# K vs PowerMath

The clearest difference is rating: K at 4.4 against PowerMath's 3.9. PowerMath's advantage is review sentiment (20% vs 0%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. K sells 8 in-app purchases, starting at $1.99 per 3 months and PowerMath sells 8 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

K holds the better App Store score, 4.4 against 3.9. Both are backed by a comparable volume of ratings — 142 and 179 respectively. Written reviews complicate that: 0% of K's written reviews are positive against 20% of PowerMath's, so the app with the better star average is not the one people write more warmly about.

K ships an update every 2 weeks, PowerMath fortnightly. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | K | PowerMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (142 ratings)](https://appshunter.io/ios/app/k-12-math-learning-and-practice/id6446872948/reviews)** | [3.9 (179 ratings)](https://appshunter.io/ios/app/powermath-k-12-math-learning/id6446933510/reviews) |
| Number of ratings | 142 | **179** |
| Positive reviews | 0.0% of reviews | **20.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 202 MB | 275 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEVWORLD VIETAM COMPANY LIMITED](https://appshunter.io/developer/1867412933) | [nguyen thanh](https://appshunter.io/developer/1481436893) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-12-math-learning-and-practice/id6446872948)

Master K-12 math with interactive games and practice covering algebra, calculus, and more. Features AI-powered explanations, quizzes, and a graphing calculator for on-the-go learning.

**Highlights:** Comprehensive math topics, AI-powered solver with explanations, Interactive quizzes, Smart graphing calculator, Video lessons and tips, Offline practice

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Three Months VIP | $1.99 | per 3 months |
| Learning Premium Monthly Plan | $1.99 | per month |
| One Month VIP | $4.99 | per month |
| Learning Premium HalfYear Plan | $5.99 | per 6 months |
| Learning Premium Annual Plan | $9.99 | per year |
| Six Months VIP | $24.99 | per 6 months |
| 1 Year VIP | $49.99 | per year |
| No ads Pack | $14.99 | one-time |


### PowerMath

[App page](https://appshunter.io/ios/app/powermath-k-12-math-learning/id6446933510)

This app offers interactive math practice for students in grades 1-12, covering a wide range of topics from arithmetic to calculus. It provides step-by-step solutions, engaging quizzes, and AI-powered tools to help users improve their math skills and prepare for exams.

**Highlights:** Comprehensive K-12 math curriculum, Step-by-step problem solutions, Interactive math quizzes and games, AI-powered math solver, Graphing and fraction calculators, Personalized learning exercises

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DeltaMath Premium Monthly Plan | $1.99 | per month |
| Three Months VIP | $1.99 | per 3 months |
| One Month VIP | $4.99 | per month |
| DeltaMathPremium HalfYear Plan | $5.99 | per 6 months |
| DeltaMath Premium Annual Plan | $9.99 | per year |
| Six Months VIP | $24.99 | per 6 months |
| 1 Year VIP | $49.99 | per year |
| No ads Pack | $14.99 | one-time |


## Frequently asked questions

### Is K free?

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

### Is PowerMath free?

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

### Which has better reviews, K or PowerMath?

K is rated higher. K averages 4.4 out of 5 from 142 ratings, while PowerMath averages 3.9 from 179 ratings.

### Do K or PowerMath have ads?

Both K and PowerMath show ads.

### Which is updated more often, K or PowerMath?

K ships an update every 2 weeks, and PowerMath fortnightly. Most recently, K was updated on October 15, 2026 and PowerMath on October 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.*