# K vs ACHIEVERS

The clearest difference is ads: ACHIEVERS at none against K's shown. K's advantage is update cadence (every 2 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. K sells 8 in-app purchases, starting at $1.99 per 3 months and ACHIEVERS sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

K ships an update every 2 weeks, ACHIEVERS every 3 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | K | ACHIEVERS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (142 ratings)](https://appshunter.io/ios/app/k-12-math-learning-and-practice/id6446872948/reviews)** | — |
| Number of ratings | **142** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 202 MB | 145 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEVWORLD VIETAM COMPANY LIMITED](https://appshunter.io/developer/1867412933) | [PAVI PUBLICATION PRIVATE LIMITED](https://appshunter.io/developer/1790866777) |

## 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 |


### ACHIEVERS

[App page](https://appshunter.io/ios/app/achievers/id6449173106)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - 799 | $7.99 | one-time |
| Package - 899 | $8.99 | one-time |
| Package - 999 | $9.99 | one-time |
| Package - 1099 | $9.99 | one-time |
| Package - 1199 | $11.99 | one-time |
| Package - 1249 | $11.99 | one-time |
| Package - 1299 | $12.99 | one-time |
| Package - 1399 | $12.99 | one-time |
| Package - 1499 | $14.99 | one-time |
| Package - 1599 | $14.99 | one-time |


## Frequently asked questions

### Is K free?

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

### Is ACHIEVERS free?

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

### Do K or ACHIEVERS have ads?

K shows ads; ACHIEVERS does not.

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

K ships an update every 2 weeks, and ACHIEVERS every 3 months. Most recently, K was updated on October 15, 2026 and ACHIEVERS on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*