# iWorld US Lite vs Math workout brain puzzle

The clearest difference is ads: iWorld US Lite at none against Math workout brain puzzle's shown. Math workout brain puzzle's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.4). On price, update cadence and in-app purchases there is nothing between them.

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

iWorld US Lite ships an update every 38 months, Math workout brain puzzle every 31 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | iWorld US Lite | Math workout brain puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/iworld-us-lite/id931222972/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Every 31 months** |
| Monetization | Free | — |
| Size | 18 MB | 10 MB |
| Requires iOS | 26.4 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lynne Bolduc](https://appshunter.io/developer/483035151) | [Merbin Joe](https://appshunter.io/developer/1281696078) |

## What reviewers say

### iWorld US Lite

[App page](https://appshunter.io/ios/app/iworld-us-lite/id931222972)

This app introduces U.S. states and capitals through interactive games and puzzles. It uses a Montessori-inspired approach with self-correcting activities to foster independent learning for young children. Printable worksheets are also available for offline reinforcement.

**Highlights:** Interactive state and capital introductions, Quiz, puzzle, and labeling activities, Montessori 3-part lesson method, Self-correcting activities, Student-controlled challenge levels, Printable worksheets

**Features:** macOS Compatibility

**In-app purchases:** none


### Math workout brain puzzle

[App page](https://appshunter.io/ios/app/math-workout-brain-puzzle/id1574342689)

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

**In-app purchases:** none


## Frequently asked questions

### Is iWorld US Lite free?

iWorld US Lite is free to download, with no in-app purchases.

### Is Math workout brain puzzle free?

Math workout brain puzzle is free to download, with no in-app purchases.

### Do iWorld US Lite or Math workout brain puzzle have ads?

Math workout brain puzzle shows ads; iWorld US Lite does not.

### Which is updated more often, iWorld US Lite or Math workout brain puzzle?

iWorld US Lite ships an update every 38 months, and Math workout brain puzzle every 31 months. Most recently, iWorld US Lite was updated on October 24, 2026 and Math workout brain puzzle on October 12, 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.*