Comparison

StudyTodo vs Cardify

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

Head to head
About

StudyTodo

Features
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Are you juggling multiple study apps just to stay organized? StudyTodo is the all-in-one app for learners — combining every tool you need into a single, seamless experience. Log sessions, track progress, and plan your schedule all from one screen. 【Key Features】 Pomodoro Timer Three modes: Pomodoro, Countdown, and Stopwatch. Build a rhythm of focus and rest to power through long study sessions. Task Management Organize intuitively by subject or category. Long-press to quickly save tasks and move them to your to-do list with ease. Spaced Repetition (SRS) Scientifically proven SRS algorithm to supercharge memorization. Routine features help you build lasting study habits. Study Log & Analytics Visualize your study time. Break it down by subject and time of day to understand and improve your habits. Schedule Management Manage tasks and study plans on a calendar. Build the habit of planning and following through. Offline Support Works without internet. Perfect for commutes, libraries, and flights. 36 Languages Supports Japanese, English, Korean, Chinese, Spanish, Arabic, Hindi, and 29 more. 【Who It's For】 · Students preparing for exams or certifications · Anyone who wants to use the Pomodoro Technique · Language learners looking to memorize vocabulary efficiently · People building consistent study habits · Those who want to replace multiple apps with one 【Pricing】 All core features are completely free.

About

Cardify

Features
Read full description

Cardify turns any text into smart vocabulary flashcards — powered by AI. Paste any article or transcript and Cardify instantly extracts key vocabulary (B1–C1), fills in meanings, example sentences, and IPA pronunciation. Flashcards ready in seconds. == STORY LEARNING == Learn through real audio stories — listen, read along sentence by sentence, and tap any word for an instant definition. Save unknown words to your decks while listening. Filter by level and topic, resume anytime. == SMART STUDY == - Spaced Repetition (SRS): review cards at the perfect moment - 5 study modes: Flip Card, Multiple Choice, Type Answer, Listening, Meaning to Word - Streak tracking, accuracy stats, heatmap calendar, 30+ achievement badges == AI FEATURES == - AI Generate: paste text → up to 20 cards created automatically - AI Auto-fill: type a word → meaning, example & IPA filled instantly - AI Explain & AI Sentence: deeper context during study == SYNC & ORGANIZE == - Cloud sync via Google or Email — study on any device - Offline-first: works without internet, syncs when reconnected - Unlimited decks & cards (Pro) == FREE & PRO == Free: 3 decks, 20 cards/deck. AI features unlocked by watching short rewarded ads. Pro: Unlimited decks & cards, 50 AI Generate + 200 AI Auto-fill/month, premium stories, ad-free. Supports English, Vietnamese, Japanese, Korean, Chinese. Light & Dark mode. Daily reminders to build a consistent habit. Preparing for IELTS, TOEFL, JLPT, or just building everyday vocabulary — Cardify helps you learn smarter, not harder. == SUBSCRIPTION INFO == Cardify PRO is available via two auto-renewable subscription options: • Monthly: $1.99/month • Yearly: $19.99/year ($1.66/month) Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel subscriptions in your App Store account settings. Terms of Use: https://cardify.nezumilab.com/terms.html Privacy Policy: https://cardify.nezumilab.com/privacy.html

Screenshots

StudyTodo4 screens
Cardify4 screens

Verdict

The call

The clearest difference is update cadence: Cardify at every 3 days against StudyTodo's every 10 days. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

StudyTodo ships an update every 10 days, Cardify every 3 days. The most recent releases landed on September 20, 2026 and September 6, 2026 respectively.

Scorecard1 real difference · 5 level
StudyTodo versus Cardify: the parameters behind the verdict, then further details
ParameterStudyTodoCardify
PriceFreeFree
Update frequencyEvery 10 daysEvery 3 days — better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size39 MB77 MB
Age rating4+4+
DeveloperTatsuya SatoKunai

In-app purchases

None

StudyTodo

No in-app purchases

None

Cardify

No in-app purchases

Questions

Is StudyTodo free?
StudyTodo is free to download, with no in-app purchases.
Is Cardify free?
Cardify is free to download, with no in-app purchases.
Do StudyTodo or Cardify have ads?
Both StudyTodo and Cardify show ads.
Which is updated more often, StudyTodo or Cardify?
StudyTodo ships an update every 10 days, and Cardify every 3 days. Most recently, StudyTodo was updated on September 20, 2026 and Cardify on September 6, 2026.

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