# Numerlo vs Flash Mental Calc

The clearest difference is in-app purchases: Flash Mental Calc at none against Numerlo's 2. Numerlo's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Numerlo sells 2 in-app purchases, starting at $2.99 per month. Flash Mental Calc asks for nothing beyond the download.

## The numbers

| Metric | Numerlo | Flash Mental Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 52 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nanxi Li](https://appshunter.io/developer/1869944574) | [Wenbo Chen](https://appshunter.io/developer/1884329176) |

## What reviewers say

### Numerlo

[App page](https://appshunter.io/ios/app/numerlo-speed-math/id6757960037)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Annual Premium | $25.99 | per year |


### Flash Mental Calc

[App page](https://appshunter.io/ios/app/flash-mental-calc/id6760411165)

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

**In-app purchases:** none


## Frequently asked questions

### Is Numerlo free?

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

### Is Flash Mental Calc free?

Flash Mental Calc is free to download, with no in-app purchases.

### Do Numerlo or Flash Mental Calc have ads?

Neither Numerlo nor Flash Mental Calc shows ads.

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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.*