# Osmo ABCs vs Hydra Budding

The clearest difference is price: Osmo ABCs at Free against Hydra Budding's $1.99. Osmo ABCs also leads on update cadence (every 2 months vs every 44 months). Hydra Budding's advantage is iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Osmo ABCs is free to download; Hydra Budding costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Osmo ABCs ships an update every 2 months, Hydra Budding every 44 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Osmo ABCs | Hydra Budding |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[3.7 (266 ratings)](https://appshunter.io/ios/app/osmo-abcs/id1439615379/reviews)** | — |
| Number of ratings | **266** | — |
| Positive reviews | 18.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 44 months |
| Monetization | Free with in-app purchases | — |
| Size | 843 MB | 273 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tangible Play](https://appshunter.io/developer/799157444) | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) |

## What reviewers say

### Osmo ABCs

[App page](https://appshunter.io/ios/app/osmo-abcs/id1439615379)

Engage young learners in a hands-on adventure to build pre-reading skills. Through interactive play with a friendly monster, children develop confidence in letter recognition, phonics, and vocabulary. This app requires physical Osmo pieces and a compatible iPhone or iPad.

**Highlights:** Letter recognition, Phonics learning, Vocabulary building, Over 300 words, Hands-on play, Interactive adventure

**In-app purchases:** none

**What reviewers like**

- 😃 Amazing game
- 💖 Love it so much
- ✨ So much fun
- 👍 Great app for kids
- 💯 Everything is spot on

**What reviewers complain about**

- ❌ Not compatible with iPad Pro
- ❌ Not receiving verification code
- ❌ Faulty readings
- ❌ Unusable like this
- ❌ Not playable

**Reported bugs**

- Not compatible with iPad Pro
- Not receiving verification code
- Faulty readings (wrong tile detection)
- Camera orientation issues on newer iPads
- App won't open for some users

**Requested features**

- Update app for newer iPads
- Fix ABC game redirection to App Store
- Fix audio issues


### Hydra Budding

[App page](https://appshunter.io/ios/app/hydra-budding-edutech-era/id1617053618)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Osmo ABCs free?

Osmo ABCs is free to download, with no in-app purchases.

### Is Hydra Budding free?

Hydra Budding costs $1.99, with no in-app purchases.

### Do Osmo ABCs or Hydra Budding have ads?

Neither Osmo ABCs nor Hydra Budding shows ads.

### Which is updated more often, Osmo ABCs or Hydra Budding?

Osmo ABCs ships an update every 2 months, and Hydra Budding every 44 months. Most recently, Osmo ABCs was updated on October 27, 2026 and Hydra Budding on October 25, 2026.

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