iPhone · AI conversion · Real LaTeX

Handwritten mathematics,
typeset by your iPhone.

Photograph a page of notes, a problem sheet, or a whiteboard. Ink2TeX reads the mathematics with AI and hands back a complete LaTeX document — one you can edit, compile to PDF, and open in Overleaf, without typing a single backslash.

✓ AI document conversion✓ Compiles a PDF offline✓ Overleaf hand-off
Ink2TeX app icon

Coming to the App Store

Ink2TeX is in development for iPhone. Join the early-access list and we will write to you once — when it is available to download.

Platform
iPhone
Requires
iOS 18 or later
Price
Free to download
How it works

From a photograph
to a document.

Four steps, no retyping. AI converts your page over the internet; editing and PDF compilation happen on your iPhone.

  1. Photograph the page

    Point the camera at a notebook page, a whiteboard, a problem sheet, or a textbook. The guided scanner checks focus, glare, and page edges before it accepts the shot, so the recognizer gets a page worth reading.

  2. AI reads your page

    Page images are sent through the Ink2TeX service to OpenAI for AI conversion. The result preserves headings, paragraphs, lists, equations, and tables as editable LaTeX.

  3. You get a real LaTeX document

    Sections, equation environments, itemized lists, and tabular blocks are assembled into a complete document with its preamble, not a loose string of symbols. Uncertain readings are marked for you rather than guessed at silently.

  4. Edit, compile, export

    Correct anything you like in the built-in LaTeX editor, compile it to a PDF on the phone, and send the .tex and .pdf anywhere — Files, Mail, Messages, or straight into an Overleaf project.

What it does

Built for the page
you actually wrote.

Scientific pages are not plain text. Ink2TeX is designed around the things that make them hard — layout, notation, and the symbols recognizers habitually confuse.

Handwriting and print

Lecture notes, worked solutions, exam papers, whiteboards, and printed textbook pages. Mathematics written by hand is what Ink2TeX is built for.

Equations as equations

Display formulas become equation environments, fractions stay fractions, and sub- and superscripts survive the trip. Matrices and cases keep their shape.

Structure, not soup

Titles, paragraphs, numbered and bulleted lists, tables, and underlines are detected as separate blocks, and you can correct any block's type before the document is built.

Subject dictionaries

Seven subject vocabularies sharpen recognition where it usually fails — ρ against p, ℓ against l, Σ against E — and rank alternatives instead of overwriting your page.

A LaTeX editor that helps

Syntax highlighting, full undo, and a plain-English error list built from the compiler log, with the line each problem came from.

A PDF, compiled on the phone

A real TeX engine ships inside the app, so your document is typeset on the device — with no server round trip and no TeX distribution to install.

Overleaf in one step

Send the finished source straight into a new Overleaf project when you want to keep working on a laptop, or share the .tex and .pdf through the usual iOS share sheet.

A library of your work

Every scan is saved on the device with its source and equations, searchable, renameable, and recoverable from Trash.

7 subjects

It knows what
you are writing about.

Choose a subject before you scan. Its vocabulary guides the recognizer and the correction engine, so notation is read as notation rather than as ordinary letters.

Mathematics

Limits, integrals, matrices, proofs, set and logic notation.

Physics

Vectors, units, constants, differential equations, field notation.

Chemistry

Reaction arrows, states of matter, organic and physical notation.

Biology

Genetics, molecular and biochemical vocabulary.

Computer science

Algorithms, complexity classes, logic, pseudocode blocks.

Engineering

Circuits, signals, materials and measurement notation.

Statistics

Estimators, distributions, expectation and variance notation.

Privacy

Privacy Policy
Ink2TeX

This policy explains how Inas Group handles information when you use Ink2TeX and this product page. It covers Sign in with Apple, AI conversion, purchases, temporary recovery, and your deletion choices.

Last updated: October 17, 2026

Contact: hello@inasgroup.net
Provider policies: Apple · Cloudflare · OpenAI · RevenueCat

01

Account informationInk2TeX is provided by Inas Group. Sign in with Apple creates or authenticates your account. We receive your Apple account identifier and, when Apple provides them, your name and email address. If you choose Hide My Email, we receive Apple's relay address instead of your personal email. We use this information to operate your account, protect access, and associate your page balance and purchases with you.

02

Images and AI conversionWhen you request a conversion, page images, relevant image crops, and processing instructions are sent securely to the Ink2TeX backend hosted on Cloudflare and to OpenAI's API to generate LaTeX. AI conversion requires an internet connection. Our backend does not maintain a permanent image library. Do not submit material you are not authorized to share with these services.

