# Chronos Logger vs ISS Tracker

The clearest difference is update cadence: ISS Tracker at weekly against Chronos Logger's fortnightly. Chronos Logger's advantage is iOS requirement (16.4 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Chronos Logger ships an update fortnightly, ISS Tracker weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Chronos Logger | ISS Tracker |
| --- | --- | --- |
| Price | Free | Free |
| 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 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | — | Free |
| Size | 1 MB | 15 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ace AUTHORS](https://appshunter.io/developer/1466925638) | [Lucent Enterprises Ltd.](https://appshunter.io/developer/1448644115) |

## What reviewers say

### Chronos Logger

[App page](https://appshunter.io/ios/app/chronos-logger/id6462799133)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Chronos Logger free?

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

### Is ISS Tracker free?

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

### Do Chronos Logger or ISS Tracker have ads?

Neither Chronos Logger nor ISS Tracker shows ads.

### Which is updated more often, Chronos Logger or ISS Tracker?

Chronos Logger ships an update fortnightly, and ISS Tracker weekly. Most recently, Chronos Logger was updated on October 27, 2026 and ISS Tracker on October 28, 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.*