# 忘れんぼうAI vs ForestLibrary

The clearest difference is in-app purchases: 忘れんぼうAI at none against ForestLibrary's 3. 忘れんぼうAI also leads on ads (none vs shown) and iOS requirement (10.0 vs 13.0). ForestLibrary's advantage is review sentiment (100% vs 87%) and update cadence (every 3 days vs weekly). On price and device support there is nothing between them.

Both are free to download. ForestLibrary sells 3 one-off in-app purchases. 忘れんぼうAI asks for nothing beyond the download.

忘れんぼうAI ships an update weekly, ForestLibrary every 3 days. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 忘れんぼうAI | ForestLibrary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (47 ratings)](https://appshunter.io/ios/app/forestlibrary/id6738334831/reviews)** |
| Number of ratings | — | **47** |
| Positive reviews | 86.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 357 MB | 207 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hidehiro Nakamura](https://appshunter.io/developer/1090415061) | [Akina Kubota](https://appshunter.io/developer/988867741) |

## What reviewers say

### 忘れんぼうAI

[App page](https://appshunter.io/ios/app/ai/id1548180206)

Experience a peculiar and mysterious story in this short visual novel and puzzle game. You play as an ordinary company employee tasked with training an AI, leading to unexpected and strange events. Enjoy unique visuals and engaging puzzles.

**Highlights:** Short visual novel and puzzle gameplay, Engaging and mysterious story, Pencil puzzle (one-stroke drawing) mechanics, Unique collage-like visual style, Playable in 30-60 minutes

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

**In-app purchases:** none


### ForestLibrary

[App page](https://appshunter.io/ios/app/forestlibrary/id6738334831)

Explore a mysterious forest library to uncover its hidden secrets. This casual escape game offers a charming atmosphere, helpful hints, and an auto-save feature for a relaxed puzzle-solving experience. Discover clues, use items, and combine them to progress through the game.

**Highlights:** Cute and charming atmosphere, Beginner-friendly escape game, In-game hints and answers, Auto-save progress, Item combination and usage, In-game camera function

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AdBlock1 | $0.49 | one-time |
| AdBlock2 | $1.99 | one-time |
| AdBlock3 | $2.99 | one-time |


## Frequently asked questions

### Is 忘れんぼうAI free?

忘れんぼうAI is free to download, with no in-app purchases.

### Is ForestLibrary free?

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

### Do 忘れんぼうAI or ForestLibrary have ads?

ForestLibrary shows ads; 忘れんぼうAI does not.

### Which is updated more often, 忘れんぼうAI or ForestLibrary?

忘れんぼうAI ships an update weekly, and ForestLibrary every 3 days. Most recently, 忘れんぼうAI was updated on October 9, 2026 and ForestLibrary on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*