Alien Planets vs Pocket Factz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Alien Planets
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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.
Pocket Factz
Discover a vast collection of interesting facts delivered hourly via a widget or browsed within the app. Each fact is enhanced with a unique background for a visually engaging learning experience.
- Hourly fact widget
- Browse hundreds of facts
- Facts with unique backgrounds
- Completely free
- Curated knowledge
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Pocket Facts: Your Gateway to Wonders Unknown — For Free! Discover the treasure trove of Pocket Facts, a completely free app designed to quench the thirst of the ever-curious mind. There's no catch, no hidden costs, and absolutely no paid versions—just pure, unadulterated knowledge at your fingertips. Every hour, our innovative widget serves up a fresh slice of wonder, ensuring that your voyage into the unknown is constant and captivating. Whether you're taking a breather, waiting in line, or simply seeking a dose of intrigue, there's always a fact waiting to enthrall you. And if an hour feels too long? Delve into the app and swim in a galaxy of information. Skim through hundreds of facts at your leisure, each one curated especially for the insatiably curious. Whether you're in the mood for quick insights or a deep exploration, Pocket Facts offers an ever-replenishing reservoir of knowledge. But it's not just about the words. Every fact is accompanied by a unique, mesmerizing background, turning each snippet of information into a visual masterpiece. It's a harmonious blend of intellect and aesthetics, tailored for both the heart and the mind. With Pocket Facts, knowledge isn't merely power—it's an adventure, a passion, and a visual journey. And the best part? This entire universe of facts is yours to explore without spending a dime. Dive in, satisfy your curiosity, and revel in the wonders of the world, all from the comfort of your pocket.
Screenshots
Verdict
The clearest difference is price: Pocket Factz at Free against Alien Planets's $9.99. Pocket Factz also leads on update cadence (daily vs every 24 months) and iOS requirement (16.4 vs 27.0). On 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
Pocket Factz is free to download; Alien Planets costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Alien Planets ships an update every 24 months, Pocket Factz daily. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.
| Parameter | Alien Planets | Pocket Factz |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | — | 4.6 (5 ratings) — better |
| Number of ratings | — | 5 — better |
| Update frequency | Every 24 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 27.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 51 MB | 67 MB |
| Age rating | 4+ | 12+ |
| Developer | Jose Leal | OKRA Labs LLC |
In-app purchases
Alien Planets
No in-app purchases
Pocket Factz
No in-app purchases
Questions
Is Alien Planets free?
Is Pocket Factz free?
Do Alien Planets or Pocket Factz have ads?
Which is updated more often, Alien Planets or Pocket Factz?
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