# Hubble Learning vs Wondergrade

The clearest difference is ads: Wondergrade at none against Hubble Learning's shown. Wondergrade also leads on ratings volume (37 vs 10). Hubble Learning's advantage is update cadence (every 5 days vs every 6 weeks) and rating (4.8 vs 4.5). On price, review sentiment, in-app purchases and monetization model there is nothing between them.

Both are free to download. Hubble Learning sells 2 in-app purchases, starting at $7.99 per month and Wondergrade sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Hubble Learning holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 10 and 37 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Hubble Learning ships an update every 5 days, Wondergrade every 6 weeks. The most recent releases landed on September 14, 2026 and June 21, 2026 respectively.

## The numbers

| Metric | Hubble Learning | Wondergrade |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/hubble-learning/id1447315085/reviews)** | [4.5 (37 ratings)](https://appshunter.io/ios/app/wondergrade-learning-emotions/id1529200729/reviews) |
| Number of ratings | 10 | **37** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 106 MB | 207 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hubble Learning Inc](https://appshunter.io/developer/1447315083) | [Wondergrade LLC](https://appshunter.io/developer/1529200731) |

## What reviewers say

### Hubble Learning

[App page](https://appshunter.io/ios/app/hubble-learning/id1447315085)

Embark on a space adventure to develop crucial life skills. This app offers interactive activities and guided conversations for children aged 5-10 and their caregivers, fostering parent-child bonding and real-world social-emotional learning.

**Highlights:** Intergalactic space adventure theme, Focus on life skills (goal-setting, kindness, etc.), Parent-child co-pilot experience, Guided conversations and interactive activities, Reward system for progress, Research-backed by Harvard Graduate School of Education

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hubble Monthly Subscription | $7.99 | per month |
| Hubble Yearly Subscription | $34.99 | per year |


### Wondergrade

[App page](https://appshunter.io/ios/app/wondergrade-learning-emotions/id1529200729)

This app helps parents and children aged 3-8 explore and manage emotions through interactive stories, games, and audio guides. It provides practical advice for emotional well-being and offers tools for self-regulation and restful sleep.

**Highlights:** Read-aloud emotional learning books, Interactive games for self-regulation, Guided audio stories for sleep, Parental guidance and scripts, Mindfulness exercises for children, Strategies for managing emotions

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $9.99 | per month |
| All Access | $39.99 | per year |


## Frequently asked questions

### Is Hubble Learning free?

Hubble Learning is free to download, with in-app purchases available.

### Is Wondergrade free?

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

### Which has better reviews, Hubble Learning or Wondergrade?

Hubble Learning is rated higher. Hubble Learning averages 4.8 out of 5 from 10 ratings, while Wondergrade averages 4.5 from 37 ratings.

### Do Hubble Learning or Wondergrade have ads?

Hubble Learning shows ads; Wondergrade does not.

### Which is updated more often, Hubble Learning or Wondergrade?

Hubble Learning ships an update every 5 days, and Wondergrade every 6 weeks. Most recently, Hubble Learning was updated on September 14, 2026 and Wondergrade on June 21, 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.*