# Time Difference Converter vs ZoneFlip

The clearest difference is in-app purchases: Time Difference Converter at none against ZoneFlip's 1. Time Difference Converter also leads on update cadence (weekly vs every 3 weeks) and iOS requirement (17.6 vs 26.0). ZoneFlip's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. ZoneFlip sells 1 one-off in-app purchase. Time Difference Converter asks for nothing beyond the download.

Time Difference Converter ships an update weekly, ZoneFlip every 3 weeks. The most recent releases landed on October 5, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Time Difference Converter | ZoneFlip |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 7 MB | 0 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alper Sumer Guc](https://appshunter.io/developer/1896672915) | [永 张](https://appshunter.io/developer/1806535769) |

## 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


### ZoneFlip

[App page](https://appshunter.io/ios/app/zoneflip/id6785983114)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ZoneFlip Pro | $4.99 | one-time |


## Frequently asked questions

### Is Time Difference Converter free?

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

### Is ZoneFlip free?

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

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

Time Difference Converter shows ads; ZoneFlip does not.

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

Time Difference Converter ships an update weekly, and ZoneFlip every 3 weeks. Most recently, Time Difference Converter was updated on October 5, 2026 and ZoneFlip on September 30, 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.*