# Train Track vs ScolioSense

The clearest difference is update cadence: ScolioSense at every 5 weeks against Train Track's every 53 months. Train Track's advantage is iOS requirement (16.5 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Train Track ships an update every 53 months, ScolioSense every 5 weeks. The most recent releases landed on May 16, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | Train Track | ScolioSense |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 53 months | **Every 5 weeks** |
| Size | 3 MB | 98 MB |
| Requires iOS | **16.5** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [NIKOLAOS GALANOS](https://appshunter.io/developer/1453989986) | [Aidplex](https://appshunter.io/developer/1534689028) |

## What reviewers say

### Train Track

[App page](https://appshunter.io/ios/app/train-track/id1516463419)

**Features:** macOS Compatibility

**In-app purchases:** none


### ScolioSense

[App page](https://appshunter.io/ios/app/scoliosense/id1534689026)

**In-app purchases:** none


## Frequently asked questions

### Is Train Track free?

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

### Is ScolioSense free?

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

### Do Train Track or ScolioSense have ads?

Neither Train Track nor ScolioSense shows ads.

### Which is updated more often, Train Track or ScolioSense?

Train Track ships an update every 53 months, and ScolioSense every 5 weeks. Most recently, Train Track was updated on May 16, 2026 and ScolioSense on July 7, 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.*