# Flaaash vs Numvolt

The clearest difference is update cadence: Numvolt at every 2 days against Flaaash's every 4 days. Flaaash's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Flaaash sells 2 in-app purchases, starting at $5.99 per month and Numvolt sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Flaaash ships an update every 4 days, Numvolt every 2 days. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Flaaash | Numvolt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/numvolt-mental-math-trainer/id6809142973/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 44 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SuperNeat](https://appshunter.io/developer/1678767821) | [ROMEO ILARIO FLAVIO GAMBINO](https://appshunter.io/developer/1874823696) |

## What reviewers say

### Flaaash

[App page](https://appshunter.io/ios/app/flaaash-read-and-learn-faster/id6800640075)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Annual | $49.99 | per year |


### Numvolt

[App page](https://appshunter.io/ios/app/numvolt-mental-math-trainer/id6809142973)

Enhance your mental math skills with a comprehensive trainer offering 15 topics and 150 levels each. Learn fastest calculation methods, track progress, and compete globally. Features include daily challenges, duels, and a home screen widget.

**Highlights:** 15 topics, 150 levels each, Fastest calculation method explanations, Daily challenges and sprints, Global ladder rankings, Two-player duels, Progress tracking and home screen widget

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Numvolt Pro | $8.99 | one-time |


## Frequently asked questions

### Is Flaaash free?

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

### Is Numvolt free?

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

### Do Flaaash or Numvolt have ads?

Neither Flaaash nor Numvolt shows ads.

### Which is updated more often, Flaaash or Numvolt?

Flaaash ships an update every 4 days, and Numvolt every 2 days. Most recently, Flaaash was updated on October 8, 2026 and Numvolt on October 15, 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.*