# Growbit vs Astro

The clearest difference is update cadence: Astro at daily against Growbit's monthly. Growbit's advantage is chart position (#183 vs unranked) and iOS requirement (16 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Growbit sells 9 in-app purchases, starting at $9.99 per month and Astro sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Growbit ships an update monthly, Astro daily. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Growbit | Astro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (54 ratings)](https://appshunter.io/ios/app/growbit-daily-micro-learning/id6747403161/reviews)** | — |
| Number of ratings | **54** | — |
| Positive reviews | 13.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#183** | — |
| Size | 255 MB | 119 MB |
| Requires iOS | **16** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Zemeto Ltd.](https://appshunter.io/developer/1648479007) | [Mathias La Rochelle](https://appshunter.io/developer/1865172528) |

## What reviewers say

### Growbit

[App page](https://appshunter.io/ios/app/growbit-daily-micro-learning/id6747403161)

**Currently charting:** #183 Top Free · Education (US App Store)

This app offers short, engaging daily lessons to help you learn new facts and build knowledge without pressure. Transform your screen time into a productive learning habit with bite-sized content across various subjects.

**Highlights:** Bite-sized lessons, Learn new facts daily, Habit building, Multiple topics, Weekly new content, 5-minute lessons

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Unlimited Access Weekly | $9.99 | per 7 days |
| Weekly | $9.99 | per 7 days |
| Weekly | $11.99 | per 7 days |
| Yearly | $35.99 | per year |
| Unlimited access for 3 months | $39.99 | per 3 months |
| Unlimited Yearly Access | $59.99 | per year |
| Yearly | $59.99 | per year |
| Unlimited Yearly Access | $89.99 | per year |


### Astro

[App page](https://appshunter.io/ios/app/astro-space-explorer/id6779288916)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Astro Subscription – Monthly | $1.99 | per month |
| Astro Subscription – Yearly | $19.99 | per year |


## Frequently asked questions

### Is Growbit free?

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

### Is Astro free?

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

### Do Growbit or Astro have ads?

Neither Growbit nor Astro shows ads.

### Which is updated more often, Growbit or Astro?

Growbit ships an update monthly, and Astro daily. Most recently, Growbit was updated on October 15, 2026 and Astro on October 1, 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.*