“There's one thing I particularly like about your app that no other app seems to focus on: that you have a target date when the knowledge will be needed.”
V2.2 Plan for every exam you have
You studied it. Now keep it.
Re:Call tells you exactly what to revise and when, right before you'd forget it, so this week's chapters are still there on exam day.
Noticed by
“Congratulations on building Re:Call. Building a working app in a day while preparing for board exams is impressive.”
“We appreciate your initiative and the effort you have put into developing an app to help students… We wish you all the best for your board examinations and future projects!”
Sharing Re:Call with their team for review.
Replied personally to Ishan and plans to take a look at Re:Call.
Appreciated Ishan's effort and forwarded Re:Call to their team for review.
Thanked Ishan for sharing Re:Call and wished him the very best.
Forwarded Re:Call to their team for consideration.
Revise in 1 hourPhysics · Wave Optics
Remembered now93%
Days until the exam101
The problem
“I'll revise it all on Sunday.”
Every student has said it. Here's what that week actually looks like, and what it looks like with Re:Call.
01Monday's topic is already gone
By Sunday you aren't revising it. You're learning it again from scratch.
02One evening isn't enough
Six days of new material won't fit into one night, so some of it gets skipped.
03Next week is worse
Two weeks of backlog, then three. Old topics quietly drop off and never come back.
Revision isn't one day a week. It's a cycle, at the right gap, for every topic. That's the job Re:Call does for you.
How it works
Three steps. Five minutes a day.
No flashcards to make. You revise from your own books and notes. Re:Call just tells you which pages, and when.
Add what you studied
Subject, chapter, the pages you covered. Ten seconds after each study session.
Add a topic01→
Get reminded at the right time
An hour later, then right before you'd forget. Plus a short list every morning.
Smart reminders02→
Revise, then tap how it went
Again, Hard, Good or Easy. Hard topics come back sooner, easy ones later.
Rate & adapt03→
Try it here
This is your whole morning.
Tap ✓ when you've revised a topic, then say how it went. Re:Call picks the next date. Works with the keyboard too, just like the app.
Today
0 of 3 done
Start with the first one: tap the green ✓.
Again forgot it, back in 1 hourHard short gapGood normal gapEasy long gap✗ not today
Why it works
Built on how memory actually works
Not a timer. A real memory model, the same one behind modern Anki, bent to fit your exam dates.
Same four revisions. Very different result.
Days you'd remember it30 / 30
Recall on day 30–
Illustration with a simple forgetting curve. The real model, explained →
Every topic in its place
Add topics as you go. Re:Call tracks each one, and your syllabus fills itself in.
Wave OpticsSolutionsMatricesHaloalkanesCapstone ProjectVectorsThe Last LessonProbabilityElectrostaticsBiomoleculesOhm's lawIntegralsYoga
Add your exams. Gaps shrink to fit.
SAT in December, IELTS in January, boards in February? Add them all. Each subject plans for its own next exam and gets a final revision in the last days before it. Pick how hard Re:Call pushes you.
💪
Focused
target recall
max gap (share of days left)
final sweep
max revisions a day
Inside the app
Six screens. Each with one job.
Scroll through the real app, filled with sample data.
01 · TODAY
Your whole morning on one screen
The revision list, overdue topics first, and the study-time check-in. Tick, rate, done in about five minutes.
✓ / ✗ per topicUndo for 8 sKeyboard review
02 · ALL TOPICS
How well you remember everything
Every topic by subject, with a live "% remembered now" and when it comes back. Search it, or filter to trouble topics.
Live recall %Forgetting curve per topic
03 · SYLLABUS
Know exactly what's left
Every chapter, what's covered, and whether you're on pace to finish before the final sweep. One click adds the CBSE Class 12 syllabus.
79 CBSE chaptersOn track / Behind
04 · STATS
A countdown that glows
Days left to each exam, and one tile per day that shines brighter the more you studied. Streaks and charts underneath.
Daily goal & streakHours per day
05 · WEEKLY REPORT
Sunday evening, a quick look back
This week vs. last: hours, revisions, % remembered, your best subject and the one that needs work.
Arrives Sun 7 pmBrowse past weeks
06 · SETTINGS
Tune it to how hard you want to go
From 😌 Chill to 💀 Brutal, your exams, daily goal and quiet hours. Every extra has an off switch.
5 intensitiesFeature switches
Re:Call remembers what you studied, so your time goes into learning what's next.
1day
From idea to packaged app. Built on 31 October 2026, for my own Class 12 board exams.
79chapters
The full CBSE Class 12 (2026–27) syllabus, one click away in the Syllabus tracker.
201tests
Automated tests check the scheduling engine, on Mac and on Windows.
100% offline
No account, no cloud, no ads. Your data never leaves your computer.
Made by a student
I kept forgetting what I studied. So I built this.
“
Topics I learned in September were gone by November. "I'll revise it all on Sunday" never worked, and the backlog only grew.
Ishan Pratap Singh · Class 12
So on 31 October 2026 I built the app I wished I had, from idea to packaged app in one day, for my own board exams.
P.S. My lucky number is 7. Try clicking things 7 times, on this page too.
Questions, ideas or bugs?
Message me on Instagram. Tell me what works, what doesn't, and what you'd like next.
Message @ishan.sgh
Questions
Good to know
No. Re:Call works fully offline and has no accounts. Your data stays on your computer, with a backup every day.
Macs with Apple silicon (M1 or newer) on macOS 14 or later, and Windows 10 or 11 (64-bit). Intel Macs aren't supported yet.
Re:Call isn't signed by Apple or Microsoft, which is common for apps made by one person. Your computer asks you to confirm once. The download page shows exactly what to click.
No. There are no cards to make. Re:Call tells you which pages to revise and when; you revise from your own book or notes, then rate how it went.
Keep it running: turn on Settings → General → Open at login. It sits quietly in the menu bar (Mac) or system tray (Windows).
Yes. Export a backup on one and import it on the other. It's the same app with the same file format both ways.
More answers in the User Guide.
Revise right before you forget.
Install takes about a minute. No account, no internet needed.
FOR YOUR MACDownload for MacApple silicon · macOS 14 or newer
FOR YOUR PCDownload for WindowsWindows 10 & 11 · 64-bit
Questions first? Message me on Instagram.
