# Time Difference Converter vs AlphaTime

The clearest difference is in-app purchases: Time Difference Converter at none against AlphaTime's 1. Time Difference Converter also leads on update cadence (weekly vs fortnightly). AlphaTime's advantage is ads (none vs shown) and iOS requirement (15.1 vs 17.6). On price and device support there is nothing between them.

Both are free to download. AlphaTime sells 1 in-app purchase, starting at $0.99 per month. Time Difference Converter asks for nothing beyond the download.

Time Difference Converter ships an update weekly, AlphaTime fortnightly. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Time Difference Converter | AlphaTime |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Size | 7 MB | 27 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alper Sumer Guc](https://appshunter.io/developer/1896672915) | [JEN EVANS TRUSHEVSKA](https://appshunter.io/developer/6805593446) |

## What reviewers say

### Time Difference Converter

[App page](https://appshunter.io/ios/app/time-difference-converter/id6773206221)

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

**In-app purchases:** none


### AlphaTime

[App page](https://appshunter.io/ios/app/alphatime-world-clock/id6805593444)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AlphaTime Premium | $0.99 | per month |


## Frequently asked questions

### Is Time Difference Converter free?

Time Difference Converter is free to download, with no in-app purchases.

### Is AlphaTime free?

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

### Do Time Difference Converter or AlphaTime have ads?

Time Difference Converter shows ads; AlphaTime does not.

### Which is updated more often, Time Difference Converter or AlphaTime?

Time Difference Converter ships an update weekly, and AlphaTime fortnightly. Most recently, Time Difference Converter was updated on October 5, 2026 and AlphaTime on October 11, 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.*