# TMR Memory Test vs Optimal State

The clearest difference is in-app purchases: TMR Memory Test at none against Optimal State's 1. TMR Memory Test also leads on update cadence (every 3 weeks vs every 5 months) and iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Optimal State sells 1 in-app purchase, starting at $4.99 per month. TMR Memory Test asks for nothing beyond the download.

TMR Memory Test ships an update every 3 weeks, Optimal State every 5 months. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | TMR Memory Test | Optimal State |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/optimal-state/id1604424804/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 36 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Backyard Brains](https://appshunter.io/developer/367151203) | [Optimal State LLC](https://appshunter.io/developer/1553406048) |

## What reviewers say

### TMR Memory Test

[App page](https://appshunter.io/ios/app/tmr-memory-test/id1467896935)

**Features:** macOS Compatibility

**In-app purchases:** none


### Optimal State

[App page](https://appshunter.io/ios/app/optimal-state/id1604424804)

Track your mental and emotional state alongside physical sensations. Gain insights into your patterns with visual charts and receive personalized tools and suggestions for improvement. Daily reminders help you stay balanced and make positive life changes.

**Highlights:** Mental/Emotional State Tracking, Body Feeling Assessment, Visual Pattern Charts, Daily Check-in Reminders, Personalized Tools & Suggestions, Intuitive Navigation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Optimal State | $4.99 | per month |


## Frequently asked questions

### Is TMR Memory Test free?

TMR Memory Test is free to download, with no in-app purchases.

### Is Optimal State free?

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

### Do TMR Memory Test or Optimal State have ads?

Neither TMR Memory Test nor Optimal State shows ads.

### Which is updated more often, TMR Memory Test or Optimal State?

TMR Memory Test ships an update every 3 weeks, and Optimal State every 5 months. Most recently, TMR Memory Test was updated on September 17, 2026 and Optimal State on September 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.*