# 1st Grade Math Challenge vs K

The clearest difference is ads: 1st Grade Math Challenge at none against K's shown. 1st Grade Math Challenge also leads on rating (4.9 vs 4.5) and iOS requirement (13.0 vs 15.0). K's advantage is update cadence (fortnightly vs every 7 months) and ratings volume (133 vs 7). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. 1st Grade Math Challenge sells 1 one-off in-app purchase and K sells 8 in-app purchases, starting at $1.99 per 3 months. Whichever you choose, the download price is not the number that matters.

1st Grade Math Challenge holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: K has 133 ratings behind it against 7, so its average is the more settled of the two.

1st Grade Math Challenge ships an update every 7 months, K fortnightly. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 1st Grade Math Challenge | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/1st-grade-math-challenge/id1567478595/reviews)** | [4.5 (133 ratings)](https://appshunter.io/ios/app/k-12-math-learning-and-practice/id6446872948/reviews) |
| Number of ratings | 7 | **133** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 36 MB | 235 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IT365 Solutions Inc](https://appshunter.io/developer/1531416759) | [DEVWORLD VIETAM COMPANY LIMITED](https://appshunter.io/developer/1867412933) |

## What reviewers say

### 1st Grade Math Challenge

[App page](https://appshunter.io/ios/app/1st-grade-math-challenge/id1567478595)

Engage first graders with fun math questions and track their progress. Earn and share certificates of achievement. Challenge friends to friendly math competitions.

**Highlights:** Fun math questions for first graders, Create and share certificates, Challenge friends, Step-by-step solutions, Progress tracking

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all Ads from Math 1 | $0.99 | one-time |


### 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 |


## Frequently asked questions

### Is 1st Grade Math Challenge free?

1st Grade Math Challenge is free to download, with in-app purchases available.

### Is K free?

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

### Which has better reviews, 1st Grade Math Challenge or K?

1st Grade Math Challenge is rated higher. 1st Grade Math Challenge averages 4.9 out of 5 from 7 ratings, while K averages 4.5 from 133 ratings.

### Do 1st Grade Math Challenge or K have ads?

K shows ads; 1st Grade Math Challenge does not.

### Which is updated more often, 1st Grade Math Challenge or K?

1st Grade Math Challenge ships an update every 7 months, and K fortnightly. Most recently, 1st Grade Math Challenge was updated on June 1, 2026 and K on September 24, 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.*