# KnowMine vs World Time Map

The clearest difference is in-app purchases: World Time Map at none against KnowMine's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. KnowMine sells 2 in-app purchases, starting at $1.99 per month. World Time Map asks for nothing beyond the download.

KnowMine ships an update every 6 weeks, World Time Map every 2 months. The most recent releases landed on September 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | KnowMine | World Time Map |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 245 MB | 63 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LITTLECAKEMEDIA](https://appshunter.io/developer/1823046522) | [YOSHIKI OSHIMA](https://appshunter.io/developer/1824812123) |

## What reviewers say

### KnowMine

[App page](https://appshunter.io/ios/app/knowmine/id6747834204)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $19.99 | per year |


### World Time Map

[App page](https://appshunter.io/ios/app/world-time-map-time-zone/id6759241680)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KnowMine free?

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

### Is World Time Map free?

World Time Map is free to download, with no in-app purchases.

### Do KnowMine or World Time Map have ads?

Both KnowMine and World Time Map show ads.

### Which is updated more often, KnowMine or World Time Map?

KnowMine ships an update every 6 weeks, and World Time Map every 2 months. Most recently, KnowMine was updated on September 12, 2026 and World Time Map on October 1, 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.*