# Caltrain Commuter vs ISS Flyover

The clearest difference is price: ISS Flyover at Free against Caltrain Commuter's $3.99. Caltrain Commuter's advantage is chart position (#175 vs unranked) and device support (3 vs 1). On update cadence, ads and in-app purchases there is nothing between them.

ISS Flyover is free to download; Caltrain Commuter costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Caltrain Commuter ships an update every 2 weeks, ISS Flyover fortnightly. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Caltrain Commuter | ISS Flyover |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/caltrain-commuter/id6451088085/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Paid | — |
| Best chart rank | **#175** | — |
| Size | 23 MB | 10 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Noah Listgarten](https://appshunter.io/developer/1696527961) | [Yannis Perrier](https://appshunter.io/developer/1895880776) |

## What reviewers say

### Caltrain Commuter

[App page](https://appshunter.io/ios/app/caltrain-commuter/id6451088085)

**Currently charting:** #175 Top Paid · Navigation (US App Store)

Plan your train journeys with real-time updates on schedules, delays, and alerts. Customize notifications for your commute and Clipper card. Access comprehensive train status information directly from your device.

**Highlights:** Real-time train status, Customizable notifications, Schedule viewing, Delay information, Clipper card alerts, System-wide alerts

**Features:** macOS Compatibility

**In-app purchases:** none


### ISS Flyover

[App page](https://appshunter.io/ios/app/iss-flyover/id6764692010)

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

**In-app purchases:** none


## Frequently asked questions

### Is Caltrain Commuter free?

Caltrain Commuter costs $3.99, with no in-app purchases.

### Is ISS Flyover free?

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

### Do Caltrain Commuter or ISS Flyover have ads?

Neither Caltrain Commuter nor ISS Flyover shows ads.

### Which is updated more often, Caltrain Commuter or ISS Flyover?

Caltrain Commuter ships an update every 2 weeks, and ISS Flyover fortnightly. Most recently, Caltrain Commuter was updated on October 27, 2026 and ISS Flyover 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.*