# Def Init vs 時渡り 日本史・世界史RPG

The clearest difference is in-app purchases: Def Init at none against 時渡り 日本史・世界史RPG's 1. Def Init also leads on iOS requirement (15.0 vs 17.0). 時渡り 日本史・世界史RPG's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. 時渡り 日本史・世界史RPG sells 1 one-off in-app purchase. Def Init asks for nothing beyond the download.

Def Init ships an update every 3 weeks, 時渡り 日本史・世界史RPG every 2 days. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Def Init | 時渡り 日本史・世界史RPG |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 225 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [DeMiA](https://appshunter.io/developer/1541788198) | [SNAPLACE LLC](https://appshunter.io/developer/6790258232) |

## What reviewers say

### Def Init

[App page](https://appshunter.io/ios/app/def-init/id6746444302)

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

**In-app purchases:** none


### 時渡り 日本史・世界史RPG

[App page](https://appshunter.io/ios/app/rpg/id6790258230)

Embark on an adventure through history with this educational RPG. Learn by experiencing historical events and interacting with figures from different eras. Optimize your learning with受験 modes tailored to your academic goals.

**Highlights:** Interactive historical RPG gameplay, 受験 modes for tailored learning, Covers ancient to modern Japanese and world history, Detailed historical landmarks and figures, Engaging mini-games and turn-based battles, Collectible term cards for competitive play

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全章解放パック | $9.99 | one-time |


## Frequently asked questions

### Is Def Init free?

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

### Is 時渡り 日本史・世界史RPG free?

時渡り 日本史・世界史RPG is free to download, with in-app purchases available.

### Do Def Init or 時渡り 日本史・世界史RPG have ads?

Neither Def Init nor 時渡り 日本史・世界史RPG shows ads.

### Which is updated more often, Def Init or 時渡り 日本史・世界史RPG?

Def Init ships an update every 3 weeks, and 時渡り 日本史・世界史RPG every 2 days. Most recently, Def Init was updated on November 8, 2026 and 時渡り 日本史・世界史RPG on November 13, 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.*