# Categories Learning Center vs Kilowatt Krush

The clearest difference is price: Kilowatt Krush at Free against Categories Learning Center's $11.99. Kilowatt Krush also leads on update cadence (every 2 months vs every 14 months) and ratings volume (86 vs 5). Categories Learning Center's advantage is rating (4.6 vs 4.3) and review sentiment (93% vs 76%). On ads, in-app purchases and iOS requirement there is nothing between them.

Kilowatt Krush is free to download; Categories Learning Center costs $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Categories Learning Center holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Kilowatt Krush has 86 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 93% of Categories Learning Center's written reviews are positive against 76% of Kilowatt Krush's.

Categories Learning Center ships an update every 14 months, Kilowatt Krush every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Categories Learning Center | Kilowatt Krush |
| --- | --- | --- |
| Price | $11.99 | **Free** |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/categories-learning-center/id496646536/reviews)** | [4.3 (86 ratings)](https://appshunter.io/ios/app/kilowatt-krush/id1425034972/reviews) |
| Number of ratings | 5 | **86** |
| Positive reviews | **92.6% of reviews** | 76.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 69 MB | 216 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Smarty Ears](https://appshunter.io/developer/348779167) | [Duke Energy](https://appshunter.io/developer/1299896621) |

## What reviewers say

### Categories Learning Center

[App page](https://appshunter.io/ios/app/categories-learning-center/id496646536)

Enhance vocabulary, comprehension, and critical thinking with interactive categorization exercises. Developed by speech-language pathologists, this app offers structured practice for learners of all ages to identify, group, and label objects, supporting language development and memory.

**Highlights:** Interactive categorization practice, Build vocabulary and comprehension, Develop critical thinking skills, Multi-level difficulty, Multi-player mode (up to 4 users), Progress tracking and reporting, Evidence-based activities

**Features:** macOS Compatibility

**In-app purchases:** none


### Kilowatt Krush

[App page](https://appshunter.io/ios/app/kilowatt-krush/id1425034972)

Engage in a series of fun games to unlock cards and build your virtual house and background. Learn about energy conservation, safety, and products while playing. This app is designed to complement an in-school energy education program.

**Highlights:** Unlock cards by winning games, Build and customize houses, Learn about energy conservation, Energy safety education, Interactive arcade games, Earn points for in-game rewards

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Categories Learning Center free?

Categories Learning Center costs $11.99, with no in-app purchases.

### Is Kilowatt Krush free?

Kilowatt Krush is free to download, with no in-app purchases.

### Which has better reviews, Categories Learning Center or Kilowatt Krush?

Categories Learning Center is rated higher. Categories Learning Center averages 4.6 out of 5 from 5 ratings, while Kilowatt Krush averages 4.3 from 86 ratings.

### Do Categories Learning Center or Kilowatt Krush have ads?

Neither Categories Learning Center nor Kilowatt Krush shows ads.

### Which is updated more often, Categories Learning Center or Kilowatt Krush?

Categories Learning Center ships an update every 14 months, and Kilowatt Krush every 2 months. Most recently, Categories Learning Center was updated on November 1, 2026 and Kilowatt Krush on November 2, 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.*