Comparison

ISS Detector vs Grablo

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

Head to head
About

ISS Detector

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
Read full description

Have you seen the International Space Station? It is visible with the naked eye! This is the easiest way to spot the station. ISS Detector will tell you when and where to look for the ISS. You get an alarm a few minutes before a pass. You will never miss it. ISS Detector will also check if the weather conditions are right. A clear sky is perfect for spotting. Premium will enhance the functionality of ISS Detector. With the subscription you can add many famous satellites and amateur radio satellites. See the Starlink satellite trains, Hubble space telescope, rocket bodies, Vanguard 1 and many bright satellites. Available categories in Premium: Radio Amateur Satellites: Track dozens of ham and weather satellites. Starlink: Track Starlink satellite trains. Famous Objects: Hubble Space Telescope, rocket bodies, bright satellites and more. Comets: Find comets in the night sky. You might need binoculars or a telescope to see them Planets: Find all the planets Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Grablo

Features
Read full description

From Ideas to Reality — No Coding Required. Grablo is a no-code AI IoT platform that empowers anyone to create professional-grade smart devices quickly and easily, without writing a single line of code. Think It, Build It Build automation logic with intuitive algorithm blocks. Just drag and drop conditions and actions — no programming syntax to learn. Develop logical thinking while creating real projects. AI Without the Complexity Add powerful AI to your projects with just a few blocks: • AI Vision — Object detection, face recognition, pose estimation, hand tracking • Speech Recognition — Voice command control • Text-to-Speech — Make your device talk No machine learning expertise needed. Control Your Projects from Anywhere Monitor and control your devices in real time with a customizable web dashboard. Gauges, charts, switches, sliders, camera streams — design the interface you need. Ready-to-Use Components Configure hardware devices instantly with the built-in device library. GPIO, I2C, SPI, UART, 1-Wire, PWM — all supported out of the box. Powerful Features Made Simple Need more flexibility? Extend your projects with Blockly visual coding for advanced logic — the perfect bridge between blocks and code. What Can You Build? • Smart home automation • Robotics & motor control • AI-powered camera systems • Environmental monitoring • LED & lighting projects • Agricultural automation • STEM education projects Perfect for Learning and Creating Whether you're a student exploring STEM, an educator teaching AI, a maker building IoT projects, or a professional prototyping — Grablo makes it accessible to everyone.

Screenshots

ISS Detector4 screens
Grablo4 screens

Verdict

The call

The clearest difference is in-app purchases: Grablo at none against ISS Detector's 13. Grablo also leads on ads (none vs shown) and update cadence (every 2 days vs monthly). On price, device support and iOS requirement 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. ISS Detector sells 11 in-app purchases, starting at $0.99 per month. Grablo asks for nothing beyond the download.

UpkeepUpdate frequency

ISS Detector ships an update monthly, Grablo every 2 days. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
ISS Detector versus Grablo: the parameters behind the verdict, then further details
ParameterISS DetectorGrablo
PriceFreeFree
Rating4.6 (633 ratings) — better—
Positive reviews55.1% of reviews—
Number of ratings633 — better—
Update frequencyMonthlyEvery 2 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size33 MB12 MB
Age rating4+4+
DeveloperDerk VrijdagGrablo Inc.

In-app purchases

11 purchases

ISS Detector

Subscriptions7
  • Premium Access2 variants$0.991 Month
  • Donation$1.991 Month
  • Premium Access$1.991 Month
Show 4 more
  • Premium Access$2.991 Year
  • Premium Access7 Days trial$5.991 Year
  • Donation2 variants$5.991 Year
  • Premium Access7 Days trial$11.991 Year
One-time4
  • Starlink and Famous objects$3.99
  • Amateur Radio Satellites$3.99
  • Comets and Planets$3.99
Show 1 more
  • Combo package$5.99
None

Grablo

No in-app purchases

Questions

Is ISS Detector free?
ISS Detector is free to download, with in-app purchases available.
Is Grablo free?
Grablo is free to download, with no in-app purchases.
Do ISS Detector or Grablo have ads?
ISS Detector shows ads; Grablo does not.
Which is updated more often, ISS Detector or Grablo?
ISS Detector ships an update monthly, and Grablo every 2 days. Most recently, ISS Detector was updated on October 18, 2026 and Grablo on October 16, 2026.

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