# JOJO Math and Reading vs Math Lock

The clearest difference is review sentiment: JOJO Math and Reading at 96% against Math Lock's 0%. JOJO Math and Reading also leads on rating (4.9 vs 1.0) and ads (none vs shown). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. JOJO Math and Reading sells 10 in-app purchases, starting at $40.00 per month and Math Lock sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

JOJO Math and Reading holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: JOJO Math and Reading has 41 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 96% of JOJO Math and Reading's written reviews are positive against 0% of Math Lock's.

JOJO Math and Reading ships an update every 9 days, Math Lock every 3 weeks. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | JOJO Math and Reading | Math Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (41 ratings)](https://appshunter.io/ios/app/jojo-math-and-reading/id6474731348/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/math-lock/id6748890228/reviews) |
| Number of ratings | **41** | 1 |
| Positive reviews | **96.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 195 MB | 118 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [SMART BEAN TECHNOLOGY PTE. LTD.](https://appshunter.io/developer/1677289065) | [SPARKHIVE TECH LTD](https://appshunter.io/developer/1585011311) |

## What reviewers say

### JOJO Math and Reading

[App page](https://appshunter.io/ios/app/jojo-math-and-reading/id6474731348)

This app helps children aged 4-10 improve math skills, focus, and build consistent practice habits through handwriting-based exercises. It offers engaging games and personalized levels to make learning enjoyable and effective.

**Highlights:** Handwriting-based math practice, Concentration games with timers and encouragement, Covers addition, subtraction, multiplication, and word problems, Personalized learning levels, Built-in rewards and math games, Focus on building daily routines

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $40.00 | per month |
| Monthly Plan | $40.00 | per month |
| Quarterly Plan | $60.00 | per 3 months |
| Quarterly Plan | $60.00 | per 3 months |
| Quarterly Plan (2 Learners) | $109.00 | per 3 months |
| Quarterly Plan (3 Learners) | $161.99 | per 3 months |
| Annual Plan | $189.99 | per year |
| 14-Day Learning Challenge | $4.99 | one-time |
| 21-Day Learning Challenge | $5.99 | one-time |
| 30-Day Learning Challenge | $9.99 | one-time |


### 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 JOJO Math and Reading free?

JOJO Math and Reading is free to download, with in-app purchases available.

### Is Math Lock free?

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

### Which has better reviews, JOJO Math and Reading or Math Lock?

JOJO Math and Reading is rated higher. JOJO Math and Reading averages 4.9 out of 5 from 41 ratings, while Math Lock averages 1.0 from 1 ratings.

### Do JOJO Math and Reading or Math Lock have ads?

Math Lock shows ads; JOJO Math and Reading does not.

### Which is updated more often, JOJO Math and Reading or Math Lock?

JOJO Math and Reading ships an update every 9 days, and Math Lock every 3 weeks. Most recently, JOJO Math and Reading was updated on September 22, 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.*