# Jiiya Roll vs Gem Forge

The clearest difference is price: Gem Forge at Free against Jiiya Roll's $0.39. Gem Forge also leads on iOS requirement (15.0 vs 18.0). Jiiya Roll's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

Gem Forge is free to download; Jiiya Roll costs $0.39 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly daily. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Jiiya Roll | Gem Forge |
| --- | --- | --- |
| Price | $0.39 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Daily | Daily |
| Size | 15 MB | 129 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Makoto Fukuoka](https://appshunter.io/developer/1817908735) | [RandomGG, Inc.](https://appshunter.io/developer/1881931008) |

## What reviewers say

### Jiiya Roll

[App page](https://appshunter.io/ios/app/jiiya-roll/id6765972725)

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

**In-app purchases:** none


### Gem Forge

[App page](https://appshunter.io/ios/app/gem-forge-diamond-enhance/id6768584159)

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

**In-app purchases:** none


## Frequently asked questions

### Is Jiiya Roll free?

Jiiya Roll costs $0.39, with no in-app purchases.

### Is Gem Forge free?

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

### Do Jiiya Roll or Gem Forge have ads?

Gem Forge shows ads; Jiiya Roll does not.

### Which is updated more often, Jiiya Roll or Gem Forge?

Jiiya Roll ships an update daily, and Gem Forge daily. Most recently, Jiiya Roll was updated on November 6, 2026 and Gem Forge 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.*