Comparison

ISS Tracker vs pocketScreen

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

Head to head
About

ISS Tracker

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
Read full description

ISS Tracker: Real-Time Space Station Monitor Experience the International Space Station like never before with our comprehensive real-time tracking and telemetry monitoring app. Perfect for space enthusiasts, students, and anyone fascinated by space exploration. KEY FEATURES: LIVE TRACKING & ORBIT • Real-time ISS position tracking on an interactive world map • Current altitude, velocity, and orbital period • Precise latitude and longitude coordinates • Customizable map views (Standard & Satellite) COMPREHENSIVE TELEMETRY • Position & Attitude: Real-time altitude, velocity, yaw, pitch, and roll • Environmental Systems: O₂ levels, CO₂ levels, cabin pressure, and temperature • Power Systems: CMG momentum and status • Thermal Control: Loop A/B temperature and flow rates • Water Management: Clean water, waste water, and urine tank levels • Cooling Systems: Avionics and air cooling temperatures • Oxygen Supply: O₂ and N₂ tank pressure readings • Node Systems: Avionics temperature monitoring • EVA Systems: EMU voltage and current readings • Communications: Ku-Band status and video channels SMART FEATURES • Dark mode support for comfortable viewing • Intuitive interface designed for space enthusiasts • Real-time data updates • Professional-grade accuracy EDUCATIONAL VALUE: Perfect for: • STEM students learning about space technology • Space enthusiasts tracking ISS operations • Teachers demonstrating orbital mechanics • Anyone interested in space station operations Stay connected with humanity's outpost in space. Download ISS Tracker now and monitor the International Space Station's vital signs in real-time. Note: This app uses official telemetry data to provide accurate information about the International Space Station's systems and position.

About

pocketScreen

Features
Read full description

SCREEN STREAMING WITH APP AUDIO, MICROPHONE AND LOCAL RECORDING pocketScreen is a free streaming app for iPhone that lets you broadcast your screen directly via SRT, RTMP or RTMPS — no capture card or extra computer required. Share apps during an IRL stream, stream mobile games, or broadcast tutorials and presentations straight from your phone. Your screen. Your stream. In your pocket. SRT, RTMP & RTMPS Stream to supported platforms, your own servers, relays or custom streaming setups. SRT is designed for reliable, low-latency streaming, while RTMP and RTMPS are widely supported by streaming platforms and servers. Simply enter your destination URL and stream key in pocketScreen. The app focuses on one destination per stream, keeping setup simple and fast. 720P OR 1080P SCREEN STREAMING Stream your screen using H.264 hardware encoding at 30 FPS. Choose between 720p and 1080p and adjust the video bitrate to match your connection. Portrait and landscape orientation are handled automatically. APP AUDIO, MICROPHONE OR BOTH Choose exactly what your viewers hear: app audio, your microphone, a mix of both, or no audio at all. Audio is streamed using AAC. LOCAL MP4 RECORDING Optionally save a local MP4 copy of your stream directly on your iPhone while broadcasting. Perfect for reviewing, archiving or reusing your content later — without running a separate recording app. START STREAMING THROUGH IOS pocketScreen uses the built-in iOS screen broadcasting feature. Set up your streaming destination in the app, then start the broadcast through the iOS system interface. Your screen and audio are only accessed after you explicitly start screen sharing. LIVE STREAM DIAGNOSTICS Keep track of important stream information in real time, including video FPS, send queue status and dropped frames. MADE FOR IRL STREAMS, MOBILE GAMES AND MORE Share maps, apps and other on-screen content with your viewers while you're on the go. Stream mobile games, demo apps, create live tutorials or broadcast presentations directly from your iPhone. YOUR DATA STAYS YOURS No account is required to use pocketScreen. Your streaming destination and settings are stored locally on your device. Your screen and microphone are only accessed after you start broadcasting through iOS. Diagnostic logs are uploaded only when you choose to send them. FEEDBACK & FEATURE REQUESTS Have feedback or an idea for a new feature? Join my Discord: https://discord.gg/WwRCPCTez9

Screenshots

ISS Tracker4 screens
pocketScreen4 screens

Verdict

The call

ISS Tracker and pocketScreen are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

ScorecardNo meaningful differences
ISS Tracker versus pocketScreen: the parameters behind the verdict, then further details
ParameterISS TrackerpocketScreen
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size32 MB8 MB
Age rating4+4+
DeveloperLucent Enterprises Ltd.Sven Schroder

In-app purchases

None

ISS Tracker

No in-app purchases

None

pocketScreen

No in-app purchases

Questions

Is ISS Tracker free?
ISS Tracker is free to download, with no in-app purchases.
Is pocketScreen free?
pocketScreen is free to download, with no in-app purchases.
Do ISS Tracker or pocketScreen have ads?
Neither ISS Tracker nor pocketScreen shows ads.
Which is updated more often, ISS Tracker or pocketScreen?
ISS Tracker ships an update weekly, and pocketScreen weekly. Most recently, ISS Tracker was updated on September 30, 2026 and pocketScreen on October 10, 2026.

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