Comparison

ISS Detector vs Capxule

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

Capxule

Features
Read full description

Capxule is the Context Marketplace: Handcrafted expert context on the topics you deal with. WHAT IS A HAND-CRAFTED CONTEXT? Ask a regular AI a question and it averages everything it knows into one generic answer. A capsule changes what the AI is working with: the real approaches to one topic, the trade-offs, and the evidence, found, read, and weighted by people who know their subject. Not just gathered, but ordered so an AI gives you its sharpest take instead of a generic average. You skip the hunt for good context and step straight in. HOW IT WORKS 1. Pick a capsule from the shelf. Health, business, cooking, history, science - expert context on the topic you are dealing with. 2. Take the journey. The AI walks you through the capsule step by step: it starts where you are, pushes back where it should, and gets you real answers grounded in curated research. 3. Keep the companion. The journey ends. The capsule stays. Ask it tomorrow, next week, whenever life brings the question back. WHY A CAPSULE BEATS A PLAIN ANSWER - Skip the hunt. The work of finding, reading, and weighting good context is already done for you. - Specific, not generic. Regular AI gives you an averaged, one-size answer. A capsule gives you what actually fits your situation. - Yours to reuse. Come back for the next question, the next decision, the next day it matters. BUILT TO REACH A DECISION Most real topics have more than one right answer. A capsule lays the genuine approaches side by side, weighs them against your situation, and helps you land on the one that fits. You leave with a decision you can act on, not a reading list. A MARKETPLACE, NOT A LIBRARY Every capsule on the shelf was packaged by someone who knows their topic: creators, practitioners, and domain experts who turned what they know into context you can use. If you have expertise of your own, turn it into a capsule and add it to the shelf. Curated by real people. A guided journey, not a chat. A companion that stays. SUBSCRIPTIONS Capxule is free to use. Two optional auto-renewing subscriptions are available in the app: - Capxule Pro (1 month, auto-renewing): unlimited usage and unlimited capsules. - Capxule Premium (1 month, auto-renewing): everything in Pro, plus every premium capsule. The price is shown in the app before you subscribe. Payment is charged to your Apple Account when you confirm the purchase. A subscription renews automatically each month unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in your App Store account settings at any time after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://capxule.com/privacy Support: https://capxule.com/contact

Screenshots

ISS Detector4 screens
Capxule4 screens

Verdict

The call

The clearest difference is ads: Capxule at none against ISS Detector's shown. Capxule also leads on update cadence (every 3 days vs monthly). On price, in-app purchases, 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 and Capxule sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ISS Detector ships an update monthly, Capxule every 3 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
ISS Detector versus Capxule: the parameters behind the verdict, then further details
ParameterISS DetectorCapxule
PriceFreeFree
Rating4.6 (708 ratings) — better—
Positive reviews55.4% of reviews—
Number of ratings708 — better—
Update frequencyMonthlyEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size33 MB13 MB
Age rating4+4+
DeveloperDerk VrijdagContextvy LLC

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
2 purchases

Capxule

Subscriptions2
  • Capxule Pro$2.991 Month
  • Capxule Premium$9.991 Month

Questions

Is ISS Detector free?
ISS Detector is free to download, with in-app purchases available.
Is Capxule free?
Capxule is free to download, with in-app purchases available.
Do ISS Detector or Capxule have ads?
ISS Detector shows ads; Capxule does not.
Which is updated more often, ISS Detector or Capxule?
ISS Detector ships an update monthly, and Capxule every 3 days. Most recently, ISS Detector was updated on October 26, 2026 and Capxule on October 24, 2026.

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