# Sumbrew — Notebook-style calculator

> Notebook-style calculator (iPhone/iPad app by hideaki suzuki.)

- Source: https://appshunter.io/ios/app/sumbrew/id6831139184 (this page in markdown: same URL + `.md`)
- Developer: [