# ISS Tracker vs FlipClock Pro

The clearest difference is price: ISS Tracker at Free against FlipClock Pro's $0.99. FlipClock Pro's advantage is iOS requirement (17.0 vs 26.0). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

ISS Tracker is free to download; FlipClock Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ISS Tracker ships an update weekly, FlipClock Pro every 2 weeks. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ISS Tracker | FlipClock Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (19 ratings)](https://appshunter.io/ios/app/iss-tracker-space-station/id6740058138/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | **Free** | Paid |
| Size | 15 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lucent Enterprises Ltd.](https://appshunter.io/developer/1448644115) | [Onkar Adesh Nirhali](https://appshunter.io/developer/6797665810) |

## What reviewers say

### ISS Tracker

[App page](https://appshunter.io/ios/app/iss-tracker-space-station/id6740058138)

Monitor the International Space Station's live position and vital telemetry data in real-time. Track its orbit, altitude, velocity, and internal environmental systems. Ideal for space enthusiasts and students interested in space exploration.

**Highlights:** Real-time ISS position tracking, Interactive world map, Altitude and velocity data, Comprehensive telemetry monitoring, Environmental and power system data, Dark mode support

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

**In-app purchases:** none


### FlipClock Pro

[App page](https://appshunter.io/ios/app/flipclock-pro/id6797665808)

Experience a realistic split-flap digital clock on your iPhone and iPad. Customize themes, fonts, and colors, and set multiple clocks with different timezones. Includes countdown, alarm, and Pomodoro timers.

**Highlights:** Realistic flip animation, Customizable themes and colors, Multiple font styles, Up to 4 clocks with different timezones, Countdown timer, Alarm function, Pomodoro timer

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

**In-app purchases:** none


## Frequently asked questions

### Is ISS Tracker free?

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

### Is FlipClock Pro free?

FlipClock Pro costs $0.99, with no in-app purchases.

### Do ISS Tracker or FlipClock Pro have ads?

Neither ISS Tracker nor FlipClock Pro shows ads.

### Which is updated more often, ISS Tracker or FlipClock Pro?

ISS Tracker ships an update weekly, and FlipClock Pro every 2 weeks. Most recently, ISS Tracker was updated on October 24, 2026 and FlipClock Pro on October 13, 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.*