# 1Question Screen Time Control vs Math Lock

The clearest difference is rating: 1Question Screen Time Control at 3.0 against Math Lock's 1.0. 1Question Screen Time Control also leads on review sentiment (40% vs 0%) and in-app purchases (none vs 2). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Math Lock sells 2 in-app purchases, starting at $2.99 per month. 1Question Screen Time Control asks for nothing beyond the download.

1Question Screen Time Control holds the better App Store score, 3.0 against 1.0. That said, the two scores are not equally well evidenced: 1Question Screen Time Control has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 40% of 1Question Screen Time Control's written reviews are positive against 0% of Math Lock's.

1Question Screen Time Control ships an update fortnightly, Math Lock every 3 weeks. The most recent releases landed on July 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 1Question Screen Time Control | Math Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (20 ratings)](https://appshunter.io/ios/app/1question-screen-time-control/id1554048383/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/math-lock/id6748890228/reviews) |
| Number of ratings | **20** | 1 |
| Positive reviews | **40.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 80 MB | 118 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [1Question Pty Ltd](https://appshunter.io/developer/1554048385) | [SPARKHIVE TECH LTD](https://appshunter.io/developer/1585011311) |

## What reviewers say

### 1Question Screen Time Control

[App page](https://appshunter.io/ios/app/1question-screen-time-control/id1554048383)

This app transforms screen time into a productive learning experience for children. Kids earn minutes for their favorite apps by completing engaging educational mini-games and video lessons. Parents gain control over screen time ratios and receive progress reports.

**Highlights:** Earn screen time through mini-games, Micro-learning video lessons, Customized learning pathways, Parental control over app access, Study-to-playtime ratio adjustment, Real-time progress reports

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 1Question Screen Time Control free?

1Question Screen Time Control is free to download, with no in-app purchases.

### Is Math Lock free?

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

### Which has better reviews, 1Question Screen Time Control or Math Lock?

1Question Screen Time Control is rated higher. 1Question Screen Time Control averages 3.0 out of 5 from 20 ratings, while Math Lock averages 1.0 from 1 ratings.

### Do 1Question Screen Time Control or Math Lock have ads?

Both 1Question Screen Time Control and Math Lock show ads.

### Which is updated more often, 1Question Screen Time Control or Math Lock?

1Question Screen Time Control ships an update fortnightly, and Math Lock every 3 weeks. Most recently, 1Question Screen Time Control was updated on July 6, 2026 and Math Lock on September 9, 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.*