# StabilityAI vs Pace Calculator

The clearest difference is update cadence: StabilityAI at fortnightly against Pace Calculator's every 3 months. StabilityAI also leads on iOS requirement (18.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. StabilityAI sells 3 in-app purchases, starting at $9.99 per month and Pace Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

StabilityAI ships an update fortnightly, Pace Calculator every 3 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | StabilityAI | Pace Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/stabilityai/id6758789490/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Freemium | — |
| Size | 43 MB | 20 MB |
| Requires iOS | **18.1** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Griffin Hunt](https://appshunter.io/developer/1795830925) | [Aaron Hampton](https://appshunter.io/developer/1409652918) |

## What reviewers say

### StabilityAI

[App page](https://appshunter.io/ios/app/stabilityai/id6758789490)

Improve mobility, reduce discomfort, and build healthier movement habits with personalized routines and guided exercises. Track your progress and receive adaptive insights to enhance your journey towards better everyday movement.

**Highlights:** Personalized mobility plans, Guided daily training routines, Progress tracking and visual dashboards, Gamified progression systems (XP, ranks), Adaptive exercise recommendations, Focus on back pain, hip, and knee discomfort

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stability Premium (Monthly) | $9.99 | per month |
| Stability Premium (Yearly) 2 | $19.99 | per year |
| Stability Premium (Yearly) | $29.99 | per year |


### Pace Calculator

[App page](https://appshunter.io/ios/app/pace-calculator-pacesmith/id6761560852)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock | $1.99 | one-time |


## Frequently asked questions

### Is StabilityAI free?

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

### Is Pace Calculator free?

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

### Do StabilityAI or Pace Calculator have ads?

Neither StabilityAI nor Pace Calculator shows ads.

### Which is updated more often, StabilityAI or Pace Calculator?

StabilityAI ships an update fortnightly, and Pace Calculator every 3 months. Most recently, StabilityAI was updated on October 31, 2026 and Pace Calculator on October 31, 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.*