03

Documents and temporary recoveryYour document library, editing, and PDF compilation are handled on your device. Generated conversion responses may also be temporarily retained on our backend to recover interrupted requests, with a recovery window of up to 72 hours. Responses are removed after successful settlement or expiry cleanup. Exporting or sending a document to Overleaf shares it with the destination you choose.

04

Subscriptions and page balancesApple processes payments. We do not receive your payment card or bank account details. Our backend records transaction identifiers, subscription status, purchased products, and page credits to deliver purchases, restore access, and prevent duplicate grants. RevenueCat provides the paywall and subscription services and receives an app account identifier and purchase information through its SDK.

05

Service providers and securityWe use Cloudflare for hosting, account and transaction data, and service operations; Apple for authentication and payments; and OpenAI for AI processing. RevenueCat supports paywalls and subscription services. These providers may process data outside your country under their own privacy and security terms. We use HTTPS and account authentication to protect data in transit and access to your account. No system can guarantee absolute security.

06

Usage, retention, and AI data handlingWe retain account-linked conversion counts, page balances, transaction records, and operational metadata such as processing outcomes and token usage to operate the service, monitor reliability and costs, and prevent abuse. Account and purchase records are kept as needed to provide the service and meet applicable legal or fraud-prevention obligations. OpenAI API data is not used to train its models by default; its standard abuse-monitoring retention may still apply even when API response storage is disabled. We do not sell your personal data or use your document content for targeted advertising.

07

Your choices and account deletionYou can choose Apple's Hide My Email option, choose which pages to submit, and delete locally saved documents in the app. You can request account deletion from the account screen in Settings. Deletion removes profile information and revokes account sessions; limited records may remain where necessary for transaction integrity, security, fraud prevention, or legal obligations. Signing out does not delete your account. Deleting an account does not cancel an Apple subscription; manage or cancel subscriptions in your Apple account settings.

08

Contact and policy updatesFor questions, access, correction, or deletion requests, contact Inas Group at hello@inasgroup.net. If you join this website's early-access list, we use the email you provide to notify you about availability; you may ask us to remove it. We update this policy when our practices change and publish the revision date here. Last updated: October 17, 2026.

Before it ships

Walk through the app in your browser

Step through the whole flow on a prepared page — camera, recognition, the LaTeX document, the compiled PDF, the export — then tell us in three taps whether you would use it. The web prototype that converts arXiv papers to LaTeX is on the same page.

See how it works
Ink2TeX FAQ

Questions,
answered plainly.

What people ask before they scan their first page.

How do I convert handwritten math to LaTeX?

Photograph the page with Ink2TeX and request AI conversion over the internet. Review the generated LaTeX document, make corrections, compile a PDF on your iPhone, and export it.

Is there an iPhone app that turns handwriting into LaTeX?

Ink2TeX is exactly that: an iPhone app that scans handwritten or printed mathematics and produces a complete LaTeX document, with an editor and a PDF compiler built in.

Does Ink2TeX work offline?

AI conversion, sign-in, and purchase verification require an internet connection. You can edit saved LaTeX documents and compile PDFs on your iPhone; uncommon TeX packages may need an internet download.

Can I edit the LaTeX it produces?

Yes. The result opens in a LaTeX editor with syntax highlighting, undo, and a readable list of compiler errors, beside a live PDF preview. Nothing is locked.

Does it really compile a PDF on the phone?

Yes. A TeX engine and a set of standard packages are bundled with the app, so your document is typeset on the device rather than sent to a server to be built.

Can I open the result in Overleaf?

Yes. Ink2TeX hands the finished source to Overleaf as a new project in one step, and you can also share the .tex and .pdf files through the iOS share sheet.

Which subjects does it understand?

Ink2TeX ships with vocabularies for mathematics, physics, chemistry, biology, computer science, engineering, and statistics, plus shared rules for layout and transcription. You pick the subject before scanning and recognition is tuned to it.

Does it work with printed pages as well as handwriting?

Yes. Printed textbook pages, problem sheets, and slides are read the same way — handwriting is simply the harder case the app is designed around.

What happens to my pages and documents?

Images are sent to the Ink2TeX backend and OpenAI when you request AI conversion. Your library is stored on your device. Generated responses can be retained temporarily for interrupted-request recovery, with a window of up to 72 hours. See the Privacy Policy on this page for account information, providers, retention, and deletion choices.

What will Ink2TeX cost?

The app is free to download. AI conversions use your account page balance, including welcome pages, subscription allowances, and purchased extra page packs. Prices and plan details are shown in the app before purchase.

Ink2TeX app icon Early access

Be there on day one.

One email when Ink2TeX reaches the App Store. No newsletter, no sharing your address with anyone else, and you can ask us to remove it at any time.

iOS 18 or later · Free to download · In development — launching on the App Store