# WeightsBook vs MobyLity

The clearest difference is price: MobyLity at Free against WeightsBook's $9.99. MobyLity also leads on rating (5.0 vs 3.0) and ratings volume (57 vs 1). WeightsBook's advantage is update cadence (every 2 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

MobyLity is free to download; WeightsBook costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MobyLity holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: MobyLity has 57 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of WeightsBook's written reviews are positive against 100% of MobyLity's.

WeightsBook ships an update every 2 weeks, MobyLity every 2 months. The most recent releases landed on September 5, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | WeightsBook | MobyLity |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/weightsbook/id1542573286/reviews) | **[5.0 (57 ratings)](https://appshunter.io/ios/app/mobylity-stretching-training/id6736683100/reviews)** |
| Number of ratings | 1 | **57** |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 7 MB | 68 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Mike Hurwitz](https://appshunter.io/developer/1542573296) | [Kenneth Brattli](https://appshunter.io/developer/1773049355) |

## What reviewers say

### WeightsBook

[App page](https://appshunter.io/ios/app/weightsbook/id1542573286)

This app offers a digital alternative to traditional paper weightlifting journals. It tracks advanced training metrics and provides tools for both beginners and experienced lifters, including client management for trainers.

**Highlights:** Digital weightlifting journal, Advanced exercise tracking (RIR, RPE, partial reps), Superset and drop set support, Multiple client diaries, Workout and rest timer, Workout calendar

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

**In-app purchases:** none


### MobyLity

[App page](https://appshunter.io/ios/app/mobylity-stretching-training/id6736683100)

This app offers guided stretching and mobility routines to improve flexibility, posture, and relieve pain. It features expert-designed exercises with clear instructions, timers, and automatic routine variation to ensure a comprehensive full-body workout. Users can also create custom routines and track their progress.

**Highlights:** Guided stretching routines, Posture correction, Flexibility improvement, Pain relief exercises, Automatic routine variation, Custom routine creation, Equipment-free exercises

**In-app purchases:** none


## Frequently asked questions

### Is WeightsBook free?

WeightsBook costs $9.99, with no in-app purchases.

### Is MobyLity free?

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

### Which has better reviews, WeightsBook or MobyLity?

MobyLity is rated higher. WeightsBook averages 3.0 out of 5 from 1 ratings, while MobyLity averages 5.0 from 57 ratings.

### Do WeightsBook or MobyLity have ads?

Neither WeightsBook nor MobyLity shows ads.

### Which is updated more often, WeightsBook or MobyLity?

WeightsBook ships an update every 2 weeks, and MobyLity every 2 months. Most recently, WeightsBook was updated on September 5, 2026 and MobyLity on September 15, 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.*