# Flight parameters vs World Time Clock Master

The clearest difference is price: World Time Clock Master at Free against Flight parameters's $2.99. Flight parameters's advantage is in-app purchases (none vs 13) and iOS requirement (15.4 vs 17.0). On update cadence, ads and device support there is nothing between them.

World Time Clock Master is free to download; Flight parameters costs $2.99 up front. World Time Clock Master sells 10 in-app purchases, starting at $2.99 per month. Flight parameters asks for nothing beyond the download.

Flight parameters ships an update every 3 weeks, World Time Clock Master fortnightly. Both last shipped on October 12, 2026.

## The numbers

| Metric | Flight parameters | World Time Clock Master |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[4.6 (816 ratings)](https://appshunter.io/ios/app/world-time-clock-master/id6448859727/reviews)** |
| Number of ratings | — | **816** |
| Positive reviews | — | 65.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Subscription |
| Size | 1 MB | 236 MB |
| Requires iOS | **15.4** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Konstantinos Ladiellis](https://appshunter.io/developer/1516103440) | [Alex Komarov Inc.](https://appshunter.io/developer/364741805) |

## What reviewers say

### Flight parameters

[App page](https://appshunter.io/ios/app/flight-parameters/id1623908949)

**Features:** macOS Compatibility

**In-app purchases:** none


### World Time Clock Master

[App page](https://appshunter.io/ios/app/world-time-clock-master/id6448859727)

Effortlessly manage multiple time zones with this app. Convert times instantly, schedule events, and view global clocks at a glance with interactive widgets. Features atomic accuracy and a vast database of locations.

**Highlights:** Multiple time zone display, Interactive time conversion, Event scheduling, Atomic time accuracy, Dynamic home screen widgets, List mode for text view, Real moon phases and sunrise/sunset

**Features:** Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month | $2.99 | per month |
| 3 months | $3.99 | per 3 months |
| 1 year | $11.99 | per year |
| 1 year | $11.99 | per year |
| 1 year | $11.99 | per year |
| 1 year | $19.99 | per year |
| Lifetime | $29.99 | one-time |
| Lifetime | $49.99 | one-time |
| Lifetime | $79.99 | one-time |
| Lifetime | $99.99 | one-time |

**What reviewers like**

- 🚀 Delightful scheduling assistance
- 👍 Feature improvement
- 👍 The best Timezone helper
- 👍 One of the best clocks around
- 👍 The Widget is so damn cool!

**What reviewers complain about**

- 🐛 Problemas al actualizar
- 🐛 Sticky signup interface
- 🐛 Demo not enough
- 🔒 NOT A FREE APP
- 💰 Terrible monetisation model compared to previous app

**Reported bugs**

- Lose all the registered locations after updating the app
- Sticky signup interface
- Widget doesn't work
- GMT and London currently have a 1 hour time difference between the two locations, but the app shows them the same time

**Requested features**

- Add the time difference in hours between the default location and other locations in both the widget and the app
- See my calendar events on the dial
- Make a paid tier that doesn't collect my data
- Add new event to a Calendar


## Frequently asked questions

### Is Flight parameters free?

Flight parameters costs $2.99, with no in-app purchases.

### Is World Time Clock Master free?

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

### Do Flight parameters or World Time Clock Master have ads?

Neither Flight parameters nor World Time Clock Master shows ads.

### Which is updated more often, Flight parameters or World Time Clock Master?

Flight parameters ships an update every 3 weeks, and World Time Clock Master fortnightly. Most recently, Flight parameters was updated on October 12, 2026 and World Time Clock Master on October 12, 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.*