# Muscle Memory Lifting vs Fast Slow

The clearest difference is monetization model: Fast Slow at free against Muscle Memory Lifting's freemium. Fast Slow also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (36 vs 3). Muscle Memory Lifting's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Muscle Memory Lifting sells 5 in-app purchases, starting at $2.99 per month and Fast Slow sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Muscle Memory Lifting against 5.0 for Fast Slow. That said, the two scores are not equally well evidenced: Fast Slow has 36 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Muscle Memory Lifting ships an update every 2 months, Fast Slow every 2 weeks. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Muscle Memory Lifting | Fast Slow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/muscle-memory-lifting/id6740463469/reviews) | [5.0 (36 ratings)](https://appshunter.io/ios/app/fast-slow-fasting-tracker/id6749188352/reviews) |
| Number of ratings | 3 | **36** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Freemium | **Free** |
| Size | 70 MB | 23 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Garcia Embedded Solutions](https://appshunter.io/developer/1790092775) | [Zan Cerne](https://appshunter.io/developer/1747198932) |

## What reviewers say

### Muscle Memory Lifting

[App page](https://appshunter.io/ios/app/muscle-memory-lifting/id6740463469)

This AI-powered workout companion offers personalized coaching to help users achieve fitness goals efficiently. It provides exercise guidance, rest timers, and advanced tracking features for both beginners and experienced lifters.

**Highlights:** AI coaching for optimal gains, Offline workout support, Exercise guides and form queues, Rest timer, Superset and drop set tracking, Custom muscle and equipment types

**Features:** Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Membership | $2.99 | per month |
| Yearly subscription | $29.99 | per year |
| 100 AI Credits | $0.99 | one-time |
| 250 AI Credits | $1.99 | one-time |
| 500 AI Credits | $3.99 | one-time |


### Fast Slow

[App page](https://appshunter.io/ios/app/fast-slow-fasting-tracker/id6749188352)

Understand your body's metabolic changes during fasting with a visual timeline. This free app guides you through different fasting zones, from digestion to deep ketosis, and offers customizable schedules and smart notifications. It provides stats, streaks, and widgets for easy progress tracking.

**Highlights:** Fasting timer with visual timeline, 6 customizable fasting schedules, 5 distinct fasting zones explained, Smart notifications for fasting windows, Stats, streaks, and trends tracking, Home and Lock Screen widgets, Siri Shortcuts integration

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Legacy | $1.99 | per 7 days |
| Legacy - Yearly | $12.99 | per year |
| Buy Me a Coffee | $2.99 | one-time |
| You're Amazing | $9.99 | one-time |


## Frequently asked questions

### Is Muscle Memory Lifting free?

Muscle Memory Lifting is free to download, with in-app purchases available.

### Is Fast Slow free?

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

### Which has better reviews, Muscle Memory Lifting or Fast Slow?

Muscle Memory Lifting and Fast Slow are both rated 5.0 out of 5 on the App Store, from 3 and 36 ratings respectively.

### Do Muscle Memory Lifting or Fast Slow have ads?

Neither Muscle Memory Lifting nor Fast Slow shows ads.

### Which is updated more often, Muscle Memory Lifting or Fast Slow?

Muscle Memory Lifting ships an update every 2 months, and Fast Slow every 2 weeks. Most recently, Muscle Memory Lifting was updated on October 10, 2026 and Fast Slow on October 17, 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.*