3D Cube Assembly vs Hidden Blocks
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
3D Cube Assembly
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App Description This is a puzzle game designed to boost spatial thinking and geometric imagination. Through fun and engaging levels, you’ll easily master the unfolding, assembling, and cutting rules of 3D shapes. Learning becomes fun, and thinking becomes more flexible! Whether you’re a student strengthening geometric intuition or a puzzle lover seeking new challenges, you’ll find joy here. ------------------------------------ Five Game Modes 1. Point Connect Find all edges connected to a given vertex in a cube’s unfolded net. Tip: A vertex always connects to three faces, and each face forms a right angle at the vertex. 2. Cube Recovery Choose the correct cube that can be folded from the given net. Tip: There are 11 cube nets—play once and you’ll remember them all! 3. Edge Match Identify common edges in cube nets. Connect the edges and quickly grasp unfolding rules. Tip: Edges meeting at right angles are common; in a row of four faces, the ends are common; in an L-shape, the far edges match; perpendicular edges outside right angles are also common. 4. Cube Puzzle Rotate three cube modules and fit them together into the target cube. Train spatial imagination, rotation skills, and geometric reasoning. 5. Poly Slice Rotate and move the cutting plane freely to observe how cross-sections change. Supports multiple solids: cube, ellipsoid, cone, frustum, triangular pyramid, square pyramid. ------------------------------------ Who It’s For • Students: A tool for practicing geometry and spatial imagination • Puzzle lovers: Challenging brain-teasing 3D puzzles • Teachers & Parents: Fun and educational support for classrooms and at-home learning
Hidden Blocks
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How many blocks? Look again. Some blocks are in plain sight. Others hide behind the stack. HIDDEN BLOCKS is a 3D block-counting logic puzzle where the real challenge is figuring out what you can't see. Study the stack, picture the hidden layers, and choose your answer. Simple to understand. Surprisingly tricky to solve. ▣ TWO MODES. TWO WAYS TO THINK. ● Count All Blocks Work out the total number of blocks, including the ones hidden from view. Every layer counts. ● Find Hidden Blocks Count only the blocks you can't see. Look beyond the visible faces and imagine what completes the stack. ▣ SMALL STACKS. BIG AHA MOMENTS. Start with simple shapes and progress to trickier, multi-layer structures. Use spatial reasoning to work out each answer. That satisfying moment when the whole stack makes sense? That's the fun. ▣ A FRESH PUZZLE EVERY DAY Daily Blocks gives you a new challenge each day. Take on the same daily puzzle as other players and see how your solve time compares. ▣ JUST FEEL LIKE A PUZZLE? Practice serves up a random puzzle each time. No stars, records, or rankings. Warm up before a stage or enjoy another little challenge. ▣ HOW FAR CAN YOU GO? Solve within the time limit, earn stars, and keep moving through the stages. Compare your stage progress with players around the world on the global leaderboard. ▣ A NOTEBOOK FULL OF PERSONALITY Warm paper, blue-ink answer marks, and three playful block companions give each challenge a little character. Clean puzzle layouts keep the focus on the blocks, while the Cubie trio brings the celebrations. Enjoy logic puzzles, visual brain teasers, or number challenges? Discover a different kind of block puzzle: count the stack and imagine what lies out of sight. ▣ WHERE THE IDEA CAME FROM Counting stacked unit cubes is a classic spatial reasoning exercise found in math curricula around the world — Common Core in the US, Singapore Math, the UK National Curriculum, and more. It trains the same 3D thinking that engineers, architects, and pilots use every day. HIDDEN BLOCKS takes that proven concept off the classroom page and turns it into a competitive daily brain game. There's more to every stack than meets the eye. #brain_training #spatial_reasoning #block_puzzle #logic_game #unit_cubes #3D_thinking #IQ #math_puzzle #puzzle_game #brain_game #hidden_blocks #casual_game #mind_game #focus #cube #counting #visual_puzzle #logic_puzzle #mental_training #block_counting
Screenshots
Verdict
The clearest difference is in-app purchases: 3D Cube Assembly at none against Hidden Blocks's 8. 3D Cube Assembly also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). Hidden Blocks's advantage is update cadence (weekly vs every 3 weeks). On price 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. Hidden Blocks sells 8 one-off in-app purchases. 3D Cube Assembly asks for nothing beyond the download.
3D Cube Assembly ships an update every 3 weeks, Hidden Blocks weekly. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.
| Parameter | 3D Cube Assembly | Hidden Blocks |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 73 MB | 89 MB |
| Age rating | 4+ | 4+ |
| Developer | 晓清 周 | Logan Land |
In-app purchases
3D Cube Assembly
No in-app purchases
Hidden Blocks
- 10 Gems$0.99
- 20 Gems$1.99
- Unlimited Play · 3 Hours$2.99
Show 5 moreShow fewer
- 50 Gems$4.99
- Unlimited Play · 24 Hours$6.99
- 125 Gems$9.99
- 250 Gems$19.99
- 700 Gems$49.99
Questions
Is 3D Cube Assembly free?
Is Hidden Blocks free?
Do 3D Cube Assembly or Hidden Blocks have ads?
Which is updated more often, 3D Cube Assembly or Hidden Blocks?
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