Comparison

7 Planets vs Memory Stamps

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

Head to head
About

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.

Highlights
  • Wooden board and marble gameplay
  • Mind-bending logic challenges
  • Offline puzzle solving
  • Three distinct game modes
  • Leaderboards and achievements
  • Satisfying tactile experience
Features
Read full description

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

About

Memory Stamps

An elegant puzzle game designed to enhance visual memory and promote relaxation. Players study detailed illustrations and then recreate them by filling in missing elements, with options for a stress-free Zen mode or a timed Challenge mode.

Highlights
  • Visual memory training
  • Zen and Challenge modes
  • Themed illustrations
  • Light and Dark mode
  • Soothing music and colors
  • Offline play
Features
Read full description

Memory Stamps is an elegant puzzle game that combines a few a proven methods to enhance visual memory and helps you relax. •How to play? You will be first presented detail-rich, themed illustrations, then after you consider you've taken all in, several illustration elements will disappear and, using your visual memory you will reassemble the illustration. •Who is this for? The game applies for both gamers and non-gamers, and acts as an excellent memory training activity; stress-free. •Challenging? Although levels can be completed at your own pace, there is a challenge mode available for the ones who want to test their memory to the limits, with a limited time to study the illustrations and with a limited number of errors to make. •Features: - 2 Game Modes: Zen mode and Challenge mode. - Switch between Light mode and Dark mode. - Soothing color palettes and relaxing lo-fi beats. - Game Center. - No ads, no in-app purchases; buy it once and enjoy it forever. - Haptic Feedback. (can turn on/off). - Optimized for all devices; - Simple controls, suitable for any age. - Play Offline, no internet connection required to play. - No violence, stress-free; play at your own pace. - Not collecting any personal data. •Developer notes: Thank you for playing “Memory Stamps”. I put a lot of love and effort into making this game. Don’t forget to review the game and share it with your friends. Use #memorystamps on social media!

Screenshots

7 Planets4 screens
Memory Stamps4 screens

Verdict

The call

The clearest difference is price: 7 Planets at Free against Memory Stamps's $1.99. Memory Stamps's advantage is rating (4.3 vs 3.7) and in-app purchases (none vs 2). On review sentiment, 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

7 Planets is free to download; Memory Stamps costs $1.99 up front. 7 Planets sells 2 in-app purchases, starting at $1.99 per month. Memory Stamps asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Memory Stamps holds the better App Store score, 4.3 against 3.7. That said, the two scores are not equally well evidenced: Memory Stamps has 82 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 39% of 7 Planets's written reviews are positive against 40% of Memory Stamps's.

UpkeepUpdate frequency

7 Planets ships an update every 4 months, Memory Stamps fortnightly. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

Scorecard7 real differences · 3 level
7 Planets versus Memory Stamps: the parameters behind the verdict, then further details
Parameter7 PlanetsMemory Stamps
PriceFree — better$1.99
Rating3.7 (15 ratings)4.3 (82 ratings) — better
Positive reviews38.7% of reviews40.0% of reviews — better
Number of ratings1582 — better
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size107 MB52 MB
Age rating4+4+
DeveloperTomislav PuzakTepes Ovidiu

Customer experience

7 Planets

All ratings15 ratings
Positive66.7%
Neutral13.3%
Negative20.0%
Written reviews31 reviews
Positive38.7%
Neutral22.6%
Negative38.7%

Memory Stamps

All ratings82 ratings
Positive80.5%
Neutral7.3%
Negative12.2%
Written reviews30 reviews
Positive40.0%
Neutral6.7%
Negative53.3%

In-app purchases

2 purchases

7 Planets

Subscriptions2
  • 7 Planets Premium (Monthly)$1.991 Month
  • 7 Planets Premium (Yearly)$8.991 Year
None

Memory Stamps

No in-app purchases

Questions

Is 7 Planets free?
7 Planets is free to download, with in-app purchases available.
Is Memory Stamps free?
Memory Stamps costs $1.99, with no in-app purchases.
Which has better reviews, 7 Planets or Memory Stamps?
Memory Stamps is rated higher. 7 Planets averages 3.7 out of 5 from 15 ratings, while Memory Stamps averages 4.3 from 82 ratings.
Do 7 Planets or Memory Stamps have ads?
Neither 7 Planets nor Memory Stamps shows ads.
Which is updated more often, 7 Planets or Memory Stamps?
7 Planets ships an update every 4 months, and Memory Stamps fortnightly. Most recently, 7 Planets was updated on October 7, 2026 and Memory Stamps on October 15, 2026.

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