# Let's Work vs Speed Math Challenge

The clearest difference is update cadence: Speed Math Challenge at every 5 weeks against Let's Work's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Let's Work ships an update every 3 months, Speed Math Challenge every 5 weeks. The most recent releases landed on September 9, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | Let's Work | Speed Math Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 103 MB | 40 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [XTEND interactive GmbH](https://appshunter.io/developer/1121516677) | [Mauro Cristofoli](https://appshunter.io/developer/1672683544) |

## What reviewers say

### Let's Work

[App page](https://appshunter.io/ios/app/lets-work/id1604347551)

**Features:** macOS Compatibility

**In-app purchases:** none


### Speed Math Challenge

[App page](https://appshunter.io/ios/app/speed-math-challenge/id6562794662)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Let's Work free?

Let's Work is free to download, with no in-app purchases.

### Is Speed Math Challenge free?

Speed Math Challenge is free to download, with no in-app purchases.

### Do Let's Work or Speed Math Challenge have ads?

Neither Let's Work nor Speed Math Challenge shows ads.

### Which is updated more often, Let's Work or Speed Math Challenge?

Let's Work ships an update every 3 months, and Speed Math Challenge every 5 weeks. Most recently, Let's Work was updated on September 9, 2026 and Speed Math Challenge on May 17, 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.*