2nd Grade Math Challenge vs Chaipang Subtraction
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2nd Grade Math Challenge
Test your 2nd-grade math skills with 100 engaging questions and puzzles. Track your progress, share your score with a personalized certificate, and challenge friends and family to friendly competitions. Step-by-step solutions are available for better understanding.
- 100 math questions and levels
- Includes math puzzles
- Create and share score certificates
- Challenge friends and family
- Step-by-step solution guides
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Challenge your mind with 2nd grade level Math and see where you stand. There are 100 questions/levels sprinkled with some interesting Math puzzles in between. Create and share a certificate of your final score. Challenge your friends and family to see who can score the most. Watch step-by-step solution for better understanding of answers.
Chaipang Subtraction
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1. Features and composition ▶ Increase the speed and accuracy of calculations “Chaipang Subtraction” is a game-based calculation learning app designed to improve children’s ‘subtraction’ skills. ▶ Increase the immersion level of children. “Chaipang Subtraction” is set in kindergarten and is played in the form of card games with friends so that children can feel immersed. ▶ Motivation to improve calculation skills All 50 characters you play with have different calculation skills. Your ranking changes according to the result of the game with each character. 2. How to enjoy Chaipang Subtraction with Chaipang friends! ① Let’s play subtraction games with card games! ② If you answer the correct answer first, you can get a star-shaped block! ③ The more blocks you have, the higher your ranking will be. ④ If you have the highest score, you can wear a crown! 3. Contact us If you have any questions, please contact us at the address below. Tel. +82-2-508-0710 Email. support@wecref.com Developer : wecref.dev@gmail.com
Screenshots
Verdict
2nd Grade Math Challenge and Chaipang Subtraction are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. 2nd Grade Math Challenge sells 1 one-off in-app purchase and Chaipang Subtraction sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
2nd Grade Math Challenge ships an update every 5 months, Chaipang Subtraction every 3 months. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.
| Parameter | 2nd Grade Math Challenge | Chaipang Subtraction |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (16 ratings) — better | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 5 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 36 MB | 136 MB |
| Age rating | 4+ | 4+ |
| Developer | IT365 Solutions Inc | Wecref Co., Ltd. |
In-app purchases
2nd Grade Math Challenge
- Remove all Ads from Math 2$0.99
Chaipang Subtraction
- 차이팡 뺄셈 광고제거$2.99
Questions
Is 2nd Grade Math Challenge free?
Is Chaipang Subtraction free?
Do 2nd Grade Math Challenge or Chaipang Subtraction have ads?
Which is updated more often, 2nd Grade Math Challenge or Chaipang Subtraction?
Other comparisons
