# Bike Sizer vs TrackID

The clearest difference is in-app purchases: TrackID at none against Bike Sizer's 1. TrackID also leads on iOS requirement (12.4 vs 17.0). Bike Sizer's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Bike Sizer sells 1 one-off in-app purchase. TrackID asks for nothing beyond the download.

Bike Sizer ships an update weekly, TrackID every 3 weeks. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Bike Sizer | TrackID |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 100 MB | 65 MB |
| Requires iOS | 17.0 | **12.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TECHNOLOGIES KALIDA INC.](https://appshunter.io/developer/1616678833) | [SportManiacs](https://appshunter.io/developer/925730234) |

## What reviewers say

### Bike Sizer

[App page](https://appshunter.io/ios/app/bike-sizer/id6743167693)

Find your ideal bicycle or optimize your current setup with AI-powered recommendations. Access a comprehensive bike database and generate detailed, exportable reports to improve your cycling performance.

**Highlights:** AI-driven bike sizing, Extensive bike database, Positioning enhancement, PDF-exportable reports, Cycling practice optimization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| session | $2.99 | one-time |


### TrackID

[App page](https://appshunter.io/ios/app/trackid/id6761020055)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bike Sizer free?

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

### Is TrackID free?

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

### Do Bike Sizer or TrackID have ads?

Neither Bike Sizer nor TrackID shows ads.

### Which is updated more often, Bike Sizer or TrackID?

Bike Sizer ships an update weekly, and TrackID every 3 weeks. Most recently, Bike Sizer was updated on October 5, 2026 and TrackID on September 30, 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.*