# Math Lock vs Senwitt

The clearest difference is update cadence: Senwitt at every 5 days against Math Lock's every 3 weeks. Senwitt also leads on iOS requirement (13.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Math Lock sells 2 in-app purchases, starting at $2.99 per month and Senwitt sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Math Lock ships an update every 3 weeks, Senwitt every 5 days. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Math Lock | Senwitt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/math-lock/id6748890228/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 118 MB | 166 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SPARKHIVE TECH LTD](https://appshunter.io/developer/1585011311) | [Stuvio Digital](https://appshunter.io/developer/1877656645) |

## What reviewers say

### Math Lock

[App page](https://appshunter.io/ios/app/math-lock/id6748890228)

This app transforms screen time into a learning opportunity for children aged 4-15. It requires solving math problems to unlock the device and offers guided practice, a private tutor, and brain training exercises. Parents can manage screen time while children engage with a fun, curriculum-based math experience.

**Highlights:** Math challenges to unlock device, Curriculum-based math for ages 4-15, Personalized questions by level, Private Tutor with photo solving, Brain training activities, Parental controls

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Lock Premium | $2.99 | per month |
| Math Lock Premium Yearly | $29.99 | per year |


### Senwitt

[App page](https://appshunter.io/ios/app/senwitt-daily-brain-exercise/id6767172038)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Senwitt Unlimited | $1.99 | per month |


## Frequently asked questions

### Is Math Lock free?

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

### Is Senwitt free?

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

### Do Math Lock or Senwitt have ads?

Both Math Lock and Senwitt show ads.

### Which is updated more often, Math Lock or Senwitt?

Math Lock ships an update every 3 weeks, and Senwitt every 5 days. Most recently, Math Lock was updated on October 12, 2026 and Senwitt on October 24, 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.*