Comparison

Constellations Puzzle vs Primee!

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

Head to head
About

Constellations Puzzle

Learn constellations through a fun jigsaw puzzle experience. Choose from three modes featuring different sets of constellations. Compete for the best time, collect picture panels, and use assistance features to help you learn.

Highlights
  • Learn constellations via jigsaw puzzles
  • Three distinct constellation modes
  • Timed challenges for best scores
  • Collectible picture panels
  • Assisted navigation feature
  • Global player leaderboards
Features
Read full description

An educational puzzle game produced by Digital Gene. This is an educational game that allows you to learn the constellation as if you play a jigsaw puzzle. This game is designed to be simple yet fun to play. The app is best suited for people who want to learn the constellation or students who want to get ready for the exams. Or why don't you try this game to stay sharp during your spare time? There are three modes available: one featuring 12 constellations on the ecliptic like Aries and Libra, which are also used in astrology; one featuring the 48 constellations listed by Ptolemy, such as Orion and Cassiopeia, which appear in ancient myth; and one featuring the 88 constellations recognized by the IAU. You can improve your knowledge as you play the game aiming for the best time or compete against players from all over the world. You can also collect picture panels when you satisfy certain conditions. So do your best to get all of them. When you're stuck on finding the location, use the assisted function. It will help you to navigate the correct location without hassling yourself. Please enjoy it. (Note: Due to the nature of puzzle games, certain stars are emphasized and certain stars omitted. ) (Note: As there are no official diagrams for the lines connecting the constellations, the forms of the constellations here may differ from those in other material. )

About

Primee!

This is a fast-paced puzzle game where players tap prime numbers and swipe to factor composite numbers. It offers a mental workout with quick games and global leaderboards, designed for adults and teens seeking a satisfying challenge.

Highlights
  • Tap primes and factor composites
  • Mental workout for focus and logic
  • Quick 2-minute game sessions
  • Global leaderboards
  • Satisfying and addictive gameplay
Read full description

Sharpen your mind with Primee!, the fast-paced puzzle game for adults and teens who love a real mental challenge. Experience the thrill of a classic arcade game, but for your brain. In Primee!, you don't slice fruit—you slice numbers! Tap the primes, and swipe to slash composite numbers into their prime factors in a uniquely satisfying and addicting challenge. --- PAY ONCE, PLAY FOREVER This is a complete, premium game. No ads. No interruptions. No in-app purchases. Ever. Just pure, focused gameplay. --- FEATURES • A TRUE MENTAL WORKOUT: More than just a math game, it’s a test of your focus, logic, and reflexes, disguised as a simple, addictive game. • QUICK 2-MINUTE GAMES: Ideal for a mental refresh during your commute, break, or any spare moment. • GLOBAL LEADERBOARDS: Climb the ranks on Game Center. Can you become the world's Prime Master? • A PROVEN HIT IN JAPAN: Loved by both puzzle fans and educators in one of the world's most competitive game markets. Ready to challenge your mind? Download Primee! today.

Screenshots

Constellations Puzzle4 screens
Primee!4 screens

Verdict

The call

The clearest difference is price: Constellations Puzzle at Free against Primee!'s $1.99. Constellations Puzzle also leads on ratings volume (21 vs 7). Primee!'s advantage is ads (none vs shown) and rating (5.0 vs 4.8). On review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Constellations Puzzle is free to download; Primee! costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Primee! holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 21 and 7 respectively. Written reviews point the same way: 84% of Constellations Puzzle's written reviews are positive against 87% of Primee!'s.

UpkeepUpdate frequency

Constellations Puzzle ships an update every 5 months, Primee! every 2 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
Constellations Puzzle versus Primee!: the parameters behind the verdict, then further details
ParameterConstellations PuzzlePrimee!
PriceFree — better$1.99
Rating4.8 (21 ratings)5.0 (7 ratings) — better
Positive reviews84.4% of reviews86.7% of reviews — better
Number of ratings21 — better7
Update frequencyEvery 5 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size14 MB115 MB
Age rating4+4+
DeveloperPlus Inc. (Japan)SOFT DEVICE INC.

Customer experience

Constellations Puzzle

All ratings21 ratings
Positive95.2%
Neutral4.8%
Negative0.0%
Written reviews77 reviews
Positive84.4%
Neutral5.2%
Negative10.4%

Primee!

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive86.7%
Neutral13.3%
Negative0.0%

In-app purchases

None

Constellations Puzzle

No in-app purchases

None

Primee!

No in-app purchases

Questions

Is Constellations Puzzle free?
Constellations Puzzle is free to download, with no in-app purchases.
Is Primee! free?
Primee! costs $1.99, with no in-app purchases.
Which has better reviews, Constellations Puzzle or Primee!?
Primee! is rated higher. Constellations Puzzle averages 4.8 out of 5 from 21 ratings, while Primee! averages 5.0 from 7 ratings.
Do Constellations Puzzle or Primee! have ads?
Constellations Puzzle shows ads; Primee! does not.
Which is updated more often, Constellations Puzzle or Primee!?
Constellations Puzzle ships an update every 5 months, and Primee! every 2 months. Most recently, Constellations Puzzle was updated on November 1, 2026 and Primee! on November 4, 2026.

Other comparisons