Comparison

Back in Time for iPhone vs Univerzoom 3D

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

Head to head
About

Back in Time for iPhone

Explore the history of the universe, Earth, life, and civilization through interactive timelines, stunning visuals, and custom animations. This app offers an immersive learning experience with social and historical context for key events.

Highlights
  • Interactive timelines
  • Over 350 images
  • 60+ animations and videos
  • 200+ interesting facts
  • Offline access
  • Multilingual support
Features
Read full description

• "...a beautifully executed lesson on the history of the universe" - The New York Times • Winner of the WSA Mobile Award • Top1 iPhone Book App in 10 Countries • Featured by The New York Times (Top10 iPad Apps of the year) • Featured by the American Photo Magazine (Top 10 Photo eBooks of the year) For iPad download - Back in Time Back in Time will take you on a stunning exploration of the history of our Universe, Earth, Life and Civilization. A journey through time where each event is documented with social and historical context, several images, an illustrative timeline and little-known interesting facts. Custom made animations bring those events to life, creating an interesting, immersive learning experience. An imaginary clock will guide you through this quest, proposing a simple analogy: the entire Universe started 24 hours ago. The Big Bang, the source of time and space, is the first event in our journey – the clock reads 0:00 hours. Today, 13.7 billion years later, the clock reads midnight. In between is a sequence of key events that has brought us to where we are today. Explore them, place them in perspective, see how they relate and understand the connections. We invite you to take a step back and see the whole picture. :::: REVIEWS - iPad version :::: "The coolest history textbook you’ll find on the iPad" - Bob Tedeschi, The New York Times “The iPad could use more apps like this one.” - The Daily “...a beautifully executed lesson on the history of the universe and the evolution of life on earth. Great for high school students or parents who’d like to tutor younger children and enjoy a first-rate experience of their own...” - Bob Tedeschi, The New York Times “...the best iPad apps are those that combine coffee table-styled books with the fluid nature of the iPad’s interface. Back in Time is just that, it’s the story of the entire history of our universe made interactive on the iPad.” - Casey Chan, Gizmodo (App of the Day) “Back in Time is utterly gorgeous in its presentation. (...) The app is so easy to navigate that it is a delight to explore. Landka could scarcely have done a better job in putting everything together.” - Gwen Phua, Appmodo :::: FEATURES :::: Designed for iPhone; 47 chapters; Over 350 remarkable images; 60+ amazing animations and videos; 40+ illustrated timelines; More than 200 little-known interesting facts; Music by the compositor Rodrigo Leão; Developed in 7 different languages (English, Spanish, German, French, Portuguese, Japanese and Chinese); No internet connection required.

About

Univerzoom 3D

Explore the vastness of the universe and the intricacies of the microcosmos with intuitive touch controls. Compare celestial bodies, everyday objects, and subatomic particles to grasp their true scale. Discover fascinating facts and learn about the cosmos and beyond.

Highlights
  • Intuitive gesture-based scaling
  • Explore universe to atomic levels
  • Compare sizes of diverse objects
  • Learn facts about celestial bodies
  • Text-to-Speech for facts
  • External resource links
Currently charting
Read full description

This app gives you the superpower to scale the entire universe with a swipe of your fingers! Zoom out faster than light and see the cosmos from a whole new perspective. Compare the biggest objects to the tiniest and get a true sense of size. ZOOM • Control the scale with simple gestures • Zoom out billions of light years to the edge of the visible universe • Zoom in to microscopic dimensions, down to atoms and beyond • Easy for anyone to use — from kids to grandparents DISCOVER • Explore the scale of the universe and the microcosmos • Compare stars, planets, rockets, telescopes, animals, and everyday objects • Understand how our Sun measures up to other stars LEARN • Find stunning facts about selected objects, or let them be read aloud via Text-to-Speech • Access trusted external sources for deeper exploration • Perfect for curious minds, students, and science fans Download now and experience the universe like never before!

Screenshots

Back in Time for iPhone4 screens
Univerzoom 3D4 screens

Verdict

The call

The clearest difference is rating: Univerzoom 3D at 4.8 against Back in Time for iPhone's 3.8. Univerzoom 3D also leads on update cadence (monthly vs every 8 months) and review sentiment (97% vs 72%). On ads and in-app purchases 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

Back in Time for iPhone costs $4.99 and Univerzoom 3D $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Univerzoom 3D holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Univerzoom 3D has 288 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 72% of Back in Time for iPhone's written reviews are positive against 97% of Univerzoom 3D's.

UpkeepUpdate frequency

Back in Time for iPhone ships an update every 8 months, Univerzoom 3D monthly. The most recent releases landed on September 19, 2026 and September 27, 2026 respectively.

Scorecard9 real differences · 2 level
Back in Time for iPhone versus Univerzoom 3D: the parameters behind the verdict, then further details
ParameterBack in Time for iPhoneUniverzoom 3D
Price$4.99$2.99 — better
Rating3.8 (15 ratings)4.8 (288 ratings) — better
Positive reviews71.7% of reviews97.3% of reviews — better
Number of ratings15288 — better
Update frequencyEvery 8 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank—#79 — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size625 MB247 MB
Age rating4+4+
DeveloperLandkaLinda Schnetzinger

Customer experience

Back in Time for iPhone

All ratings15 ratings
Positive73.3%
Neutral0.0%
Negative26.7%
Written reviews53 reviews
Positive71.7%
Neutral5.7%
Negative22.6%

Univerzoom 3D

All ratings288 ratings
Positive96.2%
Neutral1.0%
Negative2.8%
Written reviews74 reviews
Positive97.3%
Neutral0.0%
Negative2.7%

In-app purchases

None

Back in Time for iPhone

No in-app purchases

None

Univerzoom 3D

No in-app purchases

Questions

Is Back in Time for iPhone free?
Back in Time for iPhone costs $4.99, with no in-app purchases.
Is Univerzoom 3D free?
Univerzoom 3D costs $2.99, with no in-app purchases.
Which has better reviews, Back in Time for iPhone or Univerzoom 3D?
Univerzoom 3D is rated higher. Back in Time for iPhone averages 3.8 out of 5 from 15 ratings, while Univerzoom 3D averages 4.8 from 288 ratings.
Do Back in Time for iPhone or Univerzoom 3D have ads?
Neither Back in Time for iPhone nor Univerzoom 3D shows ads.
Which is updated more often, Back in Time for iPhone or Univerzoom 3D?
Back in Time for iPhone ships an update every 8 months, and Univerzoom 3D monthly. Most recently, Back in Time for iPhone was updated on September 19, 2026 and Univerzoom 3D on September 27, 2026.

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