Know Brainer vs Moonstera
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Know Brainer
Explore fascinating science facts and distinguish truth from fiction. Engage in challenges, discover surprising facts, and compete with others to become the smartest player. This addictive and free game offers a fresh perspective on the world.
- Mind-blowing science facts
- Distinguish fact from fiction
- Surprising discoveries
- Challenge fellow players
- Free to play
- Addictive gameplay
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Launch yourself into the mysterious world of mind-blowing science and atom-splitting facts! Unleash your smarts, wit and intuition to separate fact from fiction. Surprising discoveries and mega prizes await! Challenge fellow players and become the brightest star in the internet galaxy! This app is truly addictive, interesting and completely free. See the world differently and recharge your batteries!
Moonstera
A memory matching game where players find identical cards by flipping them over. If the images don't match, the cards are turned back, requiring players to remember their positions. The game offers increasing difficulty levels to help players improve their skills.
- Card matching gameplay
- Memory skill improvement
- Progressive difficulty levels
- Simple interface
- Suitable for all ages
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In this game, you need to look for two identical cards with images, opening them in pairs. At the same time, if the pictures on the two cards do not match, then the cards are turned back, and you need to remember which cards they were. You will be able to improve your skills gradually, thanks to the difficulty levels.
Screenshots
Verdict
The clearest difference is ads: Know Brainer at none against Moonstera's shown. Know Brainer also leads on monetization model (free vs ad-supported) and iOS requirement (11.0 vs 15.6). Moonstera's advantage is review sentiment (100% vs 80%). On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Know Brainer | Moonstera |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 92 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Ritori | Vladislav Meleshko |
Customer experience
Know Brainer
Moonstera
In-app purchases
Know Brainer
No in-app purchases
Moonstera
No in-app purchases
Questions
Is Know Brainer free?
Is Moonstera free?
Do Know Brainer or Moonstera have ads?
Which is updated more often, Know Brainer or Moonstera?
Other comparisons
