# Rest Timer vs Liftosaur

The clearest difference is in-app purchases: Rest Timer at none against Liftosaur's 3. Rest Timer also leads on review sentiment (100% vs 90%) and iOS requirement (14.0 vs 17.0). Liftosaur's advantage is update cadence (weekly vs every 2 months) and ratings volume (401 vs 11). On price, rating, ads and device support there is nothing between them.

Both are free to download. Liftosaur sells 3 in-app purchases, starting at $4.99 per month. Rest Timer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Rest Timer against 4.9 for Liftosaur. That said, the two scores are not equally well evidenced: Liftosaur has 401 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 100% of Rest Timer's written reviews are positive against 90% of Liftosaur's.

Rest Timer ships an update every 2 months, Liftosaur weekly. The most recent releases landed on September 26, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Rest Timer | Liftosaur |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (11 ratings)](https://appshunter.io/ios/app/rest-timer-waitwaitgo/id1162311487/reviews) | [4.9 (401 ratings)](https://appshunter.io/ios/app/liftosaur-scriptable-workouts/id1661880849/reviews) |
| Number of ratings | 11 | **401** |
| Positive reviews | **100.0% of reviews** | 89.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 66 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Srdan Stanic](https://appshunter.io/developer/1162311486) | [Liftosaur, LLC](https://appshunter.io/developer/1712548690) |

## What reviewers say

### Rest Timer

[App page](https://appshunter.io/ios/app/rest-timer-waitwaitgo/id1162311487)

This app provides a simple countdown timer for rest periods during workouts. It features customizable sounds, notification-based restarts, and dynamic display support. Easily manage your workout intervals without interrupting your music or unlocking your phone.

**Highlights:** One-tap timer start, Customizable rest periods, Plays music during countdown, Restart from notification, Dynamic Island and Live Activity support, Adjust timer while running

**Features:** macOS Compatibility

**In-app purchases:** none


### Liftosaur

[App page](https://appshunter.io/ios/app/liftosaur-scriptable-workouts/id1661880849)

This app automates strength training by allowing users to build custom progressive overload programs or use pre-built routines. It tracks workouts, visualizes progress, and automatically adjusts weights and reps based on user-defined logic, making it a smart fitness companion.

**Highlights:** Automated progressive overload, Scriptable workout builder (Liftoscript), Pre-built popular lifting programs, Workout tracking and progress visualization, Rest timers and plate calculator, Body weight and measurement tracking, Cloud backup and cross-device sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $39.99 | per year |
| Lifetime Subscription | $99.99 | one-time |

**What reviewers like**

- ✨ Highly customizable workouts
- 🚀 Efficient workout tracking
- 💡 Innovative Liftoscript feature
- 💰 Incredible value (lifetime subscription)
- 🤝 Excellent developer support

**What reviewers complain about**

- 📚 Steep learning curve
- 🐛 Frequent app crashes due to updates
- 🔄 Sync issues with Apple Health
- 🐌 UI could use a polish
- 🤔 Some users find it too technical

**Reported bugs**

- App crashes frequently after updates
- Syncing issues with iPhone Health app
- App freezes on startup screen, requires reinstallation
- Changes to program not saving correctly
- Error when trying to set different warm-ups for different weeks

**Requested features**

- Dark mode option
- Ability to use kgs for barbell and lbs for dumbbells
- More intuitive UI for beginners
- Improved documentation/organization of ideas


## Frequently asked questions

### Is Rest Timer free?

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

### Is Liftosaur free?

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

### Which has better reviews, Rest Timer or Liftosaur?

Rest Timer and Liftosaur are both rated 4.9 out of 5 on the App Store, from 11 and 401 ratings respectively.

### Do Rest Timer or Liftosaur have ads?

Neither Rest Timer nor Liftosaur shows ads.

### Which is updated more often, Rest Timer or Liftosaur?

Rest Timer ships an update every 2 months, and Liftosaur weekly. Most recently, Rest Timer was updated on September 26, 2026 and Liftosaur on September 29, 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.*