Comparison

Space Station Passes vs TurtleOps

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Space Station Passes

This app predicts when the International Space Station and Tiangong will pass over your location. It offers detailed sky charts, timely notifications, and a night mode for optimal viewing. Track over 4000 satellites with real-time sky views.

Highlights
  • Satellite pass prediction
  • Interactive sky chart
  • Customizable notifications
  • Night mode
  • Real-time satellite tracking
Features
Read full description

Know when to look up—and where to look. Space Station Passes helps you spot the International Space Station, Tiangong, and other satellites from your chosen location. Plan your next observation with pass forecasts, interactive sky charts, and reminders. • Find your next visible pass: See upcoming passes, their timing, and how high each satellite will appear above the horizon. • Follow the path across the sky: Explore interactive charts with stars, constellations, the Milky Way, and the Moon. • Know the key moments: Check when a satellite rises, reaches its highest visible point, and disappears from view. • Set a reminder: Schedule an alert for the pass you want to watch. • Explore beyond the space stations: Browse thousands of satellites, including bright satellites and recent launches. Explore the live planetarium in the Sky now tab. Search passing satellites, filter by distance or illumination, follow their paths, and report the brightness you observe.

About

TurtleOps

Features
Read full description

TurtleOps is a professional field tool for sea turtle monitoring and conservation. Built for nighttime beach surveys, multi-volunteer teams, and research-grade data. Designed for conservation organizations, research teams, and authorized volunteers participating in permitted sea turtle monitoring programs. • Dark, red-light interface optimized to preserve night vision in the field • Structured turtle encounter forms with three-state tag inspection, PIT barcode scanning, photo capture, and GPS-tagged observations • Offline-first: drafts auto-save and sync when coverage returns • Multi-organization support with role-based access and Row-Level-Security data isolation • Bob, an in-app AI assistant for turtle lookups, research notes, and live weather/tide/moon context • Auto-generated one-page PDF report for every observation, emailed to your team • Survey session tracking with check-in / check-out, team activity feed, and Beach Chat for coordination • Photos saved locally with iOS Files app access for redundant backup

Screenshots

Space Station Passes4 screens
TurtleOps4 screens

Verdict

The call

The clearest difference is update cadence: Space Station Passes at every 2 days against TurtleOps's every 5 weeks. TurtleOps's advantage is iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Space Station Passes ships an update every 2 days, TurtleOps every 5 weeks. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 7 level
Space Station Passes versus TurtleOps: the parameters behind the verdict, then further details
ParameterSpace Station PassesTurtleOps
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size216 MB40 MB
Age rating4+4+
DeveloperSihao LuChristopher Johnson

In-app purchases

None

Space Station Passes

No in-app purchases

None

TurtleOps

No in-app purchases

Questions

Is Space Station Passes free?
Space Station Passes is free to download, with no in-app purchases.
Is TurtleOps free?
TurtleOps is free to download, with no in-app purchases.
Do Space Station Passes or TurtleOps have ads?
Neither Space Station Passes nor TurtleOps shows ads.
Which is updated more often, Space Station Passes or TurtleOps?
Space Station Passes ships an update every 2 days, and TurtleOps every 5 weeks. Most recently, Space Station Passes was updated on October 10, 2026 and TurtleOps on October 16, 2026.

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