# trainn vs Unseen Bio

The clearest difference is in-app purchases: Unseen Bio at none against trainn's 3. Unseen Bio also leads on ads (none vs shown). trainn's advantage is update cadence (every 4 weeks vs every 12 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. trainn sells 3 in-app purchases, starting at $9.99 per month. Unseen Bio asks for nothing beyond the download.

trainn ships an update every 4 weeks, Unseen Bio every 12 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | trainn | Unseen Bio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Every 12 months |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 30 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sarah Louise Bjornsten](https://appshunter.io/developer/1787001282) | [Unseen Biometrics ApS](https://appshunter.io/developer/1657718298) |

## What reviewers say

### trainn

[App page](https://appshunter.io/ios/app/trainn-personalised-workouts/id1555213815)

This app offers personalized workout plans and healthy habit guidance designed by a personal trainer. It adapts to your fitness level and goals, providing exercise demos, progress tracking, and live chat support for motivation and advice.

**Highlights:** Personalized workouts tailored to goals and level, Adaptive training plans, Weekly goals and healthy habits, Progress tracker with personalized tips, Live chat with personal trainer, Workout challenges and fitness tests

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Quarterly | $24.99 | per 3 months |
| Annually | $69.99 | per year |


### Unseen Bio

[App page](https://appshunter.io/ios/app/unseen-bio/id6444896397)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is trainn free?

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

### Is Unseen Bio free?

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

### Do trainn or Unseen Bio have ads?

trainn shows ads; Unseen Bio does not.

### Which is updated more often, trainn or Unseen Bio?

trainn ships an update every 4 weeks, and Unseen Bio every 12 months. Most recently, trainn was updated on October 24, 2026 and Unseen Bio on October 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.*