# Milestone Strength vs Reaction Lab

The clearest difference is rating: Reaction Lab at 5.0 against Milestone Strength's 4.1. Reaction Lab also leads on update cadence (every 7 months vs every 21 months). Milestone Strength's advantage is ratings volume (15 vs 2) and iOS requirement (15.1 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Milestone Strength sells 1 one-off in-app purchase and Reaction Lab sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Reaction Lab holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Milestone Strength has 15 ratings behind it against 2, so its average is the more settled of the two.

Milestone Strength ships an update every 21 months, Reaction Lab every 7 months. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Milestone Strength | Reaction Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (15 ratings)](https://appshunter.io/ios/app/milestone-strength/id1491831096/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/reaction-lab-reflex-tests/id6757831974/reviews)** |
| Number of ratings | **15** | 2 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 7 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 20 MB | 22 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Layne Fletcher](https://appshunter.io/developer/1491831005) | [Anthony Harvey](https://appshunter.io/developer/1478197285) |

## What reviewers say

### Milestone Strength

[App page](https://appshunter.io/ios/app/milestone-strength/id1491831096)

Achieve your health and fitness goals with a personalized plan. This application provides a structured approach to help you reach your objectives.

**Highlights:** Personalized fitness plans, Goal achievement tracking, Health and fitness focus, Structured approach

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custom Training and Nutrition | $449.99 | one-time |


### Reaction Lab

[App page](https://appshunter.io/ios/app/reaction-lab-reflex-tests/id6757831974)

Measure and improve your response speed with a suite of scientifically-inspired tests. Track progress over time with detailed analytics and gain insights into your performance in various situations. Designed for focus and privacy, all data stays on your device.

**Highlights:** Multiple reaction time test types, Visual, audio, and haptic cues, Grip-release and motion-based tests, Dual-task and fatigue tracking, Detailed session summaries and trend charts, On-device data privacy, Offline functionality

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| React Fast Monthly | $1.99 | per month |
| React Fast Yearly | $4.99 | per year |


## Frequently asked questions

### Is Milestone Strength free?

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

### Is Reaction Lab free?

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

### Which has better reviews, Milestone Strength or Reaction Lab?

Reaction Lab is rated higher. Milestone Strength averages 4.1 out of 5 from 15 ratings, while Reaction Lab averages 5.0 from 2 ratings.

### Do Milestone Strength or Reaction Lab have ads?

Neither Milestone Strength nor Reaction Lab shows ads.

### Which is updated more often, Milestone Strength or Reaction Lab?

Milestone Strength ships an update every 21 months, and Reaction Lab every 7 months. Most recently, Milestone Strength was updated on October 25, 2026 and Reaction Lab on October 12, 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.*