Frequently asked questions: revising, teaching, account and data

Question 1

What is spaced repetition, and why does it work?

Accepted Answer

It means revising a piece of information just before the moment your brain sorts it out: every spaced recall strengthens the memory trace and flattens the forgetting curve. Memojin uses FSRS, the most refined algorithm in the field: for the same retention, 20 to 30% fewer reviews than a conventional schedule.

Question 2

I'm coming from Anki — can I bring my decks over?

Accepted Answer

Yes: .apkg import is available. Your Anki decks arrive in Memojin with your cards, and you gain FSRS, marked quizzes, exam mode and shared spaces.

Question 3

Is Memojin a good alternative to Anki?

Accepted Answer

Anki is powerful but requires you to write every card by hand and configure the algorithm yourself. Memojin generates cards from your own courses (PDFs, photos, YouTube), applies spaced repetition automatically, and adds marked quizzes, an exam preparation plan and revision with friends — all with a free tier.

Question 4

How do I create revision sheets with AI?

Accepted Answer

Import your material (PDF, slide deck, photo of your notes, YouTube video or pasted text). Jin, Memojin's AI, pulls out a structured lesson, a printable summary sheet, memo cards and a quiz — in about thirty seconds. You can then edit or extend any of it by hand.

Question 5

How do I prepare for an exam with Memojin?

Accepted Answer

Give the date and the content involved: FSRS measures your active memory on that content, the gauge climbs as you revise and tells you when you're ready. A timed mock exam puts you in real conditions before the big day.

Question 6

Is Memojin free?

Accepted Answer

Yes: the Start plan includes a monthly AI allowance — cards, imports, summaries and conversations with Jin all draw on it — plus spaced repetition revision, which uses no AI at all. Paid plans raise the AI volume and unlock full exam mode.

Question 7

Which content formats can I import?

Accepted Answer

PDFs, images and photos of handwritten notes, slide decks, pasted text, YouTube videos and Anki decks (.apkg). Mathematical formulas are supported through LaTeX — handy in medicine, law, science and preparatory courses.

Question 8

Does Memojin work on a phone?

Accepted Answer

Yes: one account, two surfaces. You start a session on your laptop and it resumes on your phone right where you stopped — a quick quiz on the bus, your cards while walking, a full session before the exam.

Question 9

Which teaching plan should I choose?

Accepted Answer

• Mentor — for a tutor or a coach: a few students included, an individual follow-up for each of them, content shared student by student, chat per space.
• Pro — for a teacher or a training centre: more students and Jin's recommendations on each student.
• Campus — for a large teaching team: groups and group follow-up, the highest number of students and the largest volume of AI.

On Mentor and Pro, a student is not filed inside a space: you reach them from their page and share content with them directly. Work groups — and supervised spaces holding several students — are reserved for Campus and institutions. The number of students included and the volume of AI of each plan are on the pricing page, always up to date.

Question 10

How do seats work?

Accepted Answer

Each teaching plan includes a number of seats. A seat is taken as soon as a student has access to your spaces — and a pending invitation reserves one too.

The counter sits in the header of My students: seats taken out of the total, with the detail — students, pending invitations, free seats. An expired (30 days), cancelled or declined invitation frees its seat; removing a student frees it as well.

Seats are not sold individually: when they are all taken, cancel an invitation, remove a student, or change your plan.

Removing access removes the student from all your spaces — the screen reminds you before confirming.

Question 11

How do I invite a student?

Accepted Answer

From My students → Invite (by email, or by importing a list), or from a space. Three methods:

• by email — the student receives an invitation, whether or not they already have an account;
• by code — they enter your invitation code;
• from your friends — for those already on Memojin.

Right from the invitation you can set the group and the space they will join on acceptance.

An invitation to a group is accepted or declined from the student's My spaces, on the web and in the app.

An invitation can be resent, with a few minutes between two sends to avoid unintended pestering.

Question 12

How do I invite a whole class at once?

Accepted Answer

My students → Import a list. Three steps:

1. Paste your addresses (or lines of « First LAST email »), or drop a CSV or .xlsx file. A CSV template is downloadable. Only the email, first name and last name are read; any other column is ignored.
2. Check: each line is marked ready, will be resent, duplicate or invalid email. If the list exceeds the remaining seats, Memojin says so as soon as it is read, with the exact shortfall, and offers to import only the first lines or to free up seats. A line whose email is unknown but whose first and last name match a student already present is flagged as a namesake: it is only sent if you tick “this really is a new person” — nothing is ever merged on your behalf. You choose the arrival group and space.
3. Send: a report shows who was invited, resent, or refused, with the reason.

Imported first and last names are only used to track invitations: they are erased as soon as the student accepts. A declined or cancelled invitation is kept, with its status.

Question 13

What does Memojin measure on a supervised space?

Accepted Answer

Two places, one perimeter — this space's cards:

• the Pilotage tab situates the class: review rhythm, distribution of states (ahead, on track, behind, not started), predicted memory, what blocks, dropouts, the D-day of deadlines;
• the Students tab situates each person, on a card: 14-day attendance, progress (share of consolidated cards), predicted memory at 30 days, notions to review, state.

A class average stays an average: two students at 50% can have opposite profiles — hence the distribution, and the named cards. A missing measure reads “—”, never 0: what was never seen cannot be predicted.

Question 14

How do I know who is dropping off?

Accepted Answer

The To follow up section of Steering lists those who never started and those inactive for a while, with the number of days.

If statistics sharing is off in the space's settings, that list cannot be shown — and the screen says so explicitly: it isn't that nobody is dropping off, it's that you cannot see it.

Question 15

Which alerts does Jin raise?

