# Reef Busters vs Gem Core

The clearest difference is ads: Gem Core at none against Reef Busters's shown. Gem Core also leads on update cadence (daily vs every 5 days). Reef Busters's advantage is iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Reef Busters sells 21 one-off in-app purchases and Gem Core sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Reef Busters ships an update every 5 days, Gem Core daily. The most recent releases landed on October 18, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Reef Busters | Gem Core |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (247 ratings)](https://appshunter.io/ios/app/reef-busters/id6761402685/reviews)** | — |
| Number of ratings | **247** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 273 MB | 97 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Moon Active](https://appshunter.io/developer/470556954) | [JUMP SHIP MEDIA](https://appshunter.io/developer/1822275657) |

## What reviewers say

### Reef Busters

[App page](https://appshunter.io/ios/app/reef-busters/id6761402685)

Unwind with a satisfying ASMR puzzle adventure where yarn balls unravel intricate patterns. Strategize to clear the board, overcome tricky tangles, and enjoy tactile, crafty fun with a feline twist. Unlock boosters and compete globally in this exciting image unraveler.

**Highlights:** Satisfying ASMR unraveling mechanics, Tactile and crafty puzzle gameplay, Challenging tangles and blockers, Unlockable level boosters, Global leaderboards and competition, Feline-themed characters and fun

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

**In-app purchases (21)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yarn It 2 | $1.99 | one-time |
| Yarn It 3 | $2.99 | one-time |
| Yarn It 5 | $4.99 | one-time |
| Yarn It 6 | $5.99 | one-time |
| Yarn It 7 | $6.99 | one-time |
| Yarn It 8 | $7.99 | one-time |
| Yarn It NoAds 8 | $7.99 | one-time |
| Yarn It 10 | $9.99 | one-time |
| Yarn It 13 | $12.99 | one-time |
| Reef Busters NoAds 14 | $13.99 | one-time |
| Reef Busters NoAds 15 | $14.99 | one-time |
| Yarn It 15 | $14.99 | one-time |
| Reef Busters NoAds 16 | $15.99 | one-time |
| Reef Busters NoAds 17 | $16.99 | one-time |
| Reef Busters NoAds 18 | $17.99 | one-time |
| Reef Busters NoAds 19 | $18.99 | one-time |
| Reef Busters NoAds 20 | $19.99 | one-time |
| Yarn It 20 | $19.99 | one-time |
| Reef Busters 80 | $79.99 | one-time |
| Reef Busters 90 | $89.99 | one-time |
| Reef Busters 100 | $99.99 | one-time |


### Gem Core

[App page](https://appshunter.io/ios/app/gem-core/id6780915980)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 200 Coins | $1.99 | one-time |
| 1000 Coins | $8.99 | one-time |


## Frequently asked questions

### Is Reef Busters free?

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

### Is Gem Core free?

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

### Do Reef Busters or Gem Core have ads?

Reef Busters shows ads; Gem Core does not.

### Which is updated more often, Reef Busters or Gem Core?

Reef Busters ships an update every 5 days, and Gem Core daily. Most recently, Reef Busters was updated on October 18, 2026 and Gem Core 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.*