Comparison

Dinosaur Chess vs Osmo Coding Duo

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

Head to head
About

Dinosaur Chess

Learn and play chess with an engaging, non-intimidating approach. Features interactive lessons, mini-games, puzzles, and play against animated dinosaurs. Progress from beginner to advanced tactics.

Highlights
  • Interactive chess lessons
  • Mini games and puzzles
  • Play against animated dinosaurs
  • Chess tactics lessons
  • Progressive difficulty levels
  • Multi-student support
Features
Currently charting
Read full description

** Appysmarts.com: 97/100 EDITOR'S FAVORITE! ** Previously nominated for a BAFTA (Best Interactive Media)! ** ** Featured by Apple in it's "New & Noteworthy" section! ** ** No Ads. No In-App-Purchases ** ** Universal App optimized for iPad, iPhone. Retina Graphics. Dinosaur Chess is the fun way to learn and play chess. Designed to be non-intimidating: -- Learn how to play chess with 11 bite-sized interactive lessons. -- Over 20 mini games and puzzles. -- Play simplified and full chess against 6 beautifully animated dinosaurs. -- Entertaining and challenging. -- Learning and playing chess encourage concentration, improves cognitive abilities and rational thinking. -- Can now play as a Boy Student or as a Girl Student. -- Multi-student support For more advanced learners: -- 8 chess Tactics lessons. -- The 'Amazing Chess Tactics Machine' game to practice chess tactics/puzzles. -- Chess Engine can be set to Easy/Medium/Hard Sign up to Professor MacDinosaur's chess class. You will grow from a hatchling, fresh from the egg, to a huge dinosaur ready to take on the Trex. The action takes you through different parts of the dinosaur's world from jungles to forests. Here you learn the chess skills that will help you grow enough to defeat the other dinosaurs in battle. ________________________________ Some Reviews: *Excellent step by step approach by Jurassienne_Dole Lots of examples of the basic moves and tactics and some amusing side games involving dinosaurs. Fun for kids and adults alike and plenty of challenges at all levels. *Dinosaur Chess by Mls968 This is a great program. The lessons are interesting, and play levels go from easy to difficult. My 4 and 6 year olds are learning the game, and it's helping novice players like my wife and I too. Highly recommended to anyone who wants to introduce their children to chess! *An excellent app by Adg6 A wonderful app. Ideal for anyone new to chess. It is even fun for experienced chess players. *Highly Recommended - by doled "This is a fantastic chess teaching game. This game alone makes it worth buying an iPad. My three year old now knows the piece names and basic moves. My six year old is well on her way to playing a full game. Our family has had an iPad since the day the iPad was released and this is one of the best apps we have." *Great! - by TonySchleizer "This game has gotten my 5 year old interested in chess. Great tutorials that get progressively harder as skills improve." * Great for getting started - by Milfordthelargebonedgorilla "This has been fantastic for my five year old son...using this in addition to a real board and pieces has helped him immensely in understanding each of the pieces, how they move, their strengths and weaknesses...a terrific way to introduce young ones to the game without overwhelming them" * Great learning tool - by Triplescoop "I have an adopted 7 year old boy with fetal alcohol syndrome. It is very hard for him to learn to play games. Checkers was very hard for him to learn. I thought that chess would be something that he would have to wait to learn. I bought this app even though there were no reviews. So glad I did! What a great teaching tool! I love the mini games that teach the directions that each piece can move. We play slowly but my son can play chess! I recommend this for anyone who wants to learn the basics of the game. This app is for beginners. Great for kids! Thank you to the developers of this app!" *Super! - by Chess player "Hats off to the developers. A fun program for kids." *Ideal For kids - by Kingkot "This game is ideal to teach the kids in the chess."

About

Osmo Coding Duo

This app offers a collaborative coding adventure where two players team up to solve logic puzzles and rescue pets. It introduces real-world coding concepts through engaging challenges and a fun narrative.

