Comparison

Engineering Adventures 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

Engineering Adventures

This app complements an out-of-school engineering curriculum by providing audio messages triggered by QR codes in accompanying journals. It covers 11 different engineering units, from building earthquake-resistant structures to designing space gloves.

Highlights
  • QR code scanner
  • Audio messages from characters
  • 11 engineering units
  • Complements curriculum
  • Interactive learning
Features
Read full description

Messages from the Duo is designed to be used in conjunction with the out-of-school time engineering curriculum Engineering Adventures. Eleven units are available, including: 1. Hop to It: Safe Removal of Invasive Species 2. Bubble Bonanza: Engineering Bubble Wands 3. To the Rescue: Engineering Aid Drop Packages 4. Shake Things Up: Engineering Earthquake Resistant Buildings 5. Go Green: Engineering Recycled Racers 6. Liftoff: Engineering Rockets and Rovers 7. The Sky’s the Limit: Engineering Flying Technologies 8. Music to My Ears: An Acoustical Engineering Challenge 9. A Slippery Slope: Engineering Avalanche Protection Systems 10. Light Up the Night: An Electrical Engineering Challenge 11. In Good Hands: Engineering Space Gloves Educators and kids can use the special QR code scanner in this app to scan the codes in their Engineering Journals and play audio messages from India and Jacob, Engineering Adventures’ “travelling duo.” For more information about how to download or purchase an Educator Guide and Engineering Journal, visit the Engineering Adventures website at engineeringadventures.org. Produced by Owen Berliner and the Engineering is Elementary Team Developed by Sean Fitzgerald and Tarrant Cutler Illustrated by Ross Sullivan-Wiley

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

Engineering Adventures3 screens
Osmo Tangram Classic4 screens

Verdict

The call

The clearest difference is monetization model: Engineering Adventures at free against Osmo Tangram Classic's free with in-app purchases. Engineering Adventures also leads on iOS requirement (8.0 vs 15.0). Osmo Tangram Classic's advantage is ratings volume (314 vs 3) and update cadence (every 2 months vs every 7 months). On price, rating, 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

On the App Store both sit at effectively the same score — 3.7 for Engineering Adventures against 3.8 for Osmo Tangram Classic. That said, the two scores are not equally well evidenced: Osmo Tangram Classic has 314 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 33% of Engineering Adventures's written reviews are positive against 47% of Osmo Tangram Classic's.

UpkeepUpdate frequency

Engineering Adventures ships an update every 7 months, Osmo Tangram Classic every 2 months. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.

Scorecard5 real differences · 5 level
Engineering Adventures versus Osmo Tangram Classic: the parameters behind the verdict, then further details
ParameterEngineering AdventuresOsmo Tangram Classic
PriceFreeFree
Rating3.7 (3 ratings)3.8 (314 ratings) — better
Positive reviews33.3% of reviews47.3% of reviews — better
Number of ratings3314 — better
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.0
Further details — not scored
Size159 MB172 MB
Age rating4+4+
DeveloperMuseum of ScienceTangible Play

Customer experience

Engineering Adventures

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Osmo Tangram Classic

All ratings314 ratings
Positive67.8%
Neutral7.3%
Negative24.8%
Written reviews93 reviews
Positive47.3%
Neutral5.4%
Negative47.3%

Bugs and requests

Engineering Adventures

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

Engineering Adventures

No in-app purchases

None

Osmo Tangram Classic

No in-app purchases

Questions

Is Engineering Adventures free?
Engineering Adventures 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, Engineering Adventures or Osmo Tangram Classic?
Osmo Tangram Classic is rated higher. Engineering Adventures averages 3.7 out of 5 from 3 ratings, while Osmo Tangram Classic averages 3.8 from 314 ratings.
Do Engineering Adventures or Osmo Tangram Classic have ads?
Neither Engineering Adventures nor Osmo Tangram Classic shows ads.
Which is updated more often, Engineering Adventures or Osmo Tangram Classic?
Engineering Adventures ships an update every 7 months, and Osmo Tangram Classic every 2 months. Most recently, Engineering Adventures was updated on November 11, 2026 and Osmo Tangram Classic on November 12, 2026.

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