# OnceWorld vs Cool x Cool

The clearest difference is price: OnceWorld at Free against Cool x Cool's $1.99. OnceWorld also leads on update cadence (every 2 days vs every 3 months) and iOS requirement (15.0 vs 18). Cool x Cool's advantage is in-app purchases (none vs 6) and ads (none vs shown). On device support there is nothing between them.

OnceWorld is free to download; Cool x Cool costs $1.99 up front. OnceWorld sells 6 one-off in-app purchases. Cool x Cool asks for nothing beyond the download.

OnceWorld ships an update every 2 days, Cool x Cool every 3 months. The most recent releases landed on October 25, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | OnceWorld | Cool x Cool |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.9 (132 ratings)](https://appshunter.io/ios/app/onceworld/id6753948618/reviews)** | — |
| Number of ratings | **132** | — |
| Positive reviews | 58.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 325 MB | 300 MB |
| Requires iOS | **15.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [PONIX LLC](https://appshunter.io/developer/1071402258) | [NewfrontiaSoftware](https://appshunter.io/developer/1848583747) |

## What reviewers say

### OnceWorld

[App page](https://appshunter.io/ios/app/onceworld/id6753948618)

Experience a nostalgic 2D solo RPG that blends classic MMO charm with modern mobile convenience. Level up, customize your character with stat distribution, enhance gear, collect pets, and battle through a deep progression system.

**Highlights:** Stat distribution for character customization, Equipment enhancement and set bonuses, Monster capture and pet raising, Material collection for crafting and upgrades, Reincarnation system for continued growth, Abyss Corridor ranked mode

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crystals 10 | $0.99 | one-time |
| Crystal 50 | $4.99 | one-time |
| Crystal 150 | $14.99 | one-time |
| Crystal 300 | $29.99 | one-time |
| Crystal 600 | $59.99 | one-time |
| Crystal 1000 | $99.99 | one-time |


### Cool x Cool

[App page](https://appshunter.io/ios/app/cool-x-cool/id6754513046)

Experience the daily lives of three university students in Tokyo. Follow the stories of Reika, Miyako, and Midori as you uncover their cool and cute interactions. This is an iOS port of a 2016 visual novel.

**Highlights:** University student life simulation, Character-driven story, Visual novel gameplay, iOS port of a classic title, Engaging narrative

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

**In-app purchases:** none


## Frequently asked questions

### Is OnceWorld free?

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

### Is Cool x Cool free?

Cool x Cool costs $1.99, with no in-app purchases.

### Do OnceWorld or Cool x Cool have ads?

OnceWorld shows ads; Cool x Cool does not.

### Which is updated more often, OnceWorld or Cool x Cool?

OnceWorld ships an update every 2 days, and Cool x Cool every 3 months. Most recently, OnceWorld was updated on October 25, 2026 and Cool x Cool on September 26, 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.*