Accepted Answer

Five families:

• Trap card — a card with an abnormal failure rate;
• Silent dropout — a student inactive for too long;
• Low engagement — the group's participation collapses;
• Speed anomaly — answers too fast to be considered;
• Struggling student — results falling away.

Active alerts are shown with the weekly report. When there are none, the screen says so: all is well.

Question 16

Can I tell whether my class will be ready on the day?

Accepted Answer

The deadline shows the group's progress and memory — the share of the syllabus the class will know on the day, averaged over the members, absent under 3 members — along with the distribution of students — ahead, on track, behind, not started.

On the student side, each one has their own exam-day prediction. Remind them of what the screen already says: it is not a grade, it is the share of their cards they should still remember that day, a card never seen counting as zero.

After the sitting, entering the real result feeds the reliability history and shows whether the model over- or underestimates.

Question 17

Why is there no student ranking anymore?

Accepted Answer

Because the teacher dashboard never puts students in competition: a “top 5” does not say what to do, and it penalises those who need help most.

Instead, every aggregate unfolds into names where an action is useful — students behind, those who have not opened a content, those whose predicted memory — the share of the syllabus they will know, a card never opened counting as zero — is under 60 % before a deadline.

Question 18

What does the Schools & Institutions plan offer?

Accepted Answer

A bespoke offer for an institution: unlimited students, several teachers and several administrators, pooled AI quota, custom exports and reports, and LMS, SSO and API integrations.

It isn't subscribed to online: the quote is built with you. The « Contact us » button on the pricing page opens the conversation.

Question 19

Monthly or yearly: what's the difference?

Accepted Answer

None on features. Only the payment changes: every month, or once with a discount.

You can switch from one to the other from your subscription management.

Question 20

How does the trial period work?

Accepted Answer

The trial gives access to every feature, with a deliberately limited AI quota, and no card required.

At the end nothing is deleted: your account moves to the free Start plan. Your content, cards and progress stay in place; only the features of the higher plans close.

Question 21

How do I change plan?

Accepted Answer

From My profile → Manage my subscription, or from the pricing page.

• Moving up takes effect immediately, with an amount prorated to the time remaining.
• Moving down takes effect at the end of the current period: you keep what you paid for until the end.

A scheduled change can be cancelled as long as it has not taken effect.

Question 22

How do I cancel my subscription?

Accepted Answer

From Manage my subscription → Cancel subscription. It stays active until the end of the period already paid for, then your account returns to the free Start plan.

Nothing is erased: your content, cards and progress stay available.

If you subscribed from the mobile app, cancellation is done in the App Store or Play Store settings.

Question 23

How does the AI quota work?

Accepted Answer

Every plan includes a monthly volume of AI, shown as a single gauge in My profile: a percentage remaining, and its renewal date. The same gauge shows at a glance as a ring around your photo in the menu: it empties as you use your quota.

The quota renews automatically each billing period. What isn't used doesn't carry over to the next month.

Memojin announces the estimated cost before each expensive action: a coloured badge shows the share of the month it will take — “4%”, or “<1%” when it is negligible. Hover it (tap it on mobile) to read the details. Memojin also warns you when the current pace will exhaust the gauge before renewal.

Question 24

What consumes AI quota?

Accepted Answer

The actions where a model works for you:

• reading a document (counted per page);
• generating a lesson with AI;
• summarising a lesson;
• generating memo cards and questions;
• exchanges with Jin, and voice conversation by the minute;
• redrawing a figure (Make it legible), the most expensive action per use — done automatically on import for labelled maps and diagrams (six at most per content);
• reading the names on a figure (Create cards from this figure), once per figure;
• translating a lesson imported in another language, in proportion to its length;
• marking an open answer by AI.

Making a podcast is in beta: it is not deducted.

Reviewing, training, creating cards by hand, organising your content and your spaces cost nothing.

Question 25

What happens when my AI quota runs out?

Accepted Answer

Actions that call the AI are paused until renewal, whose date is shown to you. Everything else carries on:

• reviewing and training on all you already have;
• creating and editing cards and questions by hand;
• writing your lessons yourself;
• using spaces, deadlines, the agenda, podcasts already made.

If you regularly need more volume, the pricing page compares the plans.

Question 26

Is my content used to train AI models?

Accepted Answer

No. Your content is used to answer you: generate your cards, your summaries, feed Jin's answers about your material.

Jin's searches through your content are partitioned per user: it cannot read anyone else's, unless it is shared in a space you belong to.

The detail of the processing is in the privacy policy, reachable from the user menu.

Question 27

Where is my data hosted?

Accepted Answer

In Europe. The privacy policy details the processing, retention periods and your rights.

Your content belongs to you: it is not resold, and it is not used to train models. It is visible to other people only if you share it yourself in a space.

Question 28

Can I get all my data back?

Accepted Answer

Yes. Settings → Privacy → Export my data produces a JSON file containing your profile, documents, lessons, memo cards, learning history, statistics and subscriptions.

This is the right to data portability under Article 20 of the GDPR. The export is available at any time, with no justification needed.

Question 29

How do I delete my account?

Accepted Answer

My profile → Deletion → Delete my account, with a confirmation to type.

The account is deactivated immediately, then permanently deleted after 30 days. During that window you can sign in again and reactivate it, with all your data.

Once the window has passed, everything goes: documents, content, cards, learning history, remaining quota, and the subscription is cancelled. If you own supervised spaces, the screen tells you what will happen to them before you confirm.

Question 30

Is there a minimum age to use Memojin?

Accepted Answer

Yes, 13. Between 13 and 16, the consent of a parent or legal guardian is required, in accordance with article 8 of the GDPR: Memojin asks for it explicitly at sign-up.

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