# Zonium vs FlyETA

The clearest difference is in-app purchases: FlyETA at none against Zonium's 1. Zonium's advantage is update cadence (weekly vs monthly) and iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Zonium sells 1 in-app purchase, starting at $5.99 per month. FlyETA asks for nothing beyond the download.

Zonium ships an update weekly, FlyETA monthly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Zonium | FlyETA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/zonium-timezone-converter/id6617216986/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 198 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [InVooDoo LLC](https://appshunter.io/developer/1173246186) | [Mykola Bubelich](https://appshunter.io/developer/6801483391) |

## What reviewers say

### Zonium

[App page](https://appshunter.io/ios/app/zonium-timezone-converter/id6617216986)

Easily convert timezones, check weather forecasts, and visualize time differences globally. Plan meetings and trips with confidence using features like timezone overlap views and availability checkers. Enjoy beautiful day/night visualizations and custom zone naming for a personalized experience.

**Highlights:** Timezone conversion for past, present, future, Weather forecasts up to 10 days, Timezone overlap visualization, Availability checker, Day & night visualization, Custom zone naming, Calendar event integration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InVooDoo One | $5.99 | per month |


### FlyETA

[App page](https://appshunter.io/ios/app/flyeta-3d-flight-map-tracker/id6801483389)

**Features:** iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Zonium free?

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

### Is FlyETA free?

FlyETA is free to download, with no in-app purchases.

### Do Zonium or FlyETA have ads?

Neither Zonium nor FlyETA shows ads.

### Which is updated more often, Zonium or FlyETA?

Zonium ships an update weekly, and FlyETA monthly. Most recently, Zonium was updated on October 24, 2026 and FlyETA on October 31, 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.*