TapTapBlocks vs Universal Zoom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TapTapBlocks
Build and design with colorful 3D blocks limited only by your imagination. Easily add, remove, and rotate blocks with intuitive touch controls. Save and share your unique creations with friends.
- Unlimited colorful building block combinations
- Single tap to add or remove blocks
- One-finger 3D rotation
- Pinch and zoom for detailed views
- Save and email creations
Read full descriptionHide full description
TapTapBlocks brings colorful building blocks to life in 3D! Limited only by your imagination, simply tap any block to add a new block at that spot, rotate the blocks in 3D with just one finger. Features: • Create unlimited combinations with colorful building blocks • Add or remove blocks with a single tap • Drag one finger to rotate the blocks in 3D • Pinch and Zoom for a better view • Spin your blocks on the screen to show off your creation in 3D • Save pictures of your creations • Email pictures of your blocks to your friends
Universal Zoom
Explore the vastness of the universe, from subatomic particles to galaxies, with interactive scale comparisons and clear explanations. Discover scientific concepts visually and intuitively, making complex topics accessible to everyone. This app offers a deep dive into physics, biology, and astronomy with high-quality visuals and detailed information.
- Seamless zoom from Planck length to observable universe
- Side-by-side object comparisons
- Audio narration and accessible explanations
- Exploration of particles, cells, planets, and galaxies
- High-resolution images and original artwork
- Available in 40 languages
- Metric, imperial, or powers-of-ten units
Read full descriptionHide full description
The universe is endlessly vast. A single atom is impossibly small. And somewhere between those two extremes lies everything that has ever existed. We believe that feeling — the electric, spine-tingling sense of scale — belongs to everyone. Not just scientists. Not just students. Everyone. That's why we built Universal Zoom. WHAT YOU CAN DO • Zoom seamlessly from the Planck length to the edge of the observable universe — about 300 objects presented to perfect scale. • Compare any two objects side by side: how many Earths fit inside Jupiter? How does a virus measure up against a skyscraper? Instant, visual, intuitive. (No other scale app lets you do this.) • Go deeper with audio narration and short, accessible explanations — the facts that matter, in plain language. WHAT YOU'LL EXPLORE • Elementary particles — quarks, leptons, and bosons. Atomic nuclei, atoms, and DNA. Living cells. Animals and landmarks. Planets, stars, and galaxies. A deep dive into physics, biology, and astronomy — with short, plain-language articles that make even particle physics easy to grasp — in 40 languages, with metric, imperial, or powers-of-ten units. • Real high-resolution photos and electron microscope images, where possible. Original artwork for things that can't be photographed — like elementary particles and DNA structures. • No ads. No in-app purchases. Pure discovery. BUILT WITH YOU We're a team of two (Andrey and Oksana) from Canada who have poured a decade into this app because we genuinely love science. Most objects come from community suggestions — carefully fact-checked and updated with every new discovery. Over 200 more are already in the queue. FOR EDUCATORS Used by teachers worldwide to visualize scale, build measurement intuition, and turn abstract numbers into "aha" moments. Available at 50% off for schools via Apple School Manager (20+ copies). FOLLOW THE JOURNEY Sneak peeks and upcoming additions: @gamifyitapps on X, YouTube, and TikTok. Feedback and ideas: gamifyitapps.com/contact
Screenshots
Verdict
The clearest difference is price: TapTapBlocks at Free against Universal Zoom's $5.99. TapTapBlocks also leads on iOS requirement (13.0 vs 17.0). Universal Zoom's advantage is rating (4.8 vs 4.3) and review sentiment (97% vs 71%). On update cadence, ads, 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
TapTapBlocks is free to download; Universal Zoom costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Universal Zoom holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 94 and 369 respectively. Written reviews point the same way: 71% of TapTapBlocks's written reviews are positive against 97% of Universal Zoom's.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 1, 2026 and November 13, 2026 respectively.
| Parameter | TapTapBlocks | Universal Zoom |
|---|---|---|
| Price | Free — better | $5.99 |
| Rating | 4.3 (94 ratings) | 4.8 (369 ratings) — better |
| Positive reviews | 70.6% of reviews | 96.7% of reviews — better |
| Number of ratings | 94 | 369 — better |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 176 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Hangas | GamifyIt |
Customer experience
TapTapBlocks
Universal Zoom
Bugs and requests
TapTapBlocks
Not enough reviews yet to summarise bugs or requests.
Universal Zoom
Reported bugs
3 issues- Incorrect information for some objects
- Compatibility issues on older devices
- Typos and minor errors in text
Requested features
5 requests- Add more objects and comparisons
- Customizable object feature
- Support for more languages
- Ability to toggle between metric and imperial units
- Search and filtering options
In-app purchases
TapTapBlocks
No in-app purchases
Universal Zoom
No in-app purchases
Questions
Is TapTapBlocks free?
Is Universal Zoom free?
Which has better reviews, TapTapBlocks or Universal Zoom?
Do TapTapBlocks or Universal Zoom have ads?
Which is updated more often, TapTapBlocks or Universal Zoom?
Other comparisons















