Comparison

Just Blocks vs Singularity

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

Head to head
About

Just Blocks

This logic puzzle game combines Sudoku and classic brick block mechanics. It offers a relaxing way to train your mind with daily challenges, seasonal events, and multiple game modes. Enjoy addictive block merging and dropping gameplay anytime, anywhere.

Highlights
  • Sudoku and classic brick block puzzle combination
  • Daily challenges and seasonal events
  • Multiple game modes (Standard and Time)
  • Offline play available
  • Brain training and relaxation
  • Block merging and dropping gameplay
Features
Read full description

Try out Just Blocks and find out your brain age! Join the exciting world of block puzzle games by downloading and playing Just Blocks - the best classic wood puzzle game available! This logic, brain game is not only a great way to relax and de-stress, but it also helps you train your mind by solving classic brick block puzzles. Just Blocks is an easy, fit-for-all wood puzzle game combining 2 types of block games - sudoku games and classic brick games. It’s a completely free block puzzle game that comes with seasonal events, daily Just Blocks challenges and different modes to play - all designed to make you turn down stress and turn up the fun! Install Just Blocks puzzle for free and get addicted to merging, dropping and joining brick blocks in your own time or in a timely manner - your choice! Why install Just Blocks? Such combination of sudoku blocks, block classic games and puzzle blocks make up an ideal mind game you can play online or offline anytime, anywhere to train your brain and enjoy moments of complete relaxation. Brick puzzle block games such as Just Blocks also involve a certain degree of strategy and easy logic - that is why it’s a great free block puzzle game for all ages. The Daily Challenges will keep you on your toes … or rather, fingertips... since you’ll have to create puzzle blocks lines quite fast and make sure you finish the brick puzzle challenge in a predetermined time frame. Up for the daily puzzle challenges? Solve them all and win monthly trophies! Seasonal Events in Join Blocks will keep you highly entertained by adding even more elements to the game you already love - there will be free puzzles to complete, diamonds and rubies to earn, colourful bricks to collect, beautiful and fun block merging gameplay that you'll enjoy time and time again. Play and create puzzle bricks combos with no time limit with Standard mode or against the clock in Time mode for an extra adrenaline boost. Enjoy various game options such as different colors of the puzzle board and bricks, sounds, modes to play and more. How to play Just Blocks? Tap on the available brick blocks, then drag and drop the bricks around in the grid to place them where they fit best. Create full block lines on the grid vertically or horizontally, or whole brick squares in order to break bricks and score points. Check out the app Settings for more gameplay options. Just Blocks is a fun, addictive wood block puzzle that you’ll want to keep playing every day - either for a fun pastime or for practice, to keep your mind sharp. Brick block puzzle games of sudoku type, based on solving puzzles and matching bricks and even number blocks, help with brain training and development, so train frequently and keep track of your progress. Install Just Blocks today, drag and drop those wood puzzle blocks, play the daily challenges, score high and win trophies. Sounds like fun? Drop us your feedback and let us know how you feel about the Just Blocks app - we’re always happy to learn from our players!

About

Singularity

Engage in a minimalist cosmic puzzle where you trace a single line to consume celestial objects in ascending order of mass. Fill every cell and reach the black hole to collapse the region and witness its rebirth. Offers daily challenges, endless survival modes, and a creative sandbox.

Highlights
  • Trace a single unbroken line
  • Consume objects in order of mass
  • Fill every cell to win
  • Daily puzzles and endless survival modes
  • Sandbox mode for custom gameplay
  • Unlockable cosmic themes and skins
Features
Read full description

