# Math Learner vs API653 Storage Tank Inspector

The clearest difference is ads: API653 Storage Tank Inspector at none against Math Learner's shown. Math Learner's advantage is update cadence (every 2 weeks vs every 5 months) and iOS requirement (11.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Math Learner sells 7 in-app purchases, starting at $7.99 per 7 days and API653 Storage Tank Inspector sells 1 in-app purchase, starting at $9.00 per month. Whichever you choose, the download price is not the number that matters.

Math Learner ships an update every 2 weeks, API653 Storage Tank Inspector every 5 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Math Learner | API653 Storage Tank Inspector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (121K ratings)](https://appshunter.io/ios/app/math-learner-learning-game/id1148728253/reviews)** | — |
| Number of ratings | **121K** | — |
| Positive reviews | 22.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | Subscription | — |
| Size | 258 MB | 3 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wildlife Studios](https://appshunter.io/developer/1721431484) | [Ambitionz Apps](https://appshunter.io/developer/1764753535) |

## What reviewers say

### Math Learner

[App page](https://appshunter.io/ios/app/math-learner-learning-game/id1148728253)

Engage in fun, game-based math practice with thousands of lessons and exercises. This app uses proven methodologies to build foundational skills and accelerate progress, offering an interactive experience with high-accuracy digit recognition. It provides unlimited offline access and is constantly updated with new content for all levels.

**Highlights:** Thousands of exercises, Game-based learning strategies, Unlimited online/offline use, High-accuracy digit recognition, Constant content updates, Step-by-step lessons

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Math Plus | $7.99 | per 7 days |
| Math Plus | $9.99 | per 7 days |
| Math Plus | $11.99 | per 7 days |
| Math Plus | $11.99 | per 7 days |
| Math Plus | $24.99 | per month |
| Math Plus | $39.99 | per month |
| Math Plus | $99.99 | per year |

**What reviewers like**

- 🚀 Helps improve math skills
- 👍 Interactive and engaging
- 🐶 Cute dog mascot

**What reviewers complain about**

- 💰 Expensive subscription fees
- 🔒 Paywall blocks access to full app
- 🐛 Handwriting recognition issues
- 🤔 Too basic for older students

**Reported bugs**

- Incorrect answers registered for correct work
- Persistent subscription charges even after cancellation

**Requested features**

- More advanced math content
- Option to skip beginner levels
- Free version with limited features


### API653 Storage Tank Inspector

[App page](https://appshunter.io/ios/app/api653-storage-tank-inspector/id6756944847)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| API 653 Storage Tank Inspector | $9.00 | per month |


## Frequently asked questions

### Is Math Learner free?

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

### Is API653 Storage Tank Inspector free?

API653 Storage Tank Inspector is free to download, with in-app purchases available.

### Do Math Learner or API653 Storage Tank Inspector have ads?

Math Learner shows ads; API653 Storage Tank Inspector does not.

### Which is updated more often, Math Learner or API653 Storage Tank Inspector?

Math Learner ships an update every 2 weeks, and API653 Storage Tank Inspector every 5 months. Most recently, Math Learner was updated on October 25, 2026 and API653 Storage Tank Inspector on October 18, 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.*