# Just a Pet Rock vs GridSync

The clearest difference is ads: GridSync at none against Just a Pet Rock's shown. GridSync also leads on monetization model (free vs ad-supported) and ratings volume (5 vs 1). Just a Pet Rock's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.1 vs 18.1). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Just a Pet Rock against 5.0 for GridSync. That said, the two scores are not equally well evidenced: GridSync has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Just a Pet Rock ships an update every 3 weeks, GridSync every 2 months. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Just a Pet Rock | GridSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/just-a-pet-rock/id6757351459/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/gridsync/id6758113727/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 84 MB | 23 MB |
| Requires iOS | **15.1** | 18.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAVIS ANDREW JOHNSON](https://appshunter.io/developer/1866310102) | [Jonathan Tucker](https://appshunter.io/developer/1870708386) |

## What reviewers say

### Just a Pet Rock

[App page](https://appshunter.io/ios/app/just-a-pet-rock/id6757351459)

Care for a virtual pet rock at your own pace in a calming adventure. Feed, clean, and rest your rock as it grows stronger in a whimsical world. This relaxing game offers gentle progression and charming visuals for quiet moments.

**Highlights:** Virtual pet care, Relaxing gameplay, Gentle progression, Whimsical world exploration, Charming visuals

**Features:** macOS Compatibility

**In-app purchases:** none


### GridSync

[App page](https://appshunter.io/ios/app/gridsync/id6758113727)

Engage your mind with a strategic tile-matching puzzle game featuring two distinct modes: timed challenges and move-limited puzzles. Progress through increasingly complex grids and daily challenges, all presented with a clean, minimalist design.

**Highlights:** Timed and moves-limited puzzle modes, Increasing grid sizes and difficulty, Daily challenges, Smooth tile gameplay, Clean, minimalist design

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Just a Pet Rock free?

Just a Pet Rock is free to download, with no in-app purchases.

### Is GridSync free?

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

### Which has better reviews, Just a Pet Rock or GridSync?

Just a Pet Rock and GridSync are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.

### Do Just a Pet Rock or GridSync have ads?

Just a Pet Rock shows ads; GridSync does not.

### Which is updated more often, Just a Pet Rock or GridSync?

Just a Pet Rock ships an update every 3 weeks, and GridSync every 2 months. Most recently, Just a Pet Rock was updated on October 6, 2026 and GridSync on October 12, 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.*