# TZR Studio vs Log AI

The clearest difference is monetization model: TZR Studio at free against Log AI's free with in-app purchases. TZR Studio also leads on iOS requirement (16.4 vs 18.0). Log AI's advantage is update cadence (every 2 months vs every 8 months). On price, rating, ratings volume and ads 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 Log AI. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

TZR Studio ships an update every 8 months, Log AI every 2 months. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | TZR Studio | Log AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/tzr-studio/id6744257194/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/log-ai/id6748774571/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 121 MB | 11 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) | [Robert Patrick Lynch](https://appshunter.io/developer/1825940831) |

## 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


### Log AI

[App page](https://appshunter.io/ios/app/log-ai/id6748774571)

This app offers a private space for journaling and self-reflection with AI-powered insights. It helps users understand their patterns, track moods, and connect with a coach when ready, all while prioritizing user privacy.

**Highlights:** AI-powered reflections, Mood tracking, Pattern identification, Private journaling, Coach connection, AI reflection chat

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TZR Studio free?

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

### Is Log AI free?

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

### Which has better reviews, TZR Studio or Log AI?

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

### Do TZR Studio or Log AI have ads?

Neither TZR Studio nor Log AI shows ads.

### Which is updated more often, TZR Studio or Log AI?

TZR Studio ships an update every 8 months, and Log AI every 2 months. Most recently, TZR Studio was updated on October 13, 2026 and Log AI 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.*