# Subtraction Math Trainer vs Learn Spanish by FluenTech

The clearest difference is price: Learn Spanish by FluenTech at Free against Subtraction Math Trainer's $2.99. Learn Spanish by FluenTech also leads on update cadence (every 3 weeks vs every 34 months). Subtraction Math Trainer's advantage is in-app purchases (none vs 5) and iOS requirement (12.0 vs 15.1). On ads and device support there is nothing between them.

Learn Spanish by FluenTech is free to download; Subtraction Math Trainer costs $2.99 up front. Learn Spanish by FluenTech sells 5 in-app purchases, starting at $3.99 per month. Subtraction Math Trainer asks for nothing beyond the download.

Subtraction Math Trainer ships an update every 34 months, Learn Spanish by FluenTech every 3 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Subtraction Math Trainer | Learn Spanish by FluenTech |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 weeks** |
| Size | 18 MB | 54 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergey Malugin](https://appshunter.io/developer/562782409) | [Omer COSKUN](https://appshunter.io/developer/1830025952) |

## What reviewers say

### Subtraction Math Trainer

[App page](https://appshunter.io/ios/app/subtraction-math-trainer/id1197851863)

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn Spanish by FluenTech

[App page](https://appshunter.io/ios/app/learn-spanish-by-fluentech/id6759160874)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Subscription | $3.99 | per month |
| Weekly Premium Subscription | $4.99 | per 7 days |
| Annual Premium Subscription | $24.99 | per year |
| Annual Premium Subscription | $29.99 | per year |
| Annual Premium Subscription | $49.99 | per year |


## Frequently asked questions

### Is Subtraction Math Trainer free?

Subtraction Math Trainer costs $2.99, with no in-app purchases.

### Is Learn Spanish by FluenTech free?

Learn Spanish by FluenTech is free to download, with in-app purchases available.

### Do Subtraction Math Trainer or Learn Spanish by FluenTech have ads?

Neither Subtraction Math Trainer nor Learn Spanish by FluenTech shows ads.

### Which is updated more often, Subtraction Math Trainer or Learn Spanish by FluenTech?

Subtraction Math Trainer ships an update every 34 months, and Learn Spanish by FluenTech every 3 weeks. Most recently, Subtraction Math Trainer was updated on October 31, 2026 and Learn Spanish by FluenTech on October 28, 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.*