Highlights
  • Multistep logic problems
  • Collaborative play for two
  • Coding concept introduction
  • Pet rescue adventure
  • Osmo character interaction
Read full description

Team up with a friend to solve coding puzzles and rescue pets! The most advanced game in Osmo’s Coding Family, Coding Duo uses multistep logic problems to introduce kids to real-world coding concepts. FEATURES: Advanced Puzzles for Coding Fans Get challenged by multistep logic problems that will stretch minds and introduce them to coding concepts that are used in the real world. Collaborative Play Friends and family can play together side by side to solve coding puzzles. Use teamwork and strategy to work together towards a common goal. A Fun Rescue Adventure with Osmo Characters A scientist has lost his pets and needs your help to find them. Solve the coding challenges using your favorite Osmo characters and rescue pets across several islands and return them to their home. NOTES: * Requires the Osmo Base and Coding Blocks. Each sold separately or as part of Osmo Coding Starter Kit or Osmo Coding Family Bundle. * Compatible with most iPads. 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 intelligent technology.

Screenshots

Dinosaur Chess4 screens
Osmo Coding Duo4 screens

Verdict

The call

The clearest difference is price: Osmo Coding Duo at Free against Dinosaur Chess's $4.99. Osmo Coding Duo also leads on update cadence (every 2 months vs every 16 months) and ratings volume (145 vs 38). Dinosaur Chess's advantage is chart position (#174 vs unranked) and iOS requirement (8.0 vs 15.0). On rating, review sentiment, 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

Osmo Coding Duo is free to download; Dinosaur Chess costs $4.99 up front. 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 — 3.8 for Dinosaur Chess against 3.9 for Osmo Coding Duo. Both are backed by a comparable volume of ratings — 38 and 145 respectively. Written reviews are what separate them: 59% of Dinosaur Chess's written reviews are positive against 53% of Osmo Coding Duo's.

UpkeepUpdate frequency

Dinosaur Chess ships an update every 16 months, Osmo Coding Duo every 2 months. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

Scorecard6 real differences · 5 level
Dinosaur Chess versus Osmo Coding Duo: the parameters behind the verdict, then further details
ParameterDinosaur ChessOsmo Coding Duo
Price$4.99Free — better
Rating3.8 (38 ratings)3.9 (145 ratings) — better
Positive reviews59.0% of reviews — better52.6% of reviews
Number of ratings38145 — better
Update frequencyEvery 16 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree with in-app purchases — better
Best chart rank#174 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size34 MB309 MB
Age rating4+4+
DeveloperUniversis TechnologyTangible Play

Customer experience

Dinosaur Chess

All ratings38 ratings
Positive68.4%
Neutral5.3%
Negative26.3%
Written reviews78 reviews
Positive59.0%
Neutral9.0%
Negative32.1%

Osmo Coding Duo

All ratings145 ratings
Positive71.7%
Neutral2.1%
Negative26.2%
Written reviews19 reviews
Positive52.6%
Neutral5.3%
Negative42.1%

Bugs and requests

Dinosaur Chess

Reported bugs

7 issues
  • No audio/sound issues reported consistently over many years
  • App crashes frequently, especially at the end of games
  • Pieces disappear or change randomly
  • Game freezes
  • Cannot save progress
Show 2 more
  • Board jitters during lessons
  • Valid moves misread, causing error sounds

Requested features

8 requests
  • Provide developer contact information
  • Add a two-player mode
  • Allow skipping learning modules
  • Separate profiles for multiple users
  • Option to turn off music
Show 3 more
  • Make Kindle app version available
  • Turn off hint and move-back features
  • More accurate finger placement for moves

Osmo Coding Duo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Dinosaur Chess

No in-app purchases

None

Osmo Coding Duo

No in-app purchases

Questions

Is Dinosaur Chess free?
Dinosaur Chess costs $4.99, with no in-app purchases.
Is Osmo Coding Duo free?
Osmo Coding Duo is free to download, with no in-app purchases.
Which has better reviews, Dinosaur Chess or Osmo Coding Duo?
Osmo Coding Duo is rated higher. Dinosaur Chess averages 3.8 out of 5 from 38 ratings, while Osmo Coding Duo averages 3.9 from 145 ratings.
Do Dinosaur Chess or Osmo Coding Duo have ads?
Neither Dinosaur Chess nor Osmo Coding Duo shows ads.
Which is updated more often, Dinosaur Chess or Osmo Coding Duo?
Dinosaur Chess ships an update every 16 months, and Osmo Coding Duo every 2 months. Most recently, Dinosaur Chess was updated on September 26, 2026 and Osmo Coding Duo on September 25, 2026.

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