# ISS Detector vs Capxule

The clearest difference is ads: Capxule at none against ISS Detector's shown. Capxule also leads on update cadence (every 3 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ISS Detector sells 11 in-app purchases, starting at $0.99 per month and Capxule sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ISS Detector ships an update monthly, Capxule every 3 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ISS Detector | Capxule |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (708 ratings)](https://appshunter.io/ios/app/iss-detector/id1198597805/reviews)** | — |
| Number of ratings | **708** | — |
| Positive reviews | 55.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 13 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Derk Vrijdag](https://appshunter.io/developer/1198597804) | [Contextvy LLC](https://appshunter.io/developer/979072667) |

## What reviewers say

### ISS Detector

[App page](https://appshunter.io/ios/app/iss-detector/id1198597805)

Easily track the International Space Station and other satellites. Receive timely alarms before passes and get weather condition checks for optimal viewing. Enhance functionality with optional in-app purchases to discover more celestial objects.

**Highlights:** ISS tracking and alerts, Weather condition checks, Alarm notifications, Track Starlink trains, Track Hubble telescope, Track amateur radio satellites

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | per month |
| Donation | $1.99 | per month |
| Premium Access | $1.99 | per month |
| Premium Access | $2.99 | per year |
| Premium Access | $5.99 | per year |
| Donation | $5.99 | per year |
| Premium Access | $11.99 | per year |
| Starlink and Famous objects | $3.99 | one-time |
| Amateur Radio Satellites | $3.99 | one-time |
| Comets and Planets | $3.99 | one-time |
| Combo package | $5.99 | one-time |


### Capxule

[App page](https://appshunter.io/ios/app/capxule/id6805278107)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Capxule Pro | $2.99 | per month |
| Capxule Premium | $9.99 | per month |


## Frequently asked questions

### Is ISS Detector free?

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

### Is Capxule free?

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

### Do ISS Detector or Capxule have ads?

ISS Detector shows ads; Capxule does not.

### Which is updated more often, ISS Detector or Capxule?

ISS Detector ships an update monthly, and Capxule every 3 days. Most recently, ISS Detector was updated on October 26, 2026 and Capxule on October 24, 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.*