# Timer vs Math Shield

The clearest difference is update cadence: Math Shield at every 2 days against Timer's every 5 days. Timer's advantage is iOS requirement (16 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Timer sells 3 in-app purchases, starting at $1.99 per month and Math Shield sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Timer ships an update every 5 days, Math Shield every 2 days. Both last shipped on September 20, 2026.

## The numbers

| Metric | Timer | Math Shield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Size | 19 MB | 20 MB |
| Requires iOS | **16** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vignesh Viswanathan](https://appshunter.io/developer/1687983437) | [Vinoth Ramajeyam](https://appshunter.io/developer/1665205517) |

## What reviewers say

### Timer

[App page](https://appshunter.io/ios/app/timer-timelo/id6757974583)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Annually | $9.99 | per year |
| Pro Lifetime | $14.99 | one-time |


### Math Shield

[App page](https://appshunter.io/ios/app/math-shield-focus-and-unlock/id6774190945)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Shield Pro Monthly | $3.99 | per month |
| Math Shield Pro Yearly | $12.99 | per year |
| Math Shield Pro - Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Timer free?

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

### Is Math Shield free?

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

### Do Timer or Math Shield have ads?

Neither Timer nor Math Shield shows ads.

### Which is updated more often, Timer or Math Shield?

Timer ships an update every 5 days, and Math Shield every 2 days. Most recently, Timer was updated on September 20, 2026 and Math Shield on September 20, 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.*