# Rack Strength vs LiftSync

The clearest difference is in-app purchases: LiftSync at none against Rack Strength's 7. LiftSync also leads on device support (3 vs 1). Rack Strength's advantage is update cadence (every 9 days vs every 3 weeks). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Rack Strength sells 7 in-app purchases, starting at $8.99 per month. LiftSync asks for nothing beyond the download.

Rack Strength ships an update every 9 days, LiftSync every 3 weeks. The most recent releases landed on August 31, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Rack Strength | LiftSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (7 ratings)](https://appshunter.io/ios/app/rack-strength/id6760419667/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 44 MB | 15 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Aviv Noah](https://appshunter.io/developer/1884369241) | [Philipp Winkler](https://appshunter.io/developer/1891425158) |

## What reviewers say

### Rack Strength

[App page](https://appshunter.io/ios/app/rack-strength/id6760419667)

This app transforms your watch into an intelligent strength training tool. It offers real-time wrist integration, per-muscle recovery tracking, and personalized pre-workout readiness briefs. It learns your body's response to training to provide smarter recommendations over time.

**Highlights:** Real-time watch sync, Per-muscle group recovery tracking, Pre-workout readiness briefs, Automatic PR detection, Live heart rate monitoring, CSV data export, Apple Health integration

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $8.99 | per month |
| Annual Pro | $54.99 | per year |
| Training Audit | $1.49 | one-time |
| Training Audit 3-Pack | $3.99 | one-time |
| Lifetime Pro | $89.99 | one-time |
| Rack Charter Lifetime | $119.99 | one-time |
| Lifetime Pro | $149.99 | one-time |


### LiftSync

[App page](https://appshunter.io/ios/app/liftsync-strength-training/id6762365734)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Rack Strength free?

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

### Is LiftSync free?

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

### Do Rack Strength or LiftSync have ads?

Neither Rack Strength nor LiftSync shows ads.

### Which is updated more often, Rack Strength or LiftSync?

Rack Strength ships an update every 9 days, and LiftSync every 3 weeks. Most recently, Rack Strength was updated on August 31, 2026 and LiftSync on September 9, 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.*