Brain Explorer vs DOKO! Doppelkopf
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Brain Explorer
Engage in fun, scientifically-backed games to test your cognitive abilities. Compare your brainpower with others and contribute to neuroscience research. Explore a galaxy-themed adventure while unlocking new challenges and earning achievements.
- Play brain-testing games
- Compare brain scores with others
- Win medals and unlock games
- Help scientists understand the brain
- Space-themed exploration
- Anonymous data collection
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How does your brain work? How is your brain power compared to your friends? Play the fun and entertaining games in the Brain Explorer app and learn all about your brain. The Brain Explorer app was developed by world-leading neuroscientists at University College London (UCL) and brings you the newest games to measure your brain power using the most state-of-the-art brain tests. Using this app, you can - Play many fun games that test your brain power - Compare your brain scores with others - Win medals and unlock hidden games - Help scientists understand how the brain works. You will explore outer space, find new planets, visit intergalactic marketplaces and hunt for treasures across the entire galaxy. This space-themed app entails multiple entertaining games, each of them probing another brain function. You get feedback about your performance, can learn about your brain strengths, and compare yourself to others. By playing these games, you will collect moons and stars that allow you to further explore the galaxy. If you play well, you will win medals and get badges for your achievements. Brain explorer is a citizen science project. By playing these games and answering questions, you will help scientist understand how the brain develops and how brain functions are linked to mental health. Become a researcher yourself and help uncover the hidden mysteries of the brain. Data collection is entirely anonymous.
DOKO! Doppelkopf
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Want to learn Doppelkopf so you can join in at the next family get-together, at the pub or at the club? Then take a seat with Thomas, Sofia and Armin. They explain the game as you play, card by card, and after every round they show you where there was more to gain. No ads, no account, and it plays offline. Doppelkopf is one of Germany's best-loved trick-taking card games. A round takes just a few minutes, so it fits into any commute or lunch break, and every round makes you a little more confident. These are the real rules: back at a real table you'll know when to call Re, where the foxes are hiding and why everyone wants the Dulle. HOW YOU LEARN • Hands-on tutorial: eight short steps, including "Who's your partner?" and "Watch out: a trap!". You tap the right card yourself. • A tip at the tap of a button: the light bulb suggests a card and tells you why in one sentence. • Trick helper: a crown shows which card is winning the trick right now. A green plus shows when to give your partner points. • After every trick, one sentence on why it went that way. After every round, a review: which trick decided it, and where was there more to gain? • Practice and a cheat sheet: short exercises at the table, the trump order and card points always at hand. • On first launch the app asks how well you already play and sets up the help to match. Each aid can be switched off once you no longer need it. • Opponents grow with you: on "Adapts", the bots play about as well as you do. EARN YOUR TABLE • The tour takes you through 15 evenings, from the kitchen table via pub night, clubhouse and city championship to the state tournament. The rules are introduced step by step. • Every venue has its own table, music and props, and at two of them someone new joins you. • 30 stars are waiting in the challenges. They unlock hairstyles, tables and card decks. • Seven card decks from "Funfair" to "Blacklight", and five tables. • Character editor: hairstyle, hair and skin tone, glasses, beard or freckles, your own name. • Give Thomas, Sofia and Armin a different playing style: cautious, aggressive or chaotic. • Career with rank, statistics and more than 50 medals. FOR IN BETWEEN • Daily deal: four fixed rounds, everyone leads once, one attempt. Can you make par, meaning what a solid player would score with these cards? A tear-off calendar keeps the record. • Optional with Game Center: today's leaderboard and challenges for your friends. • Survival: one life, a new par every round. How far can you go? • Free play: one to three games, rules and opponents just the way you like them. • Quick with 40 cards or classic with nines. ONCE YOU KNOW IT • Re and Kontra, calls all the way to "Black", the wedding. • All seven solos: queens, jacks, no-trump and four suit solos, with their own tutorial. • Bonus points for catching the fox, Doppelkopf and Charlie, plus piglets. Calls, Charlie and piglets can each be switched off. • Four opponent levels: Easy, Medium, Hard or "Adapts". • The bots play like club players: they count cards, watch their partner and make calls when their hand can carry it. • Unplayable hands are redealt automatically. FRIENDS AT THE TABLE • Up to four players on the same Wi-Fi, each on their own iPhone or iPad. • One of you opens the table, the others join. No account, no sign-up, no server. • Bots take any empty seats, so two or three of you can play too. • Everyone brings their own face and their own card deck. NO STRINGS ATTACHED • Free, no ads, no account. • No tracking: the app collects no data, your progress stays on your device. • Plays completely offline against the bots. • Light and dark mode, music and sound effects adjustable separately. • In English, German and Ukrainian. Гра повністю доступна українською мовою. Questions, ideas or found a bug? The support page tells you how to reach us.
Screenshots
Verdict
The clearest difference is update cadence: DOKO! Doppelkopf at every 3 days against Brain Explorer's monthly. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Brain Explorer ships an update monthly, DOKO! Doppelkopf every 3 days. The most recent releases landed on October 16, 2026 and October 31, 2026 respectively.
| Parameter | Brain Explorer | DOKO! Doppelkopf |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 32 MB |
| Age rating | 4+ | 12+ |
| Developer | thkp, LLC | Thomas Kruse |
In-app purchases
Brain Explorer
No in-app purchases
DOKO! Doppelkopf
No in-app purchases
Questions
Is Brain Explorer free?
Is DOKO! Doppelkopf free?
Do Brain Explorer or DOKO! Doppelkopf have ads?
Which is updated more often, Brain Explorer or DOKO! Doppelkopf?
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