# Fast Math vs VoiceBuddy Parent

The clearest difference is in-app purchases: VoiceBuddy Parent at none against Fast Math's 6. VoiceBuddy Parent also leads on iOS requirement (13.4 vs 16.0). Fast Math's advantage is update cadence (every 4 months vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. Fast Math sells 6 one-off in-app purchases. VoiceBuddy Parent asks for nothing beyond the download.

Fast Math ships an update every 4 months, VoiceBuddy Parent every 9 months. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fast Math | VoiceBuddy Parent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fast-math-tips-and-tricks/id1463433291/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Free | — |
| Size | 9 MB | 22 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mathieu Bolard](https://appshunter.io/developer/355839736) | [Click Studio LTD](https://appshunter.io/developer/1444240130) |

## What reviewers say

### Fast Math

[App page](https://appshunter.io/ios/app/fast-math-tips-and-tricks/id1463433291)

Master mental arithmetic with 59 lessons on addition, subtraction, multiplication, and division. Improve your calculation speed and accuracy through engaging training modes and friendly competition.

**Highlights:** 59 mental arithmetic lessons, Addition, subtraction, multiplication, division tips, Calculation checking techniques, Timed training mode, Game Center comparison

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Turbo Boost | $0.99 | one-time |
| Perfect Squares | $0.99 | one-time |
| Divisibility | $0.99 | one-time |
| Casting Out Nines | $0.99 | one-time |
| Casting Out Elevens | $0.99 | one-time |
| Unlock All Sections | $3.99 | one-time |


### VoiceBuddy Parent

[App page](https://appshunter.io/ios/app/voicebuddy-parent/id6504957648)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fast Math free?

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

### Is VoiceBuddy Parent free?

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

### Do Fast Math or VoiceBuddy Parent have ads?

Neither Fast Math nor VoiceBuddy Parent shows ads.

### Which is updated more often, Fast Math or VoiceBuddy Parent?

Fast Math ships an update every 4 months, and VoiceBuddy Parent every 9 months. Most recently, Fast Math was updated on October 12, 2026 and VoiceBuddy Parent on October 25, 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.*