Comparison

TapTapBlocks vs Universal Zoom

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

Head to head
About

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.

Highlights
  • 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
Features
Read 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

About

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.

Highlights
  • 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
Features
Read 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

TapTapBlocks2 screens
Universal Zoom4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 1, 2026 and November 13, 2026 respectively.

Scorecard6 real differences · 4 level
TapTapBlocks versus Universal Zoom: the parameters behind the verdict, then further details
ParameterTapTapBlocksUniversal Zoom
PriceFree — better$5.99
Rating4.3 (94 ratings)4.8 (369 ratings) — better
Positive reviews70.6% of reviews96.7% of reviews — better
Number of ratings94369 — better
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Apple TV
Requires iOS13.0 — better17.0
Further details — not scored
Size4 MB176 MB
Age rating4+4+
DeveloperPaul HangasGamifyIt

Customer experience

TapTapBlocks

All ratings90 ratings
Positive80.0%
Neutral8.9%
Negative11.1%
Written reviews34 reviews
Positive70.6%
Neutral11.8%
Negative17.6%

Universal Zoom

All ratings367 ratings
Positive95.6%
Neutral1.9%
Negative2.5%
Written reviews391 reviews
Positive96.7%
Neutral1.5%
Negative1.8%

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

None

TapTapBlocks

No in-app purchases

None

Universal Zoom

No in-app purchases

Questions

Is TapTapBlocks free?
TapTapBlocks is free to download, with no in-app purchases.
Is Universal Zoom free?
Universal Zoom costs $5.99, with no in-app purchases.
Which has better reviews, TapTapBlocks or Universal Zoom?
Universal Zoom is rated higher. TapTapBlocks averages 4.3 out of 5 from 94 ratings, while Universal Zoom averages 4.8 from 369 ratings.
Do TapTapBlocks or Universal Zoom have ads?
Neither TapTapBlocks nor Universal Zoom shows ads.
Which is updated more often, TapTapBlocks or Universal Zoom?
TapTapBlocks ships an update every 4 months, and Universal Zoom every 4 months. Most recently, TapTapBlocks was updated on November 1, 2026 and Universal Zoom on November 13, 2026.

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