K vs ACHIEVERS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
K
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.
- Comprehensive math topics
- AI-powered solver with explanations
- Interactive quizzes
- Smart graphing calculator
- Video lessons and tips
- Offline practice
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Master All Grade Math with us! Take your math skills to the next level with our interactive and engaging learning experience. Whether you're preparing for exams or just want to strengthen your knowledge, this app has everything you need! Why Choose Our App? - Comprehensive Topics – Cover algebra, calculus, trigonometry, probability, and more. - AI-Powered Solver – Get instant solutions and step-by-step explanations. - Interactive Quizzes – Test your knowledge with fun and challenging exercises. - Smart Graphing Calculator – Solve complex equations with ease. - Video Lessons & Tips – Learn from expert instructors anytime, anywhere. - Practice Anytime – Offline access ensures you can study on the go. Download now and unlock the power of math mastery! Terms of use: https://thanhbkap.github.io/M4U-Term-And-Use/ Happy learning!
ACHIEVERS
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Get Personalized Learning Outcomes for everyone. An in-depth performance analysis, where you can know your strong and weak points, your all India rank, your state rank etc. You will also get a virtual tutor who is completely dedicated to bringing out the best in you. It will prioritize your concepts, chapters, topics, and questions through machine learning. Get this innovative learning experience only on Achievers Test Series!!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | K | ACHIEVERS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (142 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 142 — better | — |
| Update frequency | Every 2 weeks — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 202 MB | 145 MB |
| Age rating | 4+ | 4+ |
| Developer | DEVWORLD VIETAM COMPANY LIMITED | PAVI PUBLICATION PRIVATE LIMITED |
In-app purchases
K
- Three Months VIP$1.993 Months
- Learning Premium Monthly Plan$1.991 Month
- One Month VIP3 Days trial$4.991 Month
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- Learning Premium HalfYear Plan$5.996 Months
- Learning Premium Annual Plan$9.991 Year
- Six Months VIP3 Days trial$24.996 Months
- 1 Year VIP3 Days trial$49.991 Year
- No ads Pack$14.99
ACHIEVERS
- Package - 799$7.99
- Package - 899$8.99
- Package - 999$9.99
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- Package - 1099$9.99
- Package - 1199$11.99
- Package - 1249$11.99
- Package - 1299$12.99
- Package - 1399$12.99
- Package - 1499$14.99
- Package - 1599$14.99
