Comparison

Pith vs Atenium

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

Head to head
About

Pith

Features
Read full description

Pith helps you remember what you study, and stays out of the way while you do it. Make a card, or bring in the decks you already have, and let spaced repetition resurface each one at the moment you are about to forget it. No streaks to keep alive, no clutter. Just the next card, at the right time. It is built to feel like a small-press notebook rather than another grey app screen: serif type, warm paper tones, and a study flow with nothing in your way. REMEMBERS FOR YOU Every card is scheduled with FSRS, the modern spaced-repetition algorithm, so reviews land right before recall would slip. Prefer the classic method? Switch to SM-2 in a tap, and imported decks keep their own schedule. BRING YOUR DECKS Already use Anki? Import your .apkg files with cards, media, and progress intact, then export back out the same way. Spreadsheets come in too, through CSV or TSV. MORE THAN WORDS Add images, record or attach audio for pronunciation, and choose the card type that fits the material: basic, reversed, type-the-answer, cloze deletions, or image occlusion for diagrams and maps. BUILT FOR BIG DECKS Thousands of cards stay fast. Browse, search inside a deck, and study large imported sets without the app slowing down. SEE YOUR PROGRESS Retention rate, review history, a study heat map, and an upcoming-reviews forecast, each broken down per deck. ON EVERY APPLE DEVICE A native app for iPhone, iPad, and Mac, with a Today widget that keeps your reviews one glance away. PRIVATE BY DESIGN No account. No ads. No analytics or trackers of any kind. Your cards stay on your device, and with Pith Pro they sync through your own iCloud, which we never see. FREE, WITH ONE OPTIONAL UNLOCK Free includes one deck with unlimited cards and the full study experience. Pith Pro is a single $5.99 purchase, never a subscription. It unlocks unlimited decks, iCloud sync across your devices, and the cloze and image-occlusion card types. Questions or ideas? Email claudiu.sararu@gmail.com. Privacy policy: https://pith.craftnook.online/privacy Terms of use: https://pith.craftnook.online/terms

About

Atenium

Features
Read full description

Atenium is a grade tracker, study planner, flashcard app, handwriting notebook and Pomodoro timer in one calm app built for college and university life. AteniumVector: a plan that adapts to you AteniumVector brings courses, exams, deadlines, tasks, flashcard reviews and the time you really have into one study plan. It shows you what to work on today and, with Pro, plans up to two months ahead, refining its estimates on your actual study sessions. Planning runs on your device. Flashcards and spaced repetition • FSRS scheduling with parameters optimized on your own reviews • Generate flashcards from notes, images and PDFs • Cloze deletion, image occlusion, audio, formulas, code and exercise cards • Import and export APKG, plus CSV and JSON • Per-deck presets, learning steps, flags and subdecks • Search with tags, filters and saved searches • Last round: a dedicated mode for the 48 hours before an exam • Review from your Apple Watch Notebook and handwriting • Write and draw with Apple Pencil on lined, grid, dotted and planner pages • Turn handwriting into typed text and handwritten formulas into LaTeX • Hold the pen to snap perfect shapes; ruler, set squares, protractor and compass included • Templates, stickers and icon libraries, from anatomy to law • Annotate PDFs and keep flashcards linked to their source page • Back up notebooks to iCloud, Google Drive, Dropbox or OneDrive Concept maps Build maps from your notes, link nodes to decks, see your mastery on the map and present it as slides. Grades, courses and academic progress Track courses, exams, attempts, partial exams, credits, weighted averages, GPA where applicable, your projected final grade and your university's graduation rules. Atenium supports different academic systems, as well as complex paths such as double degrees, Erasmus and study abroad. Simulate future grades and see their effect on your average and final result without touching your real record. Plan exams, classes and your thesis • Timetable for classes, exams, deadlines and attendance • A daily plan that recalculates when your workload changes • Course syllabus, prerequisites, materials and textbooks found by ISBN • Thesis workspace with stages, deadlines, Focus sessions, advisor meetings and defense practice • Flexible availability for students who also work Lectures, materials and on-device AI Record lectures, add markers, transcribe them when your device and language allow, search transcripts and turn them into structured notes and question drafts. Read and annotate PDFs, extract text with OCR and ask questions across your own library. AI features run on your device, at no cost, on iPhone and iPad models that support them. Focus, alone or together Pomodoro, Live Activities, Dynamic Island and Study Garden. Study with friends over SharePlay: a shared timer, quizzing each other in turns, passing a deck around. With Pro, block distracting apps while you study. Atenium counts rest days and reminds you that studying well does not mean studying all the time. Made to be readable Study aids to switch on by need: guided reading, typo-tolerant answers, extra time. VoiceOver and Dynamic Type supported. Instructor mode AteniumProfessor is a separate space for people who teach and do research: courses, classes, grading, rubrics, office hours, supervised theses, papers and projects, kept apart from your student environment. Privacy first Atenium is local-first. Study offline, sync supported data to your private iCloud and keep intelligent features on your device. No ads. No tracking. Atenium Pro expands the Free plan limits and unlocks extended planning, advanced analytics, simulations, international mobility tools, Atenium Web in any browser and more. Atenium Complete also includes AteniumProfessor. Terms of Use: https://atenium.app/en/terms Privacy: https://atenium.app/en/privacy

Screenshots

Pith4 screens
Atenium4 screens

Verdict

The call

The clearest difference is update cadence: Atenium at every 8 days against Pith's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Pith sells 1 one-off in-app purchase and Atenium sells 5 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Pith ships an update every 3 months, Atenium every 8 days. Both last shipped on October 31, 2026.

Scorecard1 real difference Ā· 5 level
Pith versus Atenium: the parameters behind the verdict, then further details
ParameterPithAtenium
PriceFreeFree
Update frequencyEvery 3 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS18.018.0
Further details — not scored
Size3 MB118 MB
Age rating4+4+
DeveloperClaudiu Valentin SararuPatrick Perazzini

In-app purchases

1 purchases

Pith

One-time1
  • Pith Pro$5.99
5 purchases

Atenium

Subscriptions4
  • Atenium Pro (1 Month)$3.991 Month
  • Atenium Complete - Mensual$6.991 Month
  • Atenium Pro (1 Year)7 Days trial$24.991 Year
Show 1 more
  • Atenium Complete - Annual7 Days trial$49.991 Year
One-time1
  • Atenium Pro Lifetime$89.99

Questions

Is Pith free?
Pith is free to download, with in-app purchases available.
Is Atenium free?
Atenium is free to download, with in-app purchases available.
Do Pith or Atenium have ads?
Neither Pith nor Atenium shows ads.
Which is updated more often, Pith or Atenium?
Pith ships an update every 3 months, and Atenium every 8 days. Most recently, Pith was updated on October 31, 2026 and Atenium on October 31, 2026.

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