# Johnny Grammar Word Challenge vs Math Rocket Lab

The clearest difference is ads: Math Rocket Lab at none against Johnny Grammar Word Challenge's shown. Math Rocket Lab also leads on monetization model (free vs free with in-app purchases) and rating (5.0 vs 4.7). Johnny Grammar Word Challenge's advantage is ratings volume (16K vs 2) and iOS requirement (15.6 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Math Rocket Lab holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Johnny Grammar Word Challenge has 16K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 84% of Johnny Grammar Word Challenge's written reviews are positive against 100% of Math Rocket Lab's.

## The numbers

| Metric | Johnny Grammar Word Challenge | Math Rocket Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (16K ratings)](https://appshunter.io/ios/app/johnny-grammar-word-challenge/id432488501/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/math-rocket-lab/id6772945198/reviews)** |
| Number of ratings | **16K** | 2 |
| Positive reviews | 84.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 70 MB | 18 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [British Council](https://appshunter.io/developer/368179040) | [Aleksandr Tsebrii](https://appshunter.io/developer/629750507) |

## What reviewers say

### Johnny Grammar Word Challenge

[App page](https://appshunter.io/ios/app/johnny-grammar-word-challenge/id432488501)

Test your English spelling, vocabulary, and grammar in a fast-paced 60-second quiz. Choose from three difficulty levels and categories, and compete globally. Earn badges and learn from feedback on incorrect answers.

**Highlights:** 60-second timed quizzes, 3 difficulty levels, 3 categories (Words, Grammar, Spelling), 10 specific topics, Global leaderboard, Badge system, Feedback on incorrect answers

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Helpful for learning English
- 💡 Variety of challenges (easy, medium, hard)
- 👍 Improves grammar and spelling skills
- 👍 Enjoyable and addictive

**What reviewers complain about**

- 🐛 Bugs and glitches (incorrect answers, login issues)
- 💸 Too many ads
- 🕰️ Time limit too short
- 🔍 Small font size
- 🔁 Repeated questions

**Reported bugs**

- Incorrect answers marked as wrong
- Retry and home buttons not working
- Login issues, forced to sign in as guest
- Leaderboard takes too long to load
- Ads appearing back-to-back

**Requested features**

- Add pronunciation feature
- Provide explanations for incorrect answers
- Extend time limit for questions
- Allow customization of font size
- Introduce more advanced levels


### Math Rocket Lab

[App page](https://appshunter.io/ios/app/math-rocket-lab/id6772945198)

This app offers focused daily practice to strengthen elementary arithmetic skills. It turns math exercises into engaging sessions, building speed, accuracy, and confidence in addition, subtraction, multiplication, and division. Enjoy a clean, distraction-free learning experience with instant feedback and progress tracking.

**Highlights:** Practice addition, subtraction, multiplication, division, Multiple difficulty levels, Customizable session length, Instant feedback and results, Progress tracking and statistics, Daily math facts, Distraction-free design

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

**In-app purchases:** none


## Frequently asked questions

### Is Johnny Grammar Word Challenge free?

Johnny Grammar Word Challenge is free to download, with no in-app purchases.

### Is Math Rocket Lab free?

Math Rocket Lab is free to download, with no in-app purchases.

### Which has better reviews, Johnny Grammar Word Challenge or Math Rocket Lab?

Math Rocket Lab is rated higher. Johnny Grammar Word Challenge averages 4.7 out of 5 from 16K ratings, while Math Rocket Lab averages 5.0 from 2 ratings.

### Do Johnny Grammar Word Challenge or Math Rocket Lab have ads?

Johnny Grammar Word Challenge shows ads; Math Rocket Lab does not.

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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.*