7 Planets vs Kropki Puzzle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
7 Planets
This relaxing logic puzzle game features a wooden board and colorful marbles. Solve brain-teasing challenges by rolling and matching marbles to restore order. Enjoy offline play at your own pace with simple, satisfying gameplay.
- Wooden board and marble gameplay
- Mind-bending logic challenges
- Offline puzzle solving
- Three distinct game modes
- Leaderboards and achievements
- Satisfying tactile experience
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7 PLANETS is a relaxing yet challenging logic puzzle game with wooden balls, brain-teasing mechanics, and the timeless feel of a classic board game. Roll and match colourful marbles on a beautifully crafted wooden board, solve puzzles at your own pace, and train your brain with simple but deeply rewarding gameplay. A Puzzle with History 7 PLANETS has been on the App Store for over 15 years and is inspired by a beloved tabletop puzzle first introduced in 1985. It preserves the charm of the original game while bringing its clever logic challenges to modern mobile devices. You start with a wooden board containing 28 balls in 7 different colours. Your objective is simple: restore order by placing every ball into its correct row. The challenge is that when you move one ball, the entire row moves with it. Since the balls are shuffled differently every game, every puzzle presents a unique challenge. 5 Game Modes • One Planet – Match balls using only one randomly selected target colour. Fast, accessible, and perfect for short play sessions. • 7 Planets – The classic experience. Match all seven colours to their fixed positions on the board and improve your strategy over time. • Daily Planets – A new challenge every day. All players around the world receive exactly the same board and compete to achieve the best time and move count before a new puzzle arrives the next day. • Online Duel – Challenge friends or compete against players online in live head-to-head matches to prove who can solve the puzzle faster. • Black Planets – The ultimate challenge. Target colours are shuffled and a mysterious black planet blocks your path, creating entirely new strategic possibilities. This special mode appears only occasionally, making every appearance a unique event. Compete & Improve • Unlock 15 achievements • Climb 5 leaderboards • Improve your time and move count • Compare your skills with players around the world • Master increasingly difficult challenges Whether you are looking for a relaxing puzzle, a daily brain workout, or competitive challenges, 7 PLANETS offers a unique wooden puzzle experience that is easy to learn and rewarding to master. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://www.drugikat.com/new/?page_id=1772
Kropki Puzzle
A logic puzzle game where you fill a grid with numbers. Numbers in rows and columns must be unique. Special dots indicate relationships between adjacent numbers, requiring them to differ by one or half.
- Fill grid with unique numbers
- White dot: adjacent numbers differ by one
- Black dot: adjacent numbers differ by half
- All dots are shown
- Multiple difficulty levels
- Supports multiple numbers per cell during play
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Kropki is a logical puzzle game. In this game you have to fill the playing field with numbers, initially all numbers are missing. Fill the field so that the following two conditions are met: * All numbers in the rows must be unique. Every number in the row occurs only once. * The same rule for columns, all numbers must be unique. Also there are additional conditions, on the field there are white and black dots: * If there is a white dot between two cells, then the values in these cells differ by one. * If there is a black dot - then the values differ by half. For example (1 and 2, 2 and 1, 2 and 4, etc.) * All possible dots on the field are already exposed, this means that if there is no dot between the two cells, then their values can not differ by one and can not differ by half. Note: For numbers 1 and 2, there may be both white and black dot in neighbour cells. Because both rules are observed. In the process of the game, for your convenience, you can put more than one number in the cell, and in after remove the numbers that do not fit. The level will be considered passed if all cells have only one digit and all the above conditions are met. In the program you can choose one of six difficulty levels. If you've never played in Kropki. Try to start from the first level on the 4x4 difficulty.
Screenshots
Verdict
The clearest difference is review sentiment: Kropki Puzzle at 76% against 7 Planets's 39%. Kropki Puzzle also leads on in-app purchases (none vs 2) and rating (4.8 vs 4.5). 7 Planets's advantage is ads (none vs shown). On price, ratings volume, update cadence 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. 7 Planets sells 2 in-app purchases, starting at $1.99 per month. Kropki Puzzle asks for nothing beyond the download.
Kropki Puzzle holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 80 and 51 respectively. Written reviews point the same way: 39% of 7 Planets's written reviews are positive against 76% of Kropki Puzzle's.
7 Planets ships an update every 4 months, Kropki Puzzle every 2 months. Both last shipped on October 24, 2026.
| Parameter | 7 Planets | Kropki Puzzle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (80 ratings) | 4.8 (51 ratings) — better |
| Positive reviews | 38.7% of reviews | 76.0% of reviews — better |
| Number of ratings | 80 — better | 51 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 107 MB | 9 MB |
| Age rating | 4+ | 12+ |
| Developer | Tomislav Puzak | Aliaksandr Uvarau |
Customer experience
7 Planets
Kropki Puzzle
In-app purchases
7 Planets
- 7 Planets Premium (Monthly)$1.991 Month
- 7 Planets Premium (Yearly)$8.991 Year
Kropki Puzzle
No in-app purchases









