Comparison

Back in Time for iPhone vs abc School (lowercase letters)

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

abc School (lowercase letters)

This app uses a classic memory game to help children learn letters and build focus. Children flip cards to hear letters spoken, match them, and earn rewards. It offers a fun, engaging, and multilingual approach to early literacy and cognitive development.

Highlights
  • Letter recognition game
  • Multilingual support (8 languages)
  • Auditory letter pronunciation
  • Reward-based learning
  • Cognitive skill development
  • Focus and pattern recognition
Features
Read full description

Children can discover the joy of learning letters through a classic memory game! Flip cards to hear letters read aloud, match them, and unlock fun bonuses along the way. Praise and a playful mix of sound, images, and rewards make learning exciting, engaging, and easy. Start playing and make learning letters an adventure! Professionally recorded voices in English, Danish, Spanish, German, Norwegian, Swedish, French, and Italian. Memory games do more than entertain – they build focus, problem-solving, and pattern recognition skills, making them a great way to boost early literacy and cognitive development. Discover more fun educational games at memoryschool.org.

Screenshots

Back in Time for iPhone4 screens
abc School (lowercase letters)3 screens

Verdict

The call

The clearest difference is rating: abc School (lowercase letters) at 5.0 against Back in Time for iPhone's 3.8. abc School (lowercase letters) also leads on price ($1.99 vs $4.99) and device support (3 vs 1). Back in Time for iPhone's advantage is ratings volume (16 vs 2). On update cadence, 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

Back in Time for iPhone costs $4.99 and abc School (lowercase letters) $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

abc School (lowercase letters) holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Back in Time for iPhone has 16 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Back in Time for iPhone ships an update every 8 months, abc School (lowercase letters) every 5 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Back in Time for iPhone versus abc School (lowercase letters): the parameters behind the verdict, then further details
ParameterBack in Time for iPhoneabc School (lowercase letters)
Price$4.99$1.99 — better
Rating3.8 (16 ratings)5.0 (2 ratings) — better
Positive reviews71.7% of reviews—
Number of ratings16 — better2
Update frequencyEvery 8 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size625 MB23 MB
Age rating4+4+
DeveloperLandkaAnders Peter Amsnaes

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%

abc School (lowercase letters)

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Back in Time for iPhone

No in-app purchases

None

abc School (lowercase letters)

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 abc School (lowercase letters) free?
abc School (lowercase letters) costs $1.99, with no in-app purchases.
Which has better reviews, Back in Time for iPhone or abc School (lowercase letters)?
abc School (lowercase letters) is rated higher. Back in Time for iPhone averages 3.8 out of 5 from 16 ratings, while abc School (lowercase letters) averages 5.0 from 2 ratings.
Do Back in Time for iPhone or abc School (lowercase letters) have ads?
Neither Back in Time for iPhone nor abc School (lowercase letters) shows ads.
Which is updated more often, Back in Time for iPhone or abc School (lowercase letters)?
Back in Time for iPhone ships an update every 8 months, and abc School (lowercase letters) every 5 months. Most recently, Back in Time for iPhone was updated on October 23, 2026 and abc School (lowercase letters) on October 24, 2026.

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