# FitTrace Sync vs Lettest

The clearest difference is in-app purchases: Lettest at none against FitTrace Sync's 5. Lettest also leads on update cadence (weekly vs every 6 weeks). FitTrace Sync's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. FitTrace Sync sells 5 in-app purchases, starting at $8.99 per month. Lettest asks for nothing beyond the download.

FitTrace Sync ships an update every 6 weeks, Lettest weekly. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | FitTrace Sync | Lettest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (9 ratings)](https://appshunter.io/ios/app/fittrace-sync/id1531995820/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [FitTrace](https://appshunter.io/developer/1531995822) | [Will Arentz](https://appshunter.io/developer/1117126954) |

## What reviewers say

### FitTrace Sync

[App page](https://appshunter.io/ios/app/fittrace-sync/id1531995820)

This app helps you understand your DEXA body composition results. It offers AI-powered recommendations and connects you with human wellness professionals for personalized guidance. View detailed reports, integrate with Apple Health, and track over 200 variables.

**Highlights:** DEXA body composition insights, AI Assistant for personalized recommendations, Connect with Human Assistants, Electronic scan transfer or manual entry, Formatted reports with Apple Health integration, Compare scans with athletes, Track over 200 DEXA variables

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FitTrace Monthly Subscription | $8.99 | per month |
| FitTrace Monhtly Subscription | $12.99 | per month |
| FitTrace Annual Subscription | $24.99 | per year |
| FitTrace Annual Subscription | $34.99 | per year |
| Manual Scan Entry | $9.99 | one-time |


### Lettest

[App page](https://appshunter.io/ios/app/lettest/id6765866505)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FitTrace Sync free?

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

### Is Lettest free?

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

### Do FitTrace Sync or Lettest have ads?

Neither FitTrace Sync nor Lettest shows ads.

### Which is updated more often, FitTrace Sync or Lettest?

FitTrace Sync ships an update every 6 weeks, and Lettest weekly. Most recently, FitTrace Sync was updated on October 24, 2026 and Lettest 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.*