Board exams in Delhi, WAEC in Lagos, the Egyptian Thanaweya Amma, a first-year anatomy module in Manchester: the study problem is the same everywhere. Notes pile up in photos and PDFs, revision starts too late, and the good techniques (spaced repetition, self-testing) never happen because making flashcards takes longer than reading the chapter. Students want an app that takes what they already have and turns it into something they can drill on the bus.
The generic study apps sell exactly that, but with someone else's subjects, someone else's pricing and a paywall on the AI features. Describing your own study helper to App Builder Agent gives you an app with your subjects, your exam dates and the exact card and quiz formats you like, built as a real React Native app that calls the AI backend included with the project. This guide covers what the app needs, a prompt that produces a working version in one go, and the mistakes that make AI-generated study material useless.
What an AI study helper app must handle
- Subject folders — Physics, Chemistry, Biology, each with topics inside, colours and an exam date.
- Note input — paste text, pick a PDF or photograph a page; a review step to correct extracted text.
- Summaries — a short version (five bullets) and a long version (a page), both saved with the source note.
- Flashcards — question on the front, answer on the back, generated by the AI and editable by the student.
- Spaced review — cards come back after 1, 3, 7 and 14 days depending on whether you got them right.
- Quiz generation — multiple choice and short answer from a topic, with explanations after each question.
- Progress — cards mastered per subject, quiz scores over time, a streak.
- Offline review — everything generated is stored on the device and works without a connection.
Build it with App Builder Agent, step by step
Name your subjects and your exam, and describe the card and quiz formats precisely; the agent writes the instructions the AI follows from your description.
- Create a mobile app project. Studying happens on the phone. The browser preview is fine for building, and the image picker works there for testing photo notes.
- Describe the subjects, inputs and formats. This prompt is a good base for a school or college student:Build an AI study helper app called "Padhai Buddy" for a Class 12 CBSE student in Delhi. Subjects: Physics, Chemistry, Mathematics, Biology, each a folder with colour and exam date, topics inside. Add a note by pasting text, picking a PDF or photographing a page, then a review screen to fix the text. For any note: a 5-bullet summary and a one-page summary, 15 flashcards (question/answer, editable), and a 10-question quiz (multiple choice with 4 options and a one-line explanation). Spaced review: cards return after 1, 3, 7, 14 days based on Got it / Again. Progress screen: cards mastered per subject, quiz scores line, daily streak, days until each exam. Store everything on the device. Uses the app's AI backend. Indigo and warm white design, Hindi and English UI toggle.
- Feed it a real chapter. Paste two pages of your own notes in the preview and generate. Read the flashcards critically: are answers short, are questions specific? Report anything vague and the agent tightens the AI instructions.
- Add the pieces that keep you studying. A daily plan and reminders make the difference between an app and a habit:Add a Today screen: 20 due cards across subjects, one 5-question mini quiz from the weakest topic, and a "study plan" that spreads all topics across the days left before each exam date. Send a notification at 7 pm if today's cards aren't done. Let me export a subject's flashcards as a PDF to print and share with friends via the share sheet.
- Install and revise. Download the release-signed test APK from the Preview tab, install it, and start with one subject; add the rest once the card format suits you.
Prompts that work well
Different exams need different formats. Say the format and the AI produces material that matches:
Common mistakes (and the fix)
- Generating cards from a whole textbook chapter at once. The AI produces 15 shallow cards for 30 pages. Fix: ask the app to split long notes into topics of roughly 500 words and generate per topic.
- Trusting extracted text from blurry photos. Wrong formulas become wrong flashcards. Fix: keep the review screen and ask for a "re-take photo" option.
- Multiple-choice options that are obviously wrong. Quizzes become trivial. Fix: tell the agent the wrong options must be plausible and from the same topic, and include a one-line explanation of why the right answer is right.
- No editing of generated cards. A bad card stays bad. Fix: ask for edit and delete on every card, and a "regenerate this card" button.
- Review order that ignores results. Every card comes back every day and the deck grows to 800. Fix: state the spacing rule in the prompt (1, 3, 7, 14 days) so cards you know disappear for a while.
- Unlimited generation with no feedback. Long notes take time to process and the screen looks frozen. Fix: ask for a progress indicator with "summarising", "writing cards" and "building quiz" steps.
Make it feel finished
- Swipe gestures on flashcards: right for Got it, left for Again, tap to flip, with a small flip animation.
- An exam countdown on each subject folder and on the Today screen.
- Dark mode that follows the phone setting, since much revision happens at night.
- Read aloud for summaries and cards, so a chapter can be revised while walking.
- A share card image of the day's streak and cards mastered, for the class WhatsApp group.
Installing, publishing and next steps
Once summaries, cards and quizzes come out well for one chapter in the preview, download the release-signed test APK from the Preview tab and use the app for a full week of revision on your phone; the review timing is the thing you can only judge over days. If your classmates want it, the AI app builder makes a signed APK and AAB with your own package id and version for the Play Store, and the keystore stays with the project so updates are simple.
Browse the ready-made AI assistant apps for other ways people have used the AI backend. Two neighbouring guides are worth reading next: how to build a quiz app without coding, if you want a standalone quiz with a leaderboard, and building a language learning app without coding, which uses the same flashcard and spaced-review ideas for vocabulary. Open the builder and paste the prompt above with your own subjects and exam dates.
Frequently asked
How does the app generate summaries and quizzes?
Through the AI backend that comes with your project. The app sends the note text to the AI with instructions the agent wrote, gets back a summary, flashcards or questions, and saves them in the subject folder. You do not need to set up an AI account or paste keys.
Can it read PDFs or photos of notes?
The app can pick images and files, and you can ask for text extraction from photos of handwritten or printed notes. Results depend on photo quality, so the guide suggests a review step where the student fixes the extracted text before generating cards.
Does it work offline?
Everything already generated is stored on the device by default, so summaries, flashcards and quizzes can be reviewed offline. Generating new material needs a connection to reach the AI. If several students share one account, ask for a hosted backend instead.
Is it free to build?
Signing in and building the first app is free, with a live phone preview in the browser. Editing further with the agent, unlimited APK builds, signed store builds and source export are paid; a one-time $1 membership covers test APKs and export, with no subscription.
Can I put it on the Play Store?
Yes. Make a signed APK and AAB with your own package id and version from the builder; the keystore is kept with the project for updates. Test builds come as a release-signed APK from the Preview tab. There are no iOS builds.
Build it now — free to start
Type the idea, sign in, and the agent builds it in your browser. Change anything by describing it.
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