Comparison

Appruébalo vs StudyOS

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

Head to head
About

Appruébalo

Prepare for your university entrance exams with this educational game. It features over 2000 questions and tracks your progress with detailed statistics from your last 15 attempts. Study anytime, anywhere, in a fun and engaging way.

Highlights
  • Over 2000 practice questions
  • Gamified learning system
  • Progress statistics for last 15 attempts
  • Study anytime, anywhere
  • Option to purchase specific subjects
  • Unlock full content with PRO version
Features
Read full description

¡Bienvenido futuro universitario! Appruébalo es una app facilitadora del conocimiento que te ayudará a prepararte mejor para aprobar tu examen de admisión a la Universidad. Te ofrecemos un sistema de juego con más de 2000 preguntas, en el que podrás estudiar donde quiera que te encuentres de manera sencilla y divertida. Appruébalo te brinda estadísticas de avance de tus últimos 15 intentos, para que lleves una escala de tu aprovechamiento. Te ofrecemos un esquema de compras, donde solo estarás pagando lo que tu uses, puedes adquirir materias especificas o puedes desbloquear el contenido completo por un precio increíblemente bajo adquiriendo nuestra versión PRO.

About

StudyOS

Transform your study materials into interactive flashcards, summaries, and quizzes with AI. This app efficiently prepares you for exams and helps you master concepts on the go, making learning faster and more engaging.

Highlights
  • AI-generated flashcards
  • Automated summaries
  • Personalized quizzes
  • Material upload (notes, PDFs, images)
  • Spaced repetition techniques
  • Progress tracking
Features
Read full description

Say goodbye to tedious and traditional methods. With StudyOS, your notes, PDFs, or even images are instantly transformed into smart flashcards, quick summaries, and multiple-choice questions – without manual copy-pasting, without hassle. Our powerful AI takes your material and quickly generates dynamic flashcards, summaries, and personalized quizzes, helping you prepare efficiently for big exams or review key concepts on the go. Focus on what truly matters, wherever you are. StudyOS is designed to boost your study effectiveness, making learning faster, more engaging, and with a cleaner, smoother interface. Simply upload your study materials and let our AI turn them into flashcards, summaries, and quizzes tailored to you. This main functionality is just the beginning of how StudyOS will revolutionize your learning. We’re just getting started! Soon you’ll be able to do even more, all powered by AI: generate quick summaries of your notes, create multiple-choice questions and more features from your study materials, test yourself, and master concepts with advanced spaced repetition techniques. Download StudyOS today and study smarter, not harder. Upgrade to StudyOS PRO for unlimited AI access and advanced features. Our terms: https://studyosapp.app/en/terms Our privacy policy: https://studyosapp.app/en/privacy

Screenshots

Appruébalo4 screens
StudyOS4 screens

Verdict

The call

The clearest difference is rating: StudyOS at 4.9 against Appruébalo's 2.0. StudyOS also leads on update cadence (every 9 days vs every 3 months) and ratings volume (91 vs 3). Appruébalo's advantage is iOS requirement (9.0 vs 17.1). On price, 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

Both are free to download. Appruébalo sells 2 one-off in-app purchases and StudyOS sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

StudyOS holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: StudyOS has 91 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Appruébalo ships an update every 3 months, StudyOS every 9 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Appruébalo versus StudyOS: the parameters behind the verdict, then further details
ParameterAppruébaloStudyOS
PriceFreeFree
Rating2.0 (3 ratings)4.9 (91 ratings) — better
Positive reviews26.1% of reviews—
Number of ratings391 — better
Update frequencyEvery 3 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.1
Further details — not scored
Size8 MB118 MB
Age rating4+4+
DeveloperDiego De la SanchaDANIEL PONCELAS VARGAS

Customer experience

Appruébalo

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews46 reviews
Positive26.1%
Neutral4.3%
Negative69.6%

StudyOS

All ratings66 ratings
Positive97.0%
Neutral1.5%
Negative1.5%

In-app purchases

2 purchases

Appruébalo

One-time2
  • Compra de Materia$0.99
  • Test Simulator$0.99
4 purchases

StudyOS

Subscriptions4
  • Premium Access$4.997 Days
  • Premium Access3 Days trial$12.991 Month
  • Premium Access1 Month trial$12.991 Month
Show 1 more
  • Premium Access3 Days trial$69.991 Year

Questions

Is Appruébalo free?
Appruébalo is free to download, with in-app purchases available.
Is StudyOS free?
StudyOS is free to download, with in-app purchases available.
Which has better reviews, Appruébalo or StudyOS?
StudyOS is rated higher. Appruébalo averages 2.0 out of 5 from 3 ratings, while StudyOS averages 4.9 from 91 ratings.
Do Appruébalo or StudyOS have ads?
Neither Appruébalo nor StudyOS shows ads.
Which is updated more often, Appruébalo or StudyOS?
Appruébalo ships an update every 3 months, and StudyOS every 9 days. Most recently, Appruébalo was updated on October 20, 2026 and StudyOS on October 24, 2026.

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