Comparison

Pythagoras Calculator vs ViFi

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

Head to head
About

Pythagoras Calculator

Easily calculate any side of a right-angled triangle using the Pythagorean theorem. Input two sides to find the third, with all calculations saved in a history. Supports fractions and offers an ad-free option.

Highlights
  • Pythagorean theorem calculations
  • Calculate any of the three sides
  • History of calculations
  • Supports fraction input
  • Shareable solutions
  • Ad-free option
Features
Read full description

Finish your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter two sides and calculate the third using the Pythagorean theorem. HOW IT WORKS Enter your values in the correct fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. We cannot draw any conclusions about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps are always fully available. If you need many solutions in a short time, various purchase options are available. EXTRAS - curated learning videos - feedback on incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.

About

ViFi

Features
Read full description

ViFi ile üniversite sınavlarına hazırlanmak artık çok daha kolay. Üniversiteni, fakülteni ve bölümünü seç; derslerine ait geçmiş vize, final, ara sınav, bütünleme ve quiz sorularına tek bir uygulamadan ulaş. Geçmiş sınavlar parmaklarının ucunda. Nereden çalışacağını bilemediğin anlarda gerçek sınav sorularıyla pratik yap, konuları pekiştir ve sınavlara güvenle gir. ÖNE ÇIKAN ÖZELLİKLER • Bölümüne özel arşiv: Üniversite, fakülte ve bölüm bazında düzenlenmiş geçmiş sınavlar • Her tür sınav: Vize, final, ara sınav, bütünleme, mazeret ve quiz • Sınav ekle, coin kazan: Elindeki sınavları paylaş, onaylandıkça coin kazan • Coin ile aç: Kazandığın coin'lerle kilitli sınavları kalıcı olarak aç • Kolay görüntüleme: Görsel ve PDF sınavları yakınlaştırarak rahatça incele • Bildirimler ve duyurular: Yeni içerik ve önemli duyurulardan anında haberdar ol • Son görüntülenenler: Kaldığın yerden hızlıca devam et ViFi, öğrencilerin katkılarıyla büyüyen bir topluluk arşividir. Sen de sınavlarını ekleyerek hem arşivi zenginleştir hem coin kazan. Hemen başla, bölümünü seç ve sınavlara bir adım önde gir!

Screenshots

Pythagoras Calculator4 screens
ViFi4 screens

Verdict

The call

The clearest difference is in-app purchases: ViFi at none against Pythagoras Calculator's 8. ViFi also leads on update cadence (every 4 days vs every 4 weeks). Pythagoras Calculator's advantage is iOS requirement (15.0 vs 17.0). On price, ads 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

Both are free to download. Pythagoras Calculator sells 8 one-off in-app purchases. ViFi asks for nothing beyond the download.

UpkeepUpdate frequency

Pythagoras Calculator ships an update every 4 weeks, ViFi every 4 days. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Pythagoras Calculator versus ViFi: the parameters behind the verdict, then further details
ParameterPythagoras CalculatorViFi
PriceFreeFree
Rating4.6 (248 ratings) — better—
Positive reviews83.0% of reviews—
Number of ratings248 — better—
Update frequencyEvery 4 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size179 MB18 MB
Age rating4+12+
DeveloperGlindemann, Sennoun, Langer GbREmre Buyuker

Bugs and requests

Pythagoras Calculator

Reported bugs

6 issues
  • App crashes or fails to calculate
  • Paid ad removal not working properly
  • Fraudulent payment processing through third-party sites
  • Occasional incorrect calculation results
  • App not functioning on iPhone 5SE and older devices
Show 1 more
  • Persistent ads despite payment for removal

Requested features

6 requests
  • Calculate triangle angles
  • Support angle-based calculations with one side
  • Better monetization without aggressive ads
  • Improved ratings system
  • Real-time results display
Show 1 more
  • Support for non-right triangles

ViFi

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Pythagoras Calculator

One-time8
  • +30 User Tokens$0.29
  • +1 Convenience Token / 6h, max. +2$0.59
  • +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 more
  • +150 User Tokens$0.99
  • +300 User Tokens$1.49
  • +4 Convenience Tokens / 6h, max. +8$1.59
  • Remove Ads$1.99
  • Lifetime Access$1.99
None

ViFi

No in-app purchases

Questions

Is Pythagoras Calculator free?
Pythagoras Calculator is free to download, with in-app purchases available.
Is ViFi free?
ViFi is free to download, with no in-app purchases.
Do Pythagoras Calculator or ViFi have ads?
Neither Pythagoras Calculator nor ViFi shows ads.
Which is updated more often, Pythagoras Calculator or ViFi?
Pythagoras Calculator ships an update every 4 weeks, and ViFi every 4 days. Most recently, Pythagoras Calculator was updated on October 24, 2026 and ViFi on October 24, 2026.

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