# OpoTrain vs XTART FP

The clearest difference is in-app purchases: XTART FP at none against OpoTrain's 10. XTART FP also leads on update cadence (fortnightly vs every 6 months). OpoTrain's advantage is iOS requirement (11.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. OpoTrain sells 6 in-app purchases, starting at $3.99 per month. XTART FP asks for nothing beyond the download.

OpoTrain ships an update every 6 months, XTART FP fortnightly. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OpoTrain | XTART FP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Size | 19 MB | 33 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Naranco Brands](https://appshunter.io/developer/1740514007) | [Educaria Euro SLU](https://appshunter.io/developer/803891900) |

## What reviewers say

### OpoTrain

[App page](https://appshunter.io/ios/app/opotrain/id6484269070)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Suscripción Mensual | $3.99 | per month |
| Suscripción Mensual OpoTrain | $3.99 | per month |
| Subscripción Mensual | $3.99 | per month |
| Suscripción Semestral | $22.95 | per 6 months |
| Suscripción Semestral OpoTrain | $22.95 | per 6 months |
| Subscripción Semestral | $22.95 | per 6 months |


### XTART FP

[App page](https://appshunter.io/ios/app/xtart-fp-arganda/id6739420789)

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

**In-app purchases:** none


## Frequently asked questions

### Is OpoTrain free?

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

### Is XTART FP free?

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

### Do OpoTrain or XTART FP have ads?

Neither OpoTrain nor XTART FP shows ads.

### Which is updated more often, OpoTrain or XTART FP?

OpoTrain ships an update every 6 months, and XTART FP fortnightly. Most recently, OpoTrain was updated on November 4, 2026 and XTART FP on October 30, 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.*