# Ultimateinstability vs Simple PRs (Personal Records)

The clearest difference is in-app purchases: Ultimateinstability at none against Simple PRs (Personal Records)'s 2. Ultimateinstability also leads on ratings volume (9 vs 1). Simple PRs (Personal Records)'s advantage is rating (5.0 vs 4.6). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Simple PRs (Personal Records) sells 2 in-app purchases, starting at $1.99 per month. Ultimateinstability asks for nothing beyond the download.

Simple PRs (Personal Records) holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Ultimateinstability has 9 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Ultimateinstability | Simple PRs (Personal Records) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/ultimateinstability/id1398788985/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-prs-personal-records/id6748154167/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | **Free** | Free with in-app purchases |
| Size | 210 MB | 22 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Ultimateinstability B.V.](https://appshunter.io/developer/1398788984) | [Luiz Mazini](https://appshunter.io/developer/1611229461) |

## What reviewers say

### Ultimateinstability

[App page](https://appshunter.io/ios/app/ultimateinstability/id1398788985)

Access over 2000 animated exercises and pre-built workout programs using specialized equipment. Connect with a community of professionals and sync your workouts with Apple Health.

**Highlights:** 180+ animated exercises, 2000+ 3D animated exercises, Pre-built workout programs, UI-community for professionals, Sync with Apple Health App

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple PRs (Personal Records)

[App page](https://appshunter.io/ios/app/simple-prs-personal-records/id6748154167)

Easily track your personal bests in weightlifting, CrossFit, and other fitness activities. Focus on your progress with a clean, fast interface. Share your achievements and unlock unlimited records with premium.

**Highlights:** Track lifts, workouts, and custom PRs, Calculate 1RM percentages automatically, Switch between kg and lb, Clean and fast interface, Optional sync via Supabase, Share PRs to Instagram Stories

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Ultimateinstability free?

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

### Is Simple PRs (Personal Records) free?

Simple PRs (Personal Records) is free to download, with in-app purchases available.

### Which has better reviews, Ultimateinstability or Simple PRs (Personal Records)?

Simple PRs (Personal Records) is rated higher. Ultimateinstability averages 4.6 out of 5 from 9 ratings, while Simple PRs (Personal Records) averages 5.0 from 1 ratings.

### Do Ultimateinstability or Simple PRs (Personal Records) have ads?

Neither Ultimateinstability nor Simple PRs (Personal Records) shows ads.

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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.*