Caltrain Commuter vs ISS Flyover
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caltrain Commuter
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.
- Real-time train status
- Customizable notifications
- Schedule viewing
- Delay information
- Clipper card alerts
- System-wide alerts
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- Set up your commute and your watched trains. - Customize your notifications. - Set monthly clipper card notifications. - Customize your home page. - See Caltrain’s status, system-wide and specific alerts, and upcoming schedule changes. - Use the schedule page to see upcoming trains, trains for the whole day, or trains on a different date, with real-time data included. - Full scrollable timetable. - Accurate, up-to-date realtime data for all trains, regardless of whether the train is reporting location or not. - Delay information including holding times and delay trends (whether the delay is increasing or decreasing). - Schedule automatically updates every time the app is opened – no need for an app update! - No ads, no subscriptions. Data is provided by 511.org. Caltrain Commuter is an independently developed app and is not affiliated with Caltrain, the PCJPB, or any Caltrain-related entity.
ISS Flyover
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ISS Flyover helps you track the International Space Station from your iPhone. See the current ISS position on a map, understand where it is relative to your location, and check upcoming visible flyovers from your sky. The app can also prepare alerts before visible passes, with widgets and Live Activities to keep the next flyover close at hand. No account is required. ISS Flyover is free and focused on one job: making ISS passes easier to anticipate.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Caltrain Commuter | ISS Flyover |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #175 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 23 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Noah Listgarten | Yannis Perrier |
In-app purchases
Caltrain Commuter
No in-app purchases
ISS Flyover
No in-app purchases