Drag one continuous worldline through a field of cosmic objects — particle, asteroid, moon, planet, star, neutron star — consuming them in ascending order of mass while filling every cell of spacetime. Reach the black hole last and the whole region collapses to a point… then blooms into something larger. Singularity: Collapse is a minimalist one-line puzzle with a cosmic soul. Easy to learn, deep to master. HOW TO PLAY • Trace a single unbroken line with your finger. • Swallow each object in order of its mass. • Fill every cell, then collapse into the black hole to win. FOUR WAYS TO PLAY • TODAY'S WORLDLINE — a daily puzzle, the same board for everyone worldwide. Build a streak, earn badges, and share how you did. • ENTROPY — endless high-score survival. The longer you last, the more the universe destabilizes; solving vents the entropy, but fill the bar and it's heat death. Easy, Medium, Hard. • DECAY — survival's precise mirror, with no clock. The black hole evaporates through Hawking radiation — every reversal shrinks it, every flawless solve rebuilds it. Hold it together as long as you can. • SYNTROPY — your sandbox: pick which mechanics appear and play at your own pace, timed or relaxed. AN UNFOLDING UNIVERSE As you climb, new rules reveal themselves — wormhole pairs, mass gates, gravity wells, an entangled pair caught in superposition, and stacked multiverse boards woven together by bridges. Each one is taught the moment you meet it. MADE TO PLAY ANYWHERE • Play offline — every puzzle is generated on your device. No account, no sign-up; your progress stays on your phone. • A soundtrack of synthesized public-domain classics: Bach, Satie, Chopin, Tchaikovsky… and a surprise or two. • Achievements, streaks, and a Field Guide that fills in as you explore. • A clean, minimalist cosmic look, with an unlockable Penrose spacetime skin. FREE TO PLAY Free with ads. One optional Premium unlock — a single purchase, no subscriptions — removes ads and adds unlimited hints, cosmetic trail and board-theme packs, and the full Syntropy custom picker. One line. Every cell. Collapse the cosmos.

Screenshots

Just Blocks4 screens
Singularity4 screens

Verdict

The call

The clearest difference is review sentiment: Singularity at 100% against Just Blocks's 24%. Singularity also leads on rating (5.0 vs 4.2) and update cadence (every 5 days vs monthly). Just Blocks's advantage is ratings volume (3.1K vs 1) and iOS requirement (12.5 vs 15.0). On price, ads, in-app purchases and monetization model 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

Both are free to download. Just Blocks sells 1 one-off in-app purchase and Singularity sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Singularity holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Just Blocks has 3.1K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 24% of Just Blocks's written reviews are positive against 100% of Singularity's.

UpkeepUpdate frequency

Just Blocks ships an update monthly, Singularity every 5 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Just Blocks versus Singularity: the parameters behind the verdict, then further details
ParameterJust BlocksSingularity
PriceFreeFree
Rating4.2 (3.1K ratings)5.0 (1 ratings) — better
Positive reviews24.1% of reviews100.0% of reviews — better
Number of ratings3.1K — better1
Update frequencyMonthlyEvery 5 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.5 — better15.0
Further details — not scored
Size324 MB27 MB
Age rating4+4+
DeveloperNewPubCo, IncADAM ETTINGER

Customer experience

Just Blocks

All ratings3,067 ratings
Positive78.9%
Neutral5.6%
Negative15.5%
Written reviews145 reviews
Positive24.1%
Neutral10.3%
Negative65.5%

Singularity

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Just Blocks

Reported bugs

4 issues
  • Game freezes and becomes unresponsive
  • Puzzle pieces not displaying correctly
  • Inconsistent performance across devices
  • Saved progress being lost after updates

Requested features

4 requests
  • Ability to rotate blocks freely
  • More difficulty levels and customization options
  • Improved audio/music integration
  • Clearer progress tracking and scoring system

Singularity

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Just Blocks

One-time1
  • No Ads$4.99
1 purchases

Singularity

One-time1
  • Premium Unlock$2.99

Questions

Is Just Blocks free?
Just Blocks is free to download, with in-app purchases available.
Is Singularity free?
Singularity is free to download, with in-app purchases available.
Which has better reviews, Just Blocks or Singularity?
Singularity is rated higher. Just Blocks averages 4.2 out of 5 from 3.1K ratings, while Singularity averages 5.0 from 1 ratings.
Do Just Blocks or Singularity have ads?
Both Just Blocks and Singularity show ads.
Which is updated more often, Just Blocks or Singularity?
Just Blocks ships an update monthly, and Singularity every 5 days. Most recently, Just Blocks was updated on November 3, 2026 and Singularity on October 24, 2026.

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