Comparison

Sage vs KORTEK

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

Head to head
About

Sage

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AfetHoca helps you learn by thinking, not just copying answers! Take a photo of your question — AfetHoca's AI reads it and guides you with Socratic hints. No direct answers, just smart clues that help you truly understand. PHOTO QUESTION HELPER - Snap a photo of any homework question - AI reads and analyzes the problem - Get step-by-step hints to reach the answer yourself SOCRATIC METHOD - Doesn't give answers — teaches you to think - Each hint brings you closer to understanding - Real learning, not memorization STUDY FLASHCARDS + SPACED REPETITION - 420+ exam flashcards covering all subjects - Review Mode: Don't Know / Hard / Got It - SM-2 algorithm shows cards at exactly the right time - Focus on your weak spots, skip what you already know PRACTICE TEST ANALYSIS - Track your score trend with charts - Automatically identify your weakest subjects - See your improvement between first and latest tests - Organize unanswered questions by subject AI STUDY PLANNER - Personalized weekly plan based on your weak subjects - Priority schedule based on days left until exam - AI-powered strategy: SAT, AP, ACT, college prep STUDY TIMER & POMODORO - Classic 25/5 Pomodoro or custom single timer - Beautiful candle animation theme - Set daily and weekly study goals - Live Activity — track time on your lock screen ALL SUBJECTS - Math, Geometry, Physics, Chemistry, Biology - SAT, AP, ACT, and college exam preparation - Suitable for all grade levels COMMUNITY & GROUPS - Create study groups with friends - Share questions and study together - Join communities and collaborate AfetHoca — The AI that teaches you HOW to think. Set your planner, stay focused, learn deeply.

About

KORTEK

Features
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Rereading works — for about five minutes. A week later, the students who had tested themselves recalled 61% of the ideas from the text; those who had only reread recalled 40% (Roediger & Karpicke, Psychological Science, 2006). KORTEK tests you, one moment before you forget. Tell KORTEK what you want to learn. Anything: science, history, languages, finance, law, music theory. It writes a short lesson for you, checks what stuck with a quick quiz, then schedules the exact moments to bring it back. WHAT YOU GET • A daily session, already planned — a few reviews, one new idea, about 15 minutes • Memory Score: see what is actually holding in your head, and what is fading • Exam mode: give it a date, it builds the plan backwards from your test • Turn your own notes into lessons: photograph a page • An on-demand tutor: stuck on something? It explains at your level • A league that rewards consistency, nothing else WHY IT WORKS Spaced repetition is one of the most studied effects in memory science. Reviewing at increasing intervals — one day, three days, a week, a month — keeps knowledge alive with a fraction of the effort of cramming. KORTEK does the scheduling for you. Five minutes one day, fifteen the next. What matters is coming back. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kortek.app/legal

Screenshots

Sage4 screens
KORTEK4 screens

Verdict

The call

The clearest difference is update cadence: KORTEK at every 2 days against Sage's every 2 months. KORTEK also leads on device support and iOS requirement (15.0 vs 17.0). On price 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

Both are free to download. Sage sells 3 in-app purchases, starting at $2.99 per 7 days and KORTEK sells 4 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sage ships an update every 2 months, KORTEK every 2 days. The most recent releases landed on October 14, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 3 level
Sage versus KORTEK: the parameters behind the verdict, then further details
ParameterSageKORTEK
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 days — better
Ads—No
In-app purchasesYesYes
Devices—iPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size17 MB16 MB
Age rating4+4+
DeveloperSelin Gursoy YucelALEXIS SACHA ARTHUR BRASSEUR

In-app purchases

3 purchases

Sage

Subscriptions3
  • Weekly3 Days trial$2.997 Days
  • Monthly3 Days trial$4.991 Month
  • Yearly3 Days trial$24.991 Year
4 purchases

KORTEK

Subscriptions4
  • KORTEK+ mensuel$8.991 Month
  • KORTEK Family$24.991 Month
  • KORTEK+ annuel7 Days trial$89.991 Year
Show 1 more
  • KORTEK Family$249.991 Year

Questions

Is Sage free?
Sage is free to download, with in-app purchases available.
Is KORTEK free?
KORTEK is free to download, with in-app purchases available.
Which is updated more often, Sage or KORTEK?
Sage ships an update every 2 months, and KORTEK every 2 days. Most recently, Sage was updated on October 14, 2026 and KORTEK on October 29, 2026.

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