Runs on your device · nothing is uploaded

Say it any way. Send it short.

TersaAi turns voice, typing, pastes, photos, scans and files into a short, precise prompt for any AI. It runs fully on your iPhone, iPad or Mac and shows exactly how many tokens it saved.

Coming soon for iPhone, iPad and Mac

Up to 85% fewer tokens on long, messy input. Savings depend on what you paste. Long logs, email threads and reports shrink the most. Text that is already tight stays about the same, and TersaAi tells you so. Every result shows its real token count and how many details it kept.

Savings were measured on English text. Other languages are handled by rules alone and may save little.

A real Standard engine result on a sample email thread. Yours will differ.
Your input374 tokens
374 → 170tokens, before → after
16 of 16 key factsnothing uploaded
Distilled promptChatGPT · Balanced
## Goal
Write a reply to Tom Reilly for me.

## Context
- Subject: Heating at 14 Harbour Street
- Tom Reilly (Wednesday, October 28, 2026 4:12 PM): The engineer can only come on November 9, and the replacement part costs $1,850.
- Priya Shah (Monday, October 26, 2026 9:40 AM): The heating in our office at 14 Harbour Street has been broken since October 14. We called twice and nobody came. Our lease says repairs happen within 5 working days, so we would like a rent reduction of 10% for every week it stays broken.

## Constraints
- Don't threaten to leave, we want to stay.

## Output
Keep it under 120 words and make it polite but firm.

Why TersaAi

Nothing leaves your device

Runs on your device. Nothing you paste is sent anywhere by TersaAi. No servers, no account, no analytics. History stays on your device, encrypted and left out of backups.

Proof on every result

TersaAi checks that names, numbers, dates and file paths survive. Anything it drops is listed, so you can put it back.

Anything in, one prompt out

Speak, type, paste, scan a page, pick photos or import PDFs, documents and code. Combine them into one distill.

How it works

01

Add anything

Voice, text, photos, scans or files. The token count updates as you go.

02

Pick your AI

Claude, ChatGPT, Gemini, a coding agent like Cursor or Claude Code, or any other. Choose Light, Balanced or Max.

03

Distill

Noise goes: quoted replies, signatures, log spam, filler. TersaAi checks that names, numbers, dates and file paths survive.

04

Copy or open

Copy the prompt or open it in your AI app. Nothing is sent until you choose.

Smart and Standard

On supported devices, in English, Apple's on-device AI helps trim your text (Smart mode). Standard mode works on any supported device, using rules alone.

One price. No subscription.

$2.99

Free download with 3 free distills. Then TersaAi Pro for $2.99, once. One purchase covers iPhone, iPad and Mac, and works with Family Sharing.

US price. Local prices vary by App Store region.

Try it now, free, in your browser

TersaAi Lite runs the rule-based Standard engine on the page itself. What you paste never leaves your browser.

Try Lite in your browser