# Mental Maths Drill vs Chemistry Toolbox

The clearest difference is ads: Chemistry Toolbox at none against Mental Maths Drill's shown. Chemistry Toolbox also leads on update cadence (daily vs weekly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Mental Maths Drill sells 2 in-app purchases, starting at $0.99 per month and Chemistry Toolbox sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Mental Maths Drill ships an update weekly, Chemistry Toolbox daily. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Mental Maths Drill | Chemistry Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Daily** |
| Size | 8 MB | 12 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Farid Ahmad](https://appshunter.io/developer/599405155) | [Florent Breton](https://appshunter.io/developer/1184085186) |

## What reviewers say

### Mental Maths Drill

[App page](https://appshunter.io/ios/app/mental-maths-drill/id6760826612)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| 6 Months | $4.99 | per 6 months |


### Chemistry Toolbox

[App page](https://appshunter.io/ios/app/chemistry-toolbox/id6764052683)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One month subscription | $0.99 | one-time |
| Full app | $4.99 | one-time |


## Frequently asked questions

### Is Mental Maths Drill free?

Mental Maths Drill is free to download, with in-app purchases available.

### Is Chemistry Toolbox free?

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

### Do Mental Maths Drill or Chemistry Toolbox have ads?

Mental Maths Drill shows ads; Chemistry Toolbox does not.

### Which is updated more often, Mental Maths Drill or Chemistry Toolbox?

Mental Maths Drill ships an update weekly, and Chemistry Toolbox daily. Most recently, Mental Maths Drill was updated on October 25, 2026 and Chemistry Toolbox on October 19, 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.*