One Plus Two Is Three vs RiddleSum
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
One Plus Two Is Three
Test your math skills with this fun and fast-paced game. Answer simple arithmetic questions before time runs out to prove your brain's capabilities. It's a free and engaging way to challenge your quick thinking.
- Fast-paced arithmetic challenges
- Time-based gameplay
- Test math brain skills
- Free to play
- Engaging game for quick thinking
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The question is: 1+2=3! But is not easy to get a reply when the time is over! So get it now, it's FREE, download it and test your math's brain skills! Have fun with this great mat app game!
RiddleSum
This number puzzle game challenges you to balance rows and columns by selecting the correct numbers. It offers a relaxing, clean design with hundreds of handcrafted puzzles to sharpen logic and mental math skills at your own pace.
- Hundreds of handcrafted puzzles
- Clean and minimal design
- Helpful hints
- No timers, solve at your own pace
- Daily brain workout
- Logic and mental math training
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RiddleSum is a clean and addictive number puzzle where your goal is to balance every row and column. Pick the right numbers, remove the wrong ones, and make all sums match the clues on the edges. Simple at first glance - surprisingly deep once you start playing. Every puzzle has one single correct solution. Analyze, eliminate, and find the perfect combination that works in all directions at the same time. It’s a great way to sharpen your logic, focus, and mental math skills. How to play: • Check the target sums for each row and column. • Cross out numbers that can’t be part of the solution. • Keep only the numbers that complete the total. • Solve boards from 3×3 up to 9×9. Features: • Hundreds of handcrafted number puzzles. • Clean and minimal design that feels relaxing. • Helpful hints when you’re stuck. • No timers, no pressure — solve at your own pace. • A subtle daily workout for your brain and arithmetic. If you love smart logic puzzles and satisfying “aha!” moments, RiddleSum is perfect for your daily brain routine. Enjoy solving beautifully simple number challenges anywhere, anytime.
Screenshots
Verdict
The clearest difference is rating: RiddleSum at 4.6 against One Plus Two Is Three's 4.0. RiddleSum also leads on ratings volume (10 vs 1). One Plus Two Is Three's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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. RiddleSum sells 1 one-off in-app purchase. One Plus Two Is Three asks for nothing beyond the download.
RiddleSum holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: RiddleSum has 10 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | One Plus Two Is Three | RiddleSum |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.6 (10 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 10 — better |
| Update frequency | — | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 11 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Giuseppe Calcagno | Dmitriy Romanov |
Customer experience
One Plus Two Is Three
RiddleSum
In-app purchases
One Plus Two Is Three
No in-app purchases
RiddleSum
- Remove Ads$2.99
Questions
Is One Plus Two Is Three free?
Is RiddleSum free?
Which has better reviews, One Plus Two Is Three or RiddleSum?
Do One Plus Two Is Three or RiddleSum have ads?
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