Comparison

Square Panda Letter Lullaby vs Osmo Math Buzz

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

Head to head
About

Square Panda Letter Lullaby

Children create their own alphabet songs by arranging letters, experiencing tactile reinforcement and multi-sensory engagement. This app offers two modes: one for song creation and another for reviewing new words learned, bringing their unique lullabies to life.

Highlights
  • Customizable alphabet songs
  • Tactile letter reinforcement
  • Multi-sensory learning
  • Word review mode
  • Phonics and vocabulary building
  • Contextual word reinforcement with pictures
Features
Read full description

This is like no alphabet song your child will ever hear because this is a song they will create themselves! By putting letters in the tray your child experiences tactile reinforcement as they decide on letters, queue them up, and take control of their song. This is where a multi-sensory, transmedia juke-box meets a lullaby music video! Take a journey through Square Panda's imagination where any alphabet song creation is possible! Your child engages with two different modes, one to create the song and one to review the new words learned. Watch in delight as your child's lullaby comes to life! Perfect for children learning: the Alphabet, letters, letter sounds, concepts about print, word families, word endings, and vocabulary Features: 26 letters songs in hundreds of combinations for a unique alphabet song experience every time! Contextual reinforcement of words with pictures supports comprehension and vocabulary acquisition Review mode allows for children to interact with key words that appear in the song lyrics Phonics Benefits: Children learn that symbols correspond with specific phonemic sounds and when placed individually or together create brand new sounds. These sounds tied together have meaning and this meaning is the construct for the entire English language. For ages 2-3. Square Panda Playset required to play.

About

Osmo Math Buzz

Engage in collaborative math practice with up to four players, solving equations to overcome challenges and collect rewards. Designed for children aged 6-10, this app transforms screen time into hands-on learning through interactive play.

Highlights
  • Team-based math practice
  • Addition, subtraction, multiplication
  • Collaborative play
  • Hands-on learning system
  • Ages 6-10
  • Tangible play with digital learning
Read full description

With your team of up to 4 players, solve math equations to get past unfriendly bugs and collect all of the honey in the garden. TEAM UP TO PRACTICE YOUR MATH SKILLS Practice addition, subtraction, multiplication and teamwork with a friend! EXPLORE CORE LEARNING SUBJECTS THROUGH PLAY Designed for children ages 6-10 to build skills through fun collaborative play. TURN SCREEN TIME INTO LEARNING TIME Osmo’s unique technology transforms your tablet into a hands-on learning system! *Play your favourite Osmo Math Buzz on both iPhone and iPad! Use your iPhone with the Osmo Base for iPad and Numbers tiles - each can be found at playosmo.com. * Please see our device compatibility list here: https://support.playosmo.com/hc/articles/115010156067 *Requires the Osmo Base for iPad and Numbers tiles. Each sold separately or as part of Osmo Genius Starter Kit. Learn more by visiting www.playosmo.com. ABOUT OSMO -- 21ST CENTURY PLAY AND LEARNING Osmo combines healthy screen time and tangible play to make learning engaging and fun. Every Osmo game uses physical action and reflective artificial intelligence technology for digital learning in the real world. Help your child become more confident, thoughtful, and creative with Osmo.

Screenshots

Osmo Math Buzz4 screens

Verdict

The call

The clearest difference is in-app purchases: Square Panda Letter Lullaby at none against Osmo Math Buzz's 2. Square Panda Letter Lullaby also leads on iOS requirement (8.0 vs 15.0). Osmo Math Buzz's advantage is ratings volume (143 vs 10) and review sentiment (13% vs 0%). On price, rating, update cadence 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. Osmo Math Buzz sells 2 one-off in-app purchases. Square Panda Letter Lullaby asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Square Panda Letter Lullaby holds the better App Store score, 3.2 against 3.0. That said, the two scores are not equally well evidenced: Osmo Math Buzz has 143 ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 0% of Square Panda Letter Lullaby's written reviews are positive against 13% of Osmo Math Buzz's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 2, 2026 and October 21, 2026 respectively.

Scorecard6 real differences · 4 level
Square Panda Letter Lullaby versus Osmo Math Buzz: the parameters behind the verdict, then further details
ParameterSquare Panda Letter LullabyOsmo Math Buzz
PriceFreeFree
Rating3.2 (10 ratings) — better3.0 (143 ratings)
Positive reviews0.0% of reviews13.3% of reviews — better
Number of ratings10143 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPadiPhone, iPad, iPod — better
Requires iOS8.0 — better15.0
Further details — not scored
Size263 MB264 MB
Age rating4+4+
DeveloperSquare Panda Inc.Tangible Play

Customer experience

Square Panda Letter Lullaby

All ratings10 ratings
Positive50.0%
Neutral10.0%
Negative40.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Osmo Math Buzz

All ratings143 ratings
Positive45.5%
Neutral11.9%
Negative42.7%
Written reviews45 reviews
Positive13.3%
Neutral13.3%
Negative73.3%

Bugs and requests

Square Panda Letter Lullaby

Not enough reviews yet to summarise bugs or requests.

Osmo Math Buzz

Reported bugs

10 issues
  • App freezes on Osmo logo
  • App does not load
  • App crashes during gameplay
  • Lost progress after crashes
  • Login issues and purchase restoration problems
Show 5 more
  • Reader not recognizing tiles
  • Screen freezes after selecting base
  • App not loading past white Osmo screen
  • Progress data disappeared
  • IAP unlock button not working

Requested features

8 requests
  • Fix the app loading issue
  • Improve app stability
  • Make the game more engaging
  • Provide clearer instructions
  • Ensure progress is saved
Show 3 more
  • Make trial cancellation easier
  • Address wasp behavior randomness
  • Update app for current devices

In-app purchases

None

Square Panda Letter Lullaby

No in-app purchases

2 purchases

Osmo Math Buzz

One-time2
  • 3-day trial of Math BuzzFree
  • Unlock Math Buzz$24.99

Questions

Is Square Panda Letter Lullaby free?
Square Panda Letter Lullaby is free to download, with no in-app purchases.
Is Osmo Math Buzz free?
Osmo Math Buzz is free to download, with in-app purchases available.
Which has better reviews, Square Panda Letter Lullaby or Osmo Math Buzz?
Square Panda Letter Lullaby is rated higher. Square Panda Letter Lullaby averages 3.2 out of 5 from 10 ratings, while Osmo Math Buzz averages 3.0 from 143 ratings.
Do Square Panda Letter Lullaby or Osmo Math Buzz have ads?
Neither Square Panda Letter Lullaby nor Osmo Math Buzz shows ads.
Which is updated more often, Square Panda Letter Lullaby or Osmo Math Buzz?
Square Panda Letter Lullaby ships an update every 2 months, and Osmo Math Buzz every 2 months. Most recently, Square Panda Letter Lullaby was updated on October 2, 2026 and Osmo Math Buzz on October 21, 2026.

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