# Square Panda Bubbles vs Osmo Lettertopia

The clearest difference is review sentiment: Square Panda Bubbles at 50% against Osmo Lettertopia's 6%. Square Panda Bubbles also leads on rating (4.2 vs 3.3) and in-app purchases (none vs 2). Osmo Lettertopia's advantage is ratings volume (75 vs 10) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Osmo Lettertopia sells 2 one-off in-app purchases. Square Panda Bubbles asks for nothing beyond the download.

Square Panda Bubbles holds the better App Store score, 4.2 against 3.3. That said, the two scores are not equally well evidenced: Osmo Lettertopia has 75 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 50% of Square Panda Bubbles's written reviews are positive against 6% of Osmo Lettertopia's.

Square Panda Bubbles ships an update every 6 weeks, Osmo Lettertopia every 3 months. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Square Panda Bubbles | Osmo Lettertopia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/square-panda-bubbles/id1162301083/reviews)** | [3.3 (75 ratings)](https://appshunter.io/ios/app/osmo-lettertopia/id1504176887/reviews) |
| Number of ratings | 10 | **75** |
| Positive reviews | **50.0% of reviews** | 5.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 146 MB | 277 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Square Panda Inc.](https://appshunter.io/developer/1088414097) | [Tangible Play](https://appshunter.io/developer/799157444) |

## What reviewers say

### Square Panda Bubbles

[App page](https://appshunter.io/ios/app/square-panda-bubbles/id1162301083)

This educational game helps young children learn letter sounds, phonics, and new words by popping bubbles. It's designed for ages 2-5 and is compatible with the Square Panda Playset, using smart letters to reinforce learning.

**Highlights:** Learn letter sounds, Phonics instruction, Word building, Spelling practice, Vocabulary comprehension, Concepts about print

**Features:** macOS Compatibility

**In-app purchases:** none


### Osmo Lettertopia

[App page](https://appshunter.io/ios/app/osmo-lettertopia/id1504176887)

This app transforms your tablet into a hands-on learning system for children aged 6-10. Players team up to build words, collect magical creatures, and boost spelling and social-emotional skills through collaborative play.

**Highlights:** Team-based word building, Collect magical creatures, Boost spelling skills, Develop social-emotional skills, Hands-on learning system, Collaborative play

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-day trial of Lettertopia | Free | one-time |
| Unlock Lettertopia | $24.99 | one-time |


## Frequently asked questions

### Is Square Panda Bubbles free?

Square Panda Bubbles is free to download, with no in-app purchases.

### Is Osmo Lettertopia free?

Osmo Lettertopia is free to download, with in-app purchases available.

### Which has better reviews, Square Panda Bubbles or Osmo Lettertopia?

Square Panda Bubbles is rated higher. Square Panda Bubbles averages 4.2 out of 5 from 10 ratings, while Osmo Lettertopia averages 3.3 from 75 ratings.

### Do Square Panda Bubbles or Osmo Lettertopia have ads?

Neither Square Panda Bubbles nor Osmo Lettertopia shows ads.

### Which is updated more often, Square Panda Bubbles or Osmo Lettertopia?

Square Panda Bubbles ships an update every 6 weeks, and Osmo Lettertopia every 3 months. Most recently, Square Panda Bubbles was updated on October 2, 2026 and Osmo Lettertopia on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*