# Practice Fast Math vs UpDraft Rx

The clearest difference is in-app purchases: Practice Fast Math at none against UpDraft Rx's 1. UpDraft Rx's advantage is update cadence (every 3 days vs every 10 months) and iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. UpDraft Rx sells 1 one-off in-app purchase. Practice Fast Math asks for nothing beyond the download.

Practice Fast Math ships an update every 10 months, UpDraft Rx every 3 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Practice Fast Math | UpDraft Rx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 days** |
| Size | 41 MB | 316 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Up One Story](https://appshunter.io/developer/443919203) | [Dallas Scott](https://appshunter.io/developer/1798285637) |

## What reviewers say

### Practice Fast Math

[App page](https://appshunter.io/ios/app/practice-fast-math/id6755569741)

**Features:** macOS Compatibility

**In-app purchases:** none


### UpDraft Rx

[App page](https://appshunter.io/ios/app/updraft-rx/id6792164071)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Tracks | $19.99 | one-time |


## Frequently asked questions

### Is Practice Fast Math free?

Practice Fast Math is free to download, with no in-app purchases.

### Is UpDraft Rx free?

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

### Do Practice Fast Math or UpDraft Rx have ads?

Neither Practice Fast Math nor UpDraft Rx shows ads.

### Which is updated more often, Practice Fast Math or UpDraft Rx?

Practice Fast Math ships an update every 10 months, and UpDraft Rx every 3 days. Most recently, Practice Fast Math was updated on October 24, 2026 and UpDraft Rx on October 11, 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.*