# おもしろグランプリ  ~まったり大喜利~ vs ウミガメAI

The clearest difference is in-app purchases: ウミガメAI at none against おもしろグランプリ  ~まったり大喜利~'s 1. ウミガメAI also leads on ads (none vs shown). おもしろグランプリ  ~まったり大喜利~'s advantage is update cadence (daily vs monthly) and iOS requirement (14.0 vs 16.4). On price and device support there is nothing between them.

Both are free to download. おもしろグランプリ  ~まったり大喜利~ sells 1 one-off in-app purchase. ウミガメAI asks for nothing beyond the download.

おもしろグランプリ  ~まったり大喜利~ ships an update daily, ウミガメAI monthly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | おもしろグランプリ  ~まったり大喜利~ | ウミガメAI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 153 MB | 53 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Rikuto Hosaka](https://appshunter.io/developer/1621064356) | [Pictors Inc.](https://appshunter.io/developer/1733591285) |

## What reviewers say

### おもしろグランプリ  ~まったり大喜利~

[App page](https://appshunter.io/ios/app/id6738888972)

Engage in solo Oogiri (Japanese improv comedy) with over 600 prompts. An AI evaluates your answers on a 10-point scale, helping you hone your comedic timing and creativity. Enjoy a stress-free experience with optimized ad placement and a special ad-free mode for streamers.

**Highlights:** AI-powered Oogiri evaluation, Over 600 unique prompts, Unlimited answer time, Score-based growth tracking, Simple, intuitive interface, Streamer-exclusive ad-free mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $0.99 | one-time |


### ウミガメAI

[App page](https://appshunter.io/ios/app/ai/id6758776553)

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

**In-app purchases:** none


## Frequently asked questions

### Is おもしろグランプリ  ~まったり大喜利~ free?

おもしろグランプリ  ~まったり大喜利~ is free to download, with in-app purchases available.

### Is ウミガメAI free?

ウミガメAI is free to download, with no in-app purchases.

### Do おもしろグランプリ  ~まったり大喜利~ or ウミガメAI have ads?

おもしろグランプリ  ~まったり大喜利~ shows ads; ウミガメAI does not.

### Which is updated more often, おもしろグランプリ  ~まったり大喜利~ or ウミガメAI?

おもしろグランプリ  ~まったり大喜利~ ships an update daily, and ウミガメAI monthly. Most recently, おもしろグランプリ  ~まったり大喜利~ was updated on October 30, 2026 and ウミガメAI on October 28, 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.*