Comparison

BigSeed vs Osmo Tangram Classic

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

Head to head
About

BigSeed

A logic puzzle game where players unfold colored tiles to fill empty cells. Designed to challenge critical thinking and problem-solving skills, it offers a word-free experience suitable for all ages. Progress is tracked, and multiple profiles are supported.

Highlights
  • Unfold colored seed tiles
  • Fill empty cells perfectly
  • Word-free problem solving
  • Intuitive touch controls
  • Track progress with graphs
  • Support for multiple profiles
Features
Read full description

Big Seed We are excited to present Big Seed to a larger audience. This was the first multistep thinking game to incorporate JiJi the penguin. Up until now, it has only been available in schools, which will often have a Big Seed hall of fame. The goal is to unfold the colored "seed" tiles to perfectly fill all the empty cells. Sound easy? Try to get through all ten levels without overheating your cerebral cortex to near boiling levels. If your scorched neurons force you to raise the white flag in defeat, it'll be infuriating to know that 2nd graders across the country charge through the whole thing as the culmination of MIND Research's award-wining ST Math curriculum! Features: * Fun and intuitive touch-driven controls. * Word-free problem solving. Suitable for all ages across the globe. * Final levels look deceptively simple, but will challenge even Nobel Laureates. * Graphs your progress. * Supports multiple profiles. * From the award-winning creators of STMath®. * All new puzzles for those familiar with the school version. * Proceeds support our non-profit mission of elevating math achievement.

About

Osmo Tangram Classic

Arrange physical puzzle pieces to match on-screen shapes in this engaging game. Challenge yourself or play with a friend through hundreds of levels. Explore diverse worlds and discover treasures as you solve spatial puzzles.

Highlights
  • Match physical pieces to on-screen shapes
  • Hundreds of visual and spatial puzzles
  • Play solo or with a friend
  • Explore themed worlds
  • Award-winning design
  • Brain-training challenges
Read full description

Arrange puzzle pieces to match on-screen shapes. Play with a friend or challenge yourself to increasingly difficult levels as your handiwork lights up with each victory. "This interplay between the physical and digital realms looks and feels like magic." - Forbes "Osmo has been a revolution in our family." - Wired Awarded: **Best Design** - Good Design, 2016 **Best Product Designs** - Fast Company Finalist, 2016 **Innovative Toy of the Year** - TOTY Finalist, 2015 **Best Inventions** - TIME, 2014 With over 500+ visual and spatial puzzles your brain gears will never stop turning! Explore the world of Tangram, puzzling your way through forests, deserts and dark scary castles to find treasure and rescue the people! *Requires the Osmo Base and Tangram blocks which can be found at www.playosmo.com * Please see our device compatibility list here: https://support.playosmo.com/hc/articles/115010156067 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 intelligence technology.

Screenshots

Osmo Tangram Classic4 screens

Verdict

The call

BigSeed and Osmo Tangram Classic both sit at 3.9 stars, but that hides the real split: 77% of BigSeed's written reviews are positive against 47% of Osmo Tangram Classic's. BigSeed also leads on monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 15.0). Osmo Tangram Classic's advantage is update cadence (every 2 months vs every 10 months) and device support (3 vs 1). On price, rating, ratings volume and ads 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

On the App Store both sit at effectively the same score — 3.9 for BigSeed against 3.8 for Osmo Tangram Classic. Both are backed by a comparable volume of ratings — 138 and 314 respectively. Written reviews are what separate them: 77% of BigSeed's written reviews are positive against 47% of Osmo Tangram Classic's.

UpkeepUpdate frequency

BigSeed ships an update every 10 months, Osmo Tangram Classic every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
BigSeed versus Osmo Tangram Classic: the parameters behind the verdict, then further details
ParameterBigSeedOsmo Tangram Classic
PriceFreeFree
Rating3.9 (138 ratings) — better3.8 (314 ratings)
Positive reviews76.7% of reviews — better46.6% of reviews
Number of ratings138314 — better
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS9.0 — better15.0
Further details — not scored
Size10 MB172 MB
Age rating4+4+
DeveloperMIND Research InstituteTangible Play

Customer experience

BigSeed

All ratings119 ratings
Positive71.4%
Neutral9.2%
Negative19.3%
Written reviews30 reviews
Positive76.7%
Neutral6.7%
Negative16.7%

Osmo Tangram Classic

All ratings314 ratings
Positive67.8%
Neutral7.3%
Negative24.8%
Written reviews88 reviews
Positive46.6%
Neutral5.7%
Negative47.7%

Bugs and requests

BigSeed

Not enough reviews yet to summarise bugs or requests.

Osmo Tangram Classic

Reported bugs

12 issues
  • Camera does not detect tangram pieces consistently
  • App stuck on loading screen
  • Puzzle completion not recognized despite correct placement
  • Screen freezes during gameplay
  • Pieces appear in multiple locations simultaneously
Show 7 more
  • App crashes on supported device models
  • Progress resets to beginning after closing app
  • Demo version saves not persisting
  • Compatibility claims inaccurate - shows compatible but won't launch
  • Camera permission not requested on first launch
  • Scrolling on main map frozen in one spot
  • Tile placement detection failures for specific pieces

Requested features

11 requests
  • Advanced difficulty mode for older children and adults
  • Multiplayer gameplay option
  • Adult-oriented version for therapeutic use
  • Improved piece detection and camera sensitivity
  • Smaller app file size
Show 6 more
  • Faster download and loading times
  • More puzzle variety and content
  • Better lighting compensation for camera
  • Restoration of sticker/achievement book feature
  • Easier piece placement mechanics
  • More gems for completing achievements

In-app purchases

None

BigSeed

No in-app purchases

None

Osmo Tangram Classic

No in-app purchases

Questions

Is BigSeed free?
BigSeed is free to download, with no in-app purchases.
Is Osmo Tangram Classic free?
Osmo Tangram Classic is free to download, with no in-app purchases.
Which has better reviews, BigSeed or Osmo Tangram Classic?
BigSeed is rated higher. BigSeed averages 3.9 out of 5 from 138 ratings, while Osmo Tangram Classic averages 3.8 from 314 ratings.
Do BigSeed or Osmo Tangram Classic have ads?
Neither BigSeed nor Osmo Tangram Classic shows ads.
Which is updated more often, BigSeed or Osmo Tangram Classic?
BigSeed ships an update every 10 months, and Osmo Tangram Classic every 2 months. Most recently, BigSeed was updated on November 1, 2026 and Osmo Tangram Classic on November 3, 2026.

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