Math 99 vs Osmo World
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Math 99
This app offers a fun and progressive way for children and adults to master multiplication tables and other basic math operations. It challenges your brain with timed equations and helps improve reaction speed and mathematical skills. Play offline, anytime, anywhere.
- Learn time tables progressively
- Timed math equation challenges
- Addition, subtraction, multiplication, division
- Randomized number generation
- Improves reaction speed
- Offline play
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Right or wrong? An equation appears: 7 × 8 = 54. Decide in a split second: swipe the card or tap. Math 99 has been played since 2015; now it's rebuilt from the ground up. BLITZ Time is a pool: every right answer adds time, every wrong one takes it away. Chain right answers into combos, hit fever mode at a 10 combo and double your points. New question types unlock as you play: "Which is bigger?", missing sign, missing number. Your best score this week is kept separately. 99 STAGES Nine regions and 99 stages, from addition to division, from missing numbers to two-step problems. Earn three stars on each. REPORT CARD & MASTERY PATH Your speed and accuracy on every times-table fact, on a 10×10 report card. See your weak spots and work on them with untimed practice. The mastery path uses spaced repetition: each day you only review the facts that are due. DUEL Two players, one phone, the same question. The first right answer scores; a wrong tap loses a point. Give the stronger player a waiting time so kids and grown-ups can play on equal terms. DAILY The same questions for everyone, one try per day. Keep your streak going; miss a day and you can make it up the next. Want a reminder in the evening? Just switch it on. CLASSIC The original Math 99: a short time for each question, and the game ends at the first mistake. Your record is still on the old Game Center leaderboard. FOUR THEMES Ribbon, Chalk, Neon and Notebook, each with its own music, sounds and look. They unlock as you level up. AND MORE • Daily tasks, levels and a reward path • 30 achievements and a weekly cup • Game Center leaderboards • Plays offline Kids learn their times tables, grown-ups keep their minds sharp.
Osmo World
This app serves as a central hub for a collection of educational games designed to foster creativity, problem-solving, and social interaction in children. It allows users to launch into various Osmo games and collect virtual rewards.
- Launch Osmo games
- Explore game library
- Win collectible stickers
- Hands-on learning
- Promotes creativity
- Encourages problem-solving
- Fosters social interaction
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This is the home for Osmo! Launch into Osmo to explore all your favorite Osmo games, and win collectible stickers along the way. Osmo is connecting over 1 million kids around the world to a new healthy, hands-on learning experience that promotes creativity, problem-solving, and social interaction. Find out more at www.playosmo.com
Screenshots
Verdict
The clearest difference is rating: Osmo World at 3.9 against Math 99's 3.0. Osmo World also leads on ads (none vs shown) and update cadence (every 2 months vs every 18 months). Math 99's advantage is monetization model (free vs ad-supported). 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. Neither carries in-app purchases, so what you see is what you pay.
Osmo World holds the better App Store score, 3.9 against 3.0. That said, the two scores are not equally well evidenced: Osmo World has 1.4K ratings behind it against 4, so its average is the more settled of the two.
Math 99 ships an update every 18 months, Osmo World every 2 months. Both last shipped on November 6, 2026.
| Parameter | Math 99 | Osmo World |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 3.9 (1.4K ratings) — better |
| Positive reviews | — | 42.3% of reviews |
| Number of ratings | 4 | 1.4K — better |
| Update frequency | Every 18 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 37 MB | 347 MB |
| Age rating | 4+ | 4+ |
| Developer | ARDEVTEK YAZILIM | Tangible Play |
Customer experience
Math 99
Osmo World
Bugs and requests
Math 99
Not enough reviews yet to summarise bugs or requests.
Osmo World
Reported bugs
4 issues- App crashes or freezes
- Camera recognition problems
- Saved progress/data loss
- Incompatibility with certain iPad models
Requested features
4 requests- More game content and updates
- Improved account/progress syncing
- Simplified setup and onboarding
- Better support for newer hardware
In-app purchases
Math 99
No in-app purchases
Osmo World
No in-app purchases
