# Flexion vs Soln

The clearest difference is iOS requirement: Flexion at 15.1 against Soln's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Flexion sells 2 in-app purchases, starting at $9.99 per month and Soln sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Flexion ships an update fortnightly, Soln every 3 weeks. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Flexion | Soln |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/flexion-ai-personal-trainer/id6751009469/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Agastya Ahluwalia](https://appshunter.io/developer/1833107018) | [Nan Yu](https://appshunter.io/developer/1559044036) |

## What reviewers say

### Flexion

[App page](https://appshunter.io/ios/app/flexion-ai-personal-trainer/id6751009469)

Analyze your workout form with AI-powered video feedback and chat with a virtual coach for personalized training and nutrition advice. Track progress, log meals, and prevent injuries with detailed insights.

**Highlights:** AI video form analysis, Conversational workout logging, Nutrition tracking, Personalized coaching, Progress insights, Multiple coach personalities

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $9.99 | per month |
| Premium Yearly | $59.99 | per year |


### Soln

[App page](https://appshunter.io/ios/app/soln/id6772215173)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Soln | $5.99 | one-time |


## Frequently asked questions

### Is Flexion free?

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

### Is Soln free?

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

### Do Flexion or Soln have ads?

Neither Flexion nor Soln shows ads.

### Which is updated more often, Flexion or Soln?

Flexion ships an update fortnightly, and Soln every 3 weeks. Most recently, Flexion was updated on October 24, 2026 and Soln on October 13, 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.*