# TZR Studio vs Synthesis Tracker

The clearest difference is update cadence: Synthesis Tracker at weekly against TZR Studio's every 8 months. Synthesis Tracker also leads on ratings volume (12 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for TZR Studio against 5.0 for Synthesis Tracker. That said, the two scores are not equally well evidenced: Synthesis Tracker has 12 ratings behind it against 1, so its average is the more settled of the two.

TZR Studio ships an update every 8 months, Synthesis Tracker weekly. Both last shipped on October 13, 2026.

## The numbers

| Metric | TZR Studio | Synthesis Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/tzr-studio/id6744257194/reviews) | [5.0 (12 ratings)](https://appshunter.io/ios/app/synthesis-tracker/id6788431222/reviews) |
| Number of ratings | 1 | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | Free | Free |
| Size | 121 MB | 58 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) | [Outliers Inc.](https://appshunter.io/developer/6788431224) |

## What reviewers say

### TZR Studio

[App page](https://appshunter.io/ios/app/tzr-studio/id6744257194)

Discover inner strength and well-being through Pilates. This app offers priority class reservations, exclusive membership perks, and a luxury studio experience. Connect with instructors and a community forum to foster growth and vitality.

**Highlights:** Priority class reservations, Exclusive membership perks, Luxury Pilates experience, Community events and forum, Progress tracking, Direct instructor communication

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

**In-app purchases:** none


### Synthesis Tracker

[App page](https://appshunter.io/ios/app/synthesis-tracker/id6788431222)

This app allows parents to easily log their child's ADHD symptoms and daily progress using voice input. It analyzes these logs to identify patterns in mood, focus, and behavior, providing a clear report for healthcare providers.

**Highlights:** Voice logging for quick entries, Track doses, mood, sleep, focus, and appetite, Automatic pattern detection, Build trend reports, 7-day timeline review, Private by design with on-device transcription

**In-app purchases:** none


## Frequently asked questions

### Is TZR Studio free?

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

### Is Synthesis Tracker free?

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

### Which has better reviews, TZR Studio or Synthesis Tracker?

TZR Studio and Synthesis Tracker are both rated 5.0 out of 5 on the App Store, from 1 and 12 ratings respectively.

### Do TZR Studio or Synthesis Tracker have ads?

Neither TZR Studio nor Synthesis Tracker shows ads.

### Which is updated more often, TZR Studio or Synthesis Tracker?

TZR Studio ships an update every 8 months, and Synthesis Tracker weekly. Most recently, TZR Studio was updated on October 13, 2026 and Synthesis Tracker on October 13, 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.*