# TLevels vs yayscale

The clearest difference is device support: TLevels at 3 against yayscale's 1. TLevels also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. TLevels sells 2 in-app purchases, starting at $24.99 per month and yayscale sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

TLevels ships an update every 5 days, yayscale every 4 days. The most recent releases landed on September 10, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | TLevels | yayscale |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (11 ratings)](https://appshunter.io/ios/app/tlevels/id6764432502/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 53 MB | 32 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [ELIJAH KEITH SEARLES](https://appshunter.io/developer/1892726210) | [Appricity LLC](https://appshunter.io/developer/1790362215) |

## What reviewers say

### TLevels

[App page](https://appshunter.io/ios/app/tlevels/id6764432502)

This app provides real-time insights into TRT and peptide protocols, including serum modeling, symptom tracking, and AI-powered guidance. It offers a comprehensive peptide library and helps users understand their health data privately on their device.

**Highlights:** Serum modeling for testosterone levels, Symptom tracking and correlation, AI-powered peptide stacking guidance, Comprehensive 39-compound peptide library, Protocol tracking with reconstitution calculator, Lab result analysis and flagging, Progress tracking with gamification

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TLevels Pro | $24.99 | per month |
| TLevels Pro — Yearly | $149.99 | per year |


### yayscale

[App page](https://appshunter.io/ios/app/yayscale-weight-tracking/id6796112280)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| yayscale Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is TLevels free?

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

### Is yayscale free?

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

### Do TLevels or yayscale have ads?

Neither TLevels nor yayscale shows ads.

### Which is updated more often, TLevels or yayscale?

TLevels ships an update every 5 days, and yayscale every 4 days. Most recently, TLevels was updated on September 10, 2026 and yayscale on August 16, 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.*