Comparison

Alien Planets vs Facts

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

Head to head
About

Alien Planets

Features
Read full description

Alien Planets is a field guide to worlds that do not orbit our Sun. Somewhere out there, a year can last a few days, a sky can hold two suns, and a planet can be so close to its star that its surface is a permanent storm. This app turns those distant discoveries into something you can actually browse. Open it and move through confirmed exoplanets and the stars they circle. Each world comes with the details that make it real: how large it is, how massive, how long it takes to orbit, how far away it sits, and how it was found. Set a planet next to Earth or Jupiter and the scale snaps into place. A “super-Earth” stops being a label and starts looking like a place. The catalog keeps growing. New observations revise old numbers, and planets once listed as candidates become confirmed. Alien Planets stays with that living record, written in plain language, so you can follow the nearest known worlds, the strangest orbits, and the thin band astronomers call the habitable zone without getting lost in a research paper. Save the planets you want to come back to. Then keep going. The galaxy is full of new worlds, and most of them still have a story waiting.

About

Facts

Discover surprising truths and curious knowledge with daily facts. Save your favorites, organize them into categories, and share fascinating information with friends. Enjoy offline access and custom notifications to stay informed and inspired.

Highlights
  • Daily surprising facts
  • Gesture-based navigation
  • Save and categorize facts
  • Share facts instantly
  • Offline access
  • Customizable notifications
Features
Read full description

Dive into a world of surprising truths and curious knowledge with Facts: WaitWhat! Every swipe opens the door to something you didn’t know you needed to know. This isn’t just another fact app, it’s a personalized journey through the most fascinating corners of reality. Why Users Love WaitWhat: • Smart and Simple Navigation Choose how you navigate: up, down, left, right - it's up to you Seamless transitions for a smooth discovery flow Gesture-based controls designed for distraction-free browsing • Build Your Own Fact Vault Save the facts that wow you Create your own categories to keep everything organized Return to your favorite facts with a single tap • Share the Shockers Instantly share facts across your favorite platforms Surprise your friends with bizarre and mind-blowing knowledge • Offline Wonder No internet? No problem. Keep learning wherever you are All your saved facts are available even in airplane mode • Custom Notifications Set how often you want new facts delivered Stay informed, curious, and inspired—on your schedule • Helpful Onboarding Clear instructions to help you master the app quickly Discover hidden features with our interactive walkthrough + Go Premium for the Ultimate Curiosity Fix: - Unlock a hand-picked collection of rare facts - Personalize the look of the app with unique themes - Access your favorite facts directly on the home screen - Customize the app icon to match your vibe - Fine-tune notifications for maximum delight Step into the world of Facts: WaitWhat!, where the truth really is stranger than fiction. Terms of Use: https://docs.google.com/document/d/1HWhsnu5bXa_KfOZB4RZCsieXmPKmOXvSz1fd39G_lKw Privacy Policy: https://docs.google.com/document/d/19R9RWeMt2v3AdEp3d1e4cMQRrZs8oWUARb5_7Q7-Zck

Screenshots

Alien Planets4 screens
Facts4 screens

Verdict

The call

The clearest difference is price: Facts at Free against Alien Planets's $9.99. Facts also leads on update cadence (every 3 weeks vs every 24 months) and iOS requirement (12.0 vs 27.0). Alien Planets's advantage is in-app purchases (none vs 2). On ads 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

Facts is free to download; Alien Planets costs $9.99 up front. Facts sells 2 in-app purchases, starting at $1.99 per month. Alien Planets asks for nothing beyond the download.

UpkeepUpdate frequency

Alien Planets ships an update every 24 months, Facts every 3 weeks. The most recent releases landed on November 11, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Alien Planets versus Facts: the parameters behind the verdict, then further details
ParameterAlien PlanetsFacts
Price$9.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 24 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS27.012.0 — better
Further details — not scored
Size51 MB98 MB
Age rating4+4+
DeveloperJose LealAlihan SELIMOGLU

In-app purchases

None

Alien Planets

No in-app purchases

2 purchases

Facts

Subscriptions2
  • Premium - Monthly$1.991 Month
  • Premium - Annually3 Days trial$2.991 Year

Questions

Is Alien Planets free?
Alien Planets costs $9.99, with no in-app purchases.
Is Facts free?
Facts is free to download, with in-app purchases available.
Do Alien Planets or Facts have ads?
Neither Alien Planets nor Facts shows ads.
Which is updated more often, Alien Planets or Facts?
Alien Planets ships an update every 24 months, and Facts every 3 weeks. Most recently, Alien Planets was updated on November 11, 2026 and Facts on October 30, 2026.

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