# Pin Rin 3D vs Crystal Dig

The clearest difference is in-app purchases: Pin Rin 3D at none against Crystal Dig's 7. Pin Rin 3D also leads on update cadence (daily vs every 4 days) and iOS requirement (11.0 vs 15.0). Crystal Dig's advantage is ratings volume (3 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. Crystal Dig sells 7 one-off in-app purchases. Pin Rin 3D asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Pin Rin 3D against 5.0 for Crystal Dig. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Pin Rin 3D ships an update daily, Crystal Dig every 4 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Pin Rin 3D | Crystal Dig |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/pin-rin-3d/id6468481562/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/crystal-dig-gem-miner/id6758684744/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 4 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 99 MB | 145 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amirahmad Bornaee](https://appshunter.io/developer/1470193167) | [Taco Truck Games](https://appshunter.io/developer/1203933681) |

## What reviewers say

### Pin Rin 3D

[App page](https://appshunter.io/ios/app/pin-rin-3d/id6468481562)

Engage in a colorful ring-matching puzzle game. Strategically click on rings to match three of the same color, making them disappear. Enjoy hours of addictive, visually vibrant gameplay with enchanting sound effects.

**Highlights:** Match three rings of the same color, Strategic move planning, Chain reaction opportunities, Vibrant ring colors, Enchanting sound effects, Increasing challenge

**In-app purchases:** none


### Crystal Dig

[App page](https://appshunter.io/ios/app/crystal-dig-gem-miner/id6758684744)

Embark on an underground expedition combining classic block puzzle gameplay with a mining adventure. Descend through handcrafted levels, battle geological bosses, and collect rare gems. Compete for high scores and unlock achievements in this crystal-themed puzzle experience.

**Highlights:** Classic and Adventure game modes, 50 handcrafted adventure levels, 5 unique underground zones, Epic boss battles, Power-ups: Pickaxe, Shuffle, Undo, Gem collection with rarity tracking, 21 Game Center achievements

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Crystals | $0.99 | one-time |
| Pouch of Crystals | $2.99 | one-time |
| Remove Banner Ads | $3.99 | one-time |
| Starter Pack | $4.99 | one-time |
| Sack of Crystals | $4.99 | one-time |
| Chest of Crystals | $9.99 | one-time |
| Vault of Crystals | $19.99 | one-time |


## Frequently asked questions

### Is Pin Rin 3D free?

Pin Rin 3D is free to download, with no in-app purchases.

### Is Crystal Dig free?

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

### Which has better reviews, Pin Rin 3D or Crystal Dig?

Pin Rin 3D and Crystal Dig are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Pin Rin 3D or Crystal Dig have ads?

Both Pin Rin 3D and Crystal Dig show ads.

### Which is updated more often, Pin Rin 3D or Crystal Dig?

Pin Rin 3D ships an update daily, and Crystal Dig every 4 days. Most recently, Pin Rin 3D was updated on October 21, 2026 and Crystal Dig on October 25, 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.*