmetry

The clearest difference is in-app purchases: BYB Telemetry at none against Trailmetry's 2. Trailmetry's advantage is update cadence (every 6 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Trailmetry sells 2 in-app purchases, starting at $5.99 per month. BYB Telemetry asks for nothing beyond the download.

BYB Telemetry ships an update fortnightly, Trailmetry every 6 days. The most recent releases landed on September 9, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | BYB Telemetry | Trailmetry |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Size | 38 MB | 95 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BYB Tech](https://appshunter.io/developer/1524533536) | [Franck Guillaouic](https://appshunter.io/developer/1862407295) |

## What reviewers say

### BYB Telemetry

[App page](https://appshunter.io/ios/app/byb-telemetry/id1535911432)

**Features:** Vision Pro support

**In-app purchases:** none


### Trailmetry

[App page](https://appshunter.io/ios/app/trailmetry/id6756703543)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 'Core' Monthly Subscription | $5.99 | per month |
| Connect Monthly Subscription | $9.99 | per month |


## Frequently asked questions

### Is BYB Telemetry free?

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

### Is Trailmetry free?

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

### Do BYB Telemetry or Trailmetry have ads?

Neither BYB Telemetry nor Trailmetry shows ads.

### Which is updated more often, BYB Telemetry or Trailmetry?

BYB Telemetry ships an update fortnightly, and Trailmetry every 6 days. Most recently, BYB Telemetry was updated on September 9, 2026 and Trailmetry on September 16, 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.*