# Coozy vs Second Sun

The clearest difference is in-app purchases: Second Sun at none against Coozy's 3. Second Sun also leads on update cadence (every 5 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Coozy sells 3 in-app purchases, starting at $6.99 per month. Second Sun asks for nothing beyond the download.

Coozy ships an update fortnightly, Second Sun every 5 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Coozy | Second Sun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (298 ratings)](https://appshunter.io/ios/app/coozy-baby-milestone-tracker/id6742885026/reviews)** | — |
| Number of ratings | **298** | — |
| Positive reviews | 76.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 85 MB | 34 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Rabbit Apps, Inc.](https://appshunter.io/developer/1838649608) | [MELVIN SHAWN SPRINGS](https://appshunter.io/developer/1895996070) |

## What reviewers say

### Coozy

[App page](https://appshunter.io/ios/app/coozy-baby-milestone-tracker/id6742885026)

This app supports new parents by tracking baby milestones, predicting growth spurts, and offering AI-powered parenting advice. It provides daily activities and expert tips to foster deeper connections and navigate the challenges of early childhood development.

**Highlights:** AI parenting companion, Growth spurt alerts, Milestone tracking, Daily activity ideas, Expert parenting tips, Leap insights

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $6.99 | per month |
| Annual Plan | $39.99 | per year |
| Annual Plan | $39.99 | per year |


### Second Sun

[App page](https://appshunter.io/ios/app/second-sun/id6765566879)

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

**In-app purchases:** none


## Frequently asked questions

### Is Coozy free?

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

### Is Second Sun free?

Second Sun is free to download, with no in-app purchases.

### Do Coozy or Second Sun have ads?

Neither Coozy nor Second Sun shows ads.

### Which is updated more often, Coozy or Second Sun?

Coozy ships an update fortnightly, and Second Sun every 5 days. Most recently, Coozy was updated on October 30, 2026 and Second Sun on October 31, 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.*