# dapter: Notes That Do Math

> Notepad calculator, offline

Canonical page: [https://chrome-stats.com/d/id6786665448](https://chrome-stats.com/d/id6786665448)

## Overview

- **ID:** `id6786665448`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Anuar Shaidenov
- **Category:** Productivity
- **Version:** 1.7.0
- **Last updated:** 2026-09-10
- **First published:** 2026-07-11
- **Size:** 65 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/dapter-notes-that-do-math/id6786665448)
- **Website:** [https://dapter.shystud.io/](https://dapter.shystud.io/)
- **Privacy policy:** [https://dapter.shystud.io/privacy/](https://dapter.shystud.io/privacy/)

## Description

Write 200 usd in eur on any line and watch it resolve. A notes app with a real
calculation engine inside. No account, nothing to sign up for.

Apple Notes, if it could do math.

Type rate = 45 on one line and rate × hours on the next, and the answer appears in
the margin as you type. Every line that looks like a calculation resolves instantly.
Everything else stays prose.

No account. No servers of ours. Nothing to sign up for.

WRITE MATH LIKE A SENTENCE
• 20% of 300, 200 - 10% — percentages, markups and discounts the way you'd say them
• 100 usd in eur, $50 + 20% — live currency rates, formatted as money
• 10 km + 5 m in miles, 6 m / 2 s → 3 m/s — real unit algebra, not string replacement
• today + 21 days, 3 days + 12 hours — dates and durations that count themselves

A NOTE THAT ADDS ITSELF UP
• Name a value and reuse it: rate = 45, then rate × hours three lines later
• sum a block for budgets, receipts, invoices and quick tallies
• round, sqrt, pi and the rest, for when a note needs to be a little smarter

STILL A REAL NOTES APP
Folders, pinned notes, search, a home-screen widget, Recently Deleted, and a quick
scratch pad one tap from anywhere. Light and dark themes. Available in English,
Russian and Kazakh — and the calculator understands all three, because the parser
does, not just the interface.

PRIVATE BECAUSE OF HOW IT'S BUILT
Every calculation runs on your device. Your notes live in local storage on your
iPhone, not in an account with us. All the math, unit conversion and currency work
is free, forever — there is no calculation behind the paywall.

BUILT FOR
Freelance quotes and invoices. Monthly budgets. Travel money. Recipe scaling. Any
moment you'd reach for a calculator and then forget what the numbers were for.

DÄPTER PLUS
Unlimited notebooks, and iCloud sync across your iPhones through your own Apple
account. Monthly, yearly, or a one-time lifetime unlock — pay once and you're done.
Plus is what keeps däpter independent: no ads, no investors, no data sold.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Rankings

- #1,367,738 — Overall

## Similar extensions and apps

- [TextCalc: Sketch & Calculate](https://chrome-stats.com/d/id6773198374)
- [NoteCalc - Notepad Calculator](https://chrome-stats.com/d/id6737917127) — 5.00 / 5
- [CalcMate – Notes Calculator](https://chrome-stats.com/d/id6449422062) — 4.90 / 5
- [Jotsum: Calculator Notepad](https://chrome-stats.com/d/id6785305380)
- [Owlculator - Math Notes](https://chrome-stats.com/d/id6761601067) — 5.00 / 5
- [mathote](https://chrome-stats.com/d/id6760556856)
- [Keisan Memo — Calc Notepad](https://chrome-stats.com/d/id6791201696)
- [NoteCalcu: Note Calculator](https://chrome-stats.com/d/id6775677597)
- [Numy: Notepad Calculator](https://chrome-stats.com/d/id6756936386)
- [Easy Note Calc](https://chrome-stats.com/d/id6769940263)
- [NoteCalc: a Notepad Calculator](https://chrome-stats.com/d/id6746579465)
- [Plusm: Notepad Calculator](https://chrome-stats.com/d/id6760660267)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6786665448)