# AI Note before forgetting vs World Time Calc

The clearest difference is rating: World Time Calc at 5.0 against AI Note before forgetting's 4.4. AI Note before forgetting's advantage is in-app purchases (none vs 1) and ratings volume (10 vs 1). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. World Time Calc sells 1 one-off in-app purchase. AI Note before forgetting asks for nothing beyond the download.

World Time Calc holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: AI Note before forgetting has 10 ratings behind it against 1, so its average is the more settled of the two.

AI Note before forgetting ships an update every 2 months, World Time Calc every 6 weeks. The most recent releases landed on October 8, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | AI Note before forgetting | World Time Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (10 ratings)](https://appshunter.io/ios/app/ai-note-before-forgetting/id1541774073/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/world-time-calc-time-converter/id6472414655/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 7 MB | 10 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hideshi Otsuru](https://appshunter.io/developer/446092368) | [Hajime Suzuki](https://appshunter.io/developer/1615906018) |

## What reviewers say

### AI Note before forgetting

[App page](https://appshunter.io/ios/app/ai-note-before-forgetting/id1541774073)

Capture your thoughts and ideas with this app. It allows you to save notes, add location details like address and weather, and even attach photos and videos. AI features can help generate ideas, summarize, and proofread your entries.

**Highlights:** AI-powered idea generation, Note summarization and proofreading, Automatic location data (date, time, address, weather), Add photos and videos to notes, Folder organization, Search functionality, Note sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### World Time Calc

[App page](https://appshunter.io/ios/app/world-time-calc-time-converter/id6472414655)

Visualize day/night cycles and working hours across different cities with an interactive timeline. Receive custom notifications for sunrise and sunset. Manually adjust work hours for precise scheduling.

**Highlights:** Day/night and working hour graphs, Automatic time updates, Manual work hour adjustment, Interactive time cursor, Sunrise/sunset alarm notifications

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PremiumPlan | $7.99 | one-time |


## Frequently asked questions

### Is AI Note before forgetting free?

AI Note before forgetting is free to download, with no in-app purchases.

### Is World Time Calc free?

World Time Calc is free to download, with in-app purchases available.

### Which has better reviews, AI Note before forgetting or World Time Calc?

World Time Calc is rated higher. AI Note before forgetting averages 4.4 out of 5 from 10 ratings, while World Time Calc averages 5.0 from 1 ratings.

### Do AI Note before forgetting or World Time Calc have ads?

Both AI Note before forgetting and World Time Calc show ads.

### Which is updated more often, AI Note before forgetting or World Time Calc?

AI Note before forgetting ships an update every 2 months, and World Time Calc every 6 weeks. Most recently, AI Note before forgetting was updated on October 8, 2026 and World Time Calc on October 23, 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.*