Comparison

Tami's Tower vs Osmo Numbers

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Tami's Tower

Guide a hungry tamarin to fruit by building a stable tower. Learn basic engineering design principles through interactive gameplay. This educational game is designed for young learners and can be used at home or in the classroom.

Highlights
  • Build towers to reach fruit
  • Learn engineering design principles
  • Educational content for K-2
  • Metacognitive prompts for self-assessment
  • Sandbox mode for level design
  • Classroom or home use
Features
Read full description

It’s lunch time and Tami, the golden lion tamarin, is hungry! Help Tami reach the delicious fruit by building a tower. But watch out! Other animals can cause Tami’s tower to topple over. From the Smithsonian Science Education Center, Tami’s Tower: Let’s Think About Engineering is an educational engineering design game that will help teach your student how to design a solution to a problem using basic engineering design principles. Educational features: • Aligned to educational science standards for kindergarten through second grade • Designed for emergent readers • Grounded in educational psychology research • Metacognitive prompts provide students an opportunity to monitor and assess their own confidence •  Teachers can assess student responses to metacognitive prompts through an in-game summary screen •  In-game tutorial to teach students how to play • Introduces students to engineering design principles • Students will learn how the shape of an object can help it function as needed to solve a problem •  Students can reflect on previous attempts to improve design •  Students can design a level in Sandbox mode •  Designed to be used in the classroom or at home

About

Osmo Numbers

Engage in hands-on math activities with physical tiles that interact with your device. Solve problems to collect virtual fish, learn geography, and explore marine biology in a fun, stress-free environment.

Highlights
  • Hands-on play with physical tiles
  • Counting, addition, subtraction, multiplication
  • Collect over 100 virtual fish
  • Learn geography and marine biology
  • Real-time feedback
  • Stress-free learning environment
Read full description

Dive into an ocean of hands-on math fun! In Osmo Genius Numbers, play with physical Osmo Numbers Tiles, including dots and digits. When your results match the numbers on the screen, cartoon bubbles burst with a satisfying pop! Count, add, subtract, or multiply to collect over 100 fish across the world to learn about geography and marine biology! Real-time feedback lets kids learn math through experimentation in a stress-free environment. When kids get the idea that there are multiple good ways to solve a problem, math becomes creative and fun. Play your favorite Osmo Genius Numbers on both iPhone and iPad! Use your iPhone with the Osmo Base for iPad and Genius game hardware - each can be found at playosmo.com. * Requires the Osmo Base and Osmo Numbers Tiles. Each sold separately or as part of Osmo Genius Starter Kit or Osmo Genius Numbers. * Other Osmo Genius Starter Kit games Masterpiece and Newton are not available on iPhone today, they will be released in the next month or two, so keep your eyes peeled! * Please see our device compatibility list here: https://support.playosmo.com/hc/articles/115010156067 * Compatible iPhones: iPhone 12, 12 Pro, 12 Pro Max iPhone 13, 13 Pro, 13 Pro Max iPhone 14, 14 Plus * Not compatible: iPhone 14 Pro, 14 Pro Max iPhone 12 Mini,13 Mini iPhone SE (1-3) iPhone 11 Series and older “One of 2016’s most intuitive product designs.” - Fast Company Award "...once again, Osmo has built something wonderfully creative and interactive." - Venture Beat "Osmo Numbers takes the fear out of figures." - Forbes "…revamp the unimaginative worksheets educators use to teach math" - TechCrunch Winner of the toy industry's top awards: **Best Design** - Good Design, 2016 **Best Product Designs** - Fast Company Finalist, 2016 **Innovative Toy of the Year** - TOTY Finalist, 2015 **Best Inventions** - TIME, 2014 About Osmo Osmo is using the screen to create a new healthy, hands-on learning experience that promotes creativity, problem-solving and social interaction. We do this with our reflective artificial intelligent technology.

Screenshots

Tami's Tower1 screens
Osmo Numbers4 screens

Verdict

The call

The clearest difference is review sentiment: Tami's Tower at 100% against Osmo Numbers's 33%. Tami's Tower also leads on rating (5.0 vs 3.8) and monetization model (free vs free with in-app purchases). Osmo Numbers's advantage is ratings volume (146 vs 14). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Tami's Tower holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Osmo Numbers has 146 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 100% of Tami's Tower's written reviews are positive against 33% of Osmo Numbers's.

UpkeepUpdate frequency

Tami's Tower ships an update every 6 weeks, Osmo Numbers every 2 months. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Tami's Tower versus Osmo Numbers: the parameters behind the verdict, then further details
ParameterTami's TowerOsmo Numbers
PriceFreeFree
Rating5.0 (14 ratings) — better3.8 (146 ratings)
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings14146 — better
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size68 MB358 MB
Age rating4+4+
DeveloperSmithsonian InstitutionTangible Play

Customer experience

Tami's Tower

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Osmo Numbers

All ratings145 ratings
Positive66.2%
Neutral9.0%
Negative24.8%
Written reviews30 reviews
Positive33.3%
Neutral10.0%
Negative56.7%

Bugs and requests

Tami's Tower

Not enough reviews yet to summarise bugs or requests.

Osmo Numbers

Reported bugs

12 issues
  • App glitches
  • App crashes
  • Game will not register tiles
  • Reflector not sensing tiles
  • App won't open on old iPads
Show 7 more
  • Unable to login or create new account
  • Codes to create account not working
  • Not compatible with iPad Pro 4th generation
  • App crashes when trying to open
  • Black screen when starting app
  • Numbers go up to 35 then lay down for 14
  • Update caused son to stop playing

Requested features

5 requests
  • Increase timer duration
  • Add more drawing games
  • Add voice reading for math problems
  • Improve tile sensing accuracy
  • Make game go slower

In-app purchases

None

Tami's Tower

No in-app purchases

None

Osmo Numbers

No in-app purchases

Questions

Is Tami's Tower free?
Tami's Tower is free to download, with no in-app purchases.
Is Osmo Numbers free?
Osmo Numbers is free to download, with no in-app purchases.
Which has better reviews, Tami's Tower or Osmo Numbers?
Tami's Tower is rated higher. Tami's Tower averages 5.0 out of 5 from 14 ratings, while Osmo Numbers averages 3.8 from 146 ratings.
Do Tami's Tower or Osmo Numbers have ads?
Neither Tami's Tower nor Osmo Numbers shows ads.
Which is updated more often, Tami's Tower or Osmo Numbers?
Tami's Tower ships an update every 6 weeks, and Osmo Numbers every 2 months. Most recently, Tami's Tower was updated on October 11, 2026 and Osmo Numbers on October 24, 2026.

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