Comparison

Periodic Table Memorization vs Kartei

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

Head to head
About

Periodic Table Memorization

Master element symbols and atomic numbers with interactive study modes. Build habits with daily streaks and reminders, track progress with charts, and prepare for chemistry exams. Works offline and offers a free trial.

Highlights
  • Four study modes: flashcards, quiz, fill-in-the-blank, puzzle
  • Daily streaks and reminders
  • Progress tracking charts
  • Offline functionality
  • Exam preparation for chemistry
  • Memorize element symbols and atomic numbers
Features
Read full description

Master the periodic table and element symbols while having fun. Choose from 4 study modes to learn the way that works best for you. 4 STUDY MODES • Flashcards – flip and memorize • Quiz – test yourself with multiple choice • Fill-in-the-Blank – complete the periodic table • Puzzle – place elements in the right spot STAY MOTIVATED • Daily streaks to build a habit • Daily reminder notifications (fun facts & mini quizzes) • Progress charts to track your mastery PERFECT FOR • High school & college chemistry, exam prep • Memorizing element symbols and atomic numbers • Students and lifelong learners Works offline. Just one question a day — become a periodic table master! PRICING Enjoy every feature free for 14 days. After the trial, a single one-time purchase unlocks all features and removes ads — yours forever. No subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/periodictable-privacy-policy/home

About

Kartei

Features
Read full description

Turn good questions into knowledge that stays. Kartei combines your own flashcards with spaced repetition in a focused, native study space for iPhone, iPad and Mac. KNOW WHAT TO STUDY NEXT See which cards are due today. Reveal the answer, rate your recall honestly and let FSRS-6 calculate the next review. Choose your target retention and daily time budget. MAKE CARDS THAT FIT YOUR SUBJECT Create question-and-answer cards, cloze deletions and image occlusions. Add explanations, sources and tags. Organize your knowledge into decks, then find cards with search and filters. GIVE EQUATIONS THEIR SPACE Write mathematical and chemical formulas in TeX. Equations render offline, making Kartei a useful home for physics, calculus, biochemistry and other subjects that need more than plain text. THINK IN YOUR OWN HANDWRITING Write on the front and back of cards with your finger on iPad and iPhone, or with Apple Pencil on iPad. Your strokes stay editable. View and study handwritten cards on Mac. KEEP THE EXPLANATION WITH THE QUESTION Add images, voice recordings, audio, video and PDF attachments to your cards. Bring the material that helps you understand and remember. STUDY LOCALLY. TAKE YOUR COLLECTION WITH YOU. Your collection is stored on your device. Export cards, media and review history together, then import them on another device. Bring existing text cards into Kartei through CSV or TSV. SEE YOUR ACTUAL PROGRESS Track card reviews and the progress of your decks. Choose light or dark mode, and use keyboard shortcuts on Mac to keep your workflow moving. Start with a sample collection covering physics, biochemistry and calculus. Then build your own flashcards for school, university, vocabulary or professional learning. KARTEI PRO Unlimited cards and decks, spaced repetition, formulas, images and export are free. Kartei Pro adds handwriting and sketches, audio and dictation, video and PDF. Choose a monthly or yearly subscription or a one-time purchase. Price and duration are shown before purchase. Subscriptions renew automatically unless canceled in your Apple subscriptions. A free trial is offered when eligible. Purchases can be restored in the app. Privacy Policy: https://dimar2811.github.io/biohacker-support/kartei/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Periodic Table Memorization4 screens
Kartei4 screens

Verdict

The call

The clearest difference is ads: Kartei at none against Periodic Table Memorization's shown. Kartei also leads on update cadence (every 2 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement 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. Periodic Table Memorization sells 1 one-off in-app purchase and Kartei sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Periodic Table Memorization ships an update every 3 weeks, Kartei every 2 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
Periodic Table Memorization versus Kartei: the parameters behind the verdict, then further details
ParameterPeriodic Table MemorizationKartei
PriceFreeFree
Rating4.4 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better18.0
Further details — not scored
Size18 MB12 MB
Age rating4+4+
DeveloperYU KORIKIMarc Hammerschmidt

In-app purchases

1 purchases

Periodic Table Memorization

One-time1
  • Premium lifetime$1.99
3 purchases

Kartei

Subscriptions2
  • Kartei Pro Monthly$3.991 Month
  • Kartei Pro Yearly7 Days trial$17.991 Year
One-time1
  • Kartei Pro Lifetime$44.99

Questions

Is Periodic Table Memorization free?
Periodic Table Memorization is free to download, with in-app purchases available.
Is Kartei free?
Kartei is free to download, with in-app purchases available.
Do Periodic Table Memorization or Kartei have ads?
Periodic Table Memorization shows ads; Kartei does not.
Which is updated more often, Periodic Table Memorization or Kartei?
Periodic Table Memorization ships an update every 3 weeks, and Kartei every 2 days. Most recently, Periodic Table Memorization was updated on October 31, 2026 and Kartei on October 31, 2026.

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