Comparison

Aprovado vs HiDuck

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

Head to head
About

Aprovado

This app helps students prepare for public exams, university entrance tests, and certifications. It allows users to track study time, analyze performance with detailed reports, and set reminders. Premium features offer advanced planning, review automation, and exercise logging.

Highlights
  • Track study time with timer
  • Set study alarms
  • Detailed progress graphs and reports
  • Share study performance
  • Sync data across devices
  • Automatic backup
  • Study planning and review features
Features
Read full description

Aprovado: Your Ultimate Study Companion! Since 2012, Aprovado has been helping students prepare and succeed in public exams, university entrance tests, High School Exams, Bar Exams, and various certifications. With Aprovado, you can effortlessly track your study progress, analyze your performance, and stay in control of your exam preparation - all in one app! Key Features: * Track Your Study Time: Easily log your study time, automatically with a timer or manually after each session. Stay on top of how many hours you’ve invested toward passing your exam - whether it's SAT, Bar, or any other tests. * Set Study Alarms: Need help managing your time? Set an alarm to remind you when it's time to wrap up your study session. * Detailed Graphs & Reports: Visualize your progress with in-depth graphs and reports, pinpoint the subjects where you need improvement, and refine your study strategy to ace your exams. * Share Your Progress: Keep your friends and family in the loop! Share your daily performance and study history on any social network with just a tap. * Sync Across Devices: Study anytime, anywhere! Sync your data across your phone, tablet, or computer - whether you're online or offline. * Automatic Backup: Never lose your progress! With your data synced, your study history is automatically backed up, so you can switch devices with ease. Dive Deeper with Premium Features: Want to take your studies to the next level? Aprovado offers three optional feature packages: * Study Planning + Study Cycle: Plan your weekly/monthly goals, set a study cycle, and track your goals over time. * Study Review: Automate your review schedule. Choose specific days or set custom intervals (e.g., every Friday or every 30 days) to ensure consistent review sessions. * Exercise Log + Study Type: Log your exercises, track your study methods, and see performance graphs based on correct answers. No subscriptions, just one-time purchases for lifetime access to the extra features! Aprovado has everything you need to organize your study routine and crush your exams. Perfect for anyone aiming to excel in mock exams and secure their place in public exams, Bar exams, or High School exams. Download now and start your path to success! ------- For more info: https://aprovadoapp.com/help Questions or feedback? Contact us at https://aprovadoapp.com/contact — we’d love to help!

About

HiDuck

Features
Read full description

With Hi Duck, you'll never forget what you learned! This app combines the spaced review technique with learning tools that facilitate learning retention. Record audio explaining the content to your Rubber Duck – the "talk to your duckling" technique that facilitates memorization. Main Features: - Spaced Review: Receive reminders to review your audio recordings after 1 day, 1 week, and 30 days. - Smart Summary: After saving an audio recording, you can automatically generate a smart summary of what was said, available in your Notes for easy reference. - Gamification: Complete challenges, earn coins, and unlock exclusive accessories to customize your duck! - Complete Customization: Organize your studies with tags for each category and highlight your notes with colors, all to make your learning your own.

Screenshots

Aprovado4 screens
HiDuck3 screens

Verdict

The call

The clearest difference is in-app purchases: HiDuck at none against Aprovado's 6. HiDuck also leads on ads (none vs shown). Aprovado's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and update cadence 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. Aprovado sells 6 one-off in-app purchases. HiDuck asks for nothing beyond the download.

UpkeepUpdate frequency

Aprovado ships an update fortnightly, HiDuck every 10 days. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Aprovado versus HiDuck: the parameters behind the verdict, then further details
ParameterAprovadoHiDuck
PriceFreeFree
Rating4.9 (33 ratings) — better—
Positive reviews89.9% of reviews—
Number of ratings33 — better—
Update frequencyFortnightlyEvery 10 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size32 MB24 MB
Age rating4+4+
DeveloperSand Robot Empreendimentos Digitais LTDA MEJoao Mergulhao

In-app purchases

6 purchases

Aprovado

One-time6
  • Exercise Log + Study Type$3.99
  • Registro de Exercícios$3.99
  • Planning + Study Cycle$5.49
Show 3 more
  • Study Reviews$5.49
  • Planejamento + Ciclo de Estudo$5.49
  • Revisão de Estudos$5.49
None

HiDuck

No in-app purchases

Questions

Is Aprovado free?
Aprovado is free to download, with in-app purchases available.
Is HiDuck free?
HiDuck is free to download, with no in-app purchases.
Do Aprovado or HiDuck have ads?
Aprovado shows ads; HiDuck does not.
Which is updated more often, Aprovado or HiDuck?
Aprovado ships an update fortnightly, and HiDuck every 10 days. Most recently, Aprovado was updated on November 1, 2026 and HiDuck on October 25, 2026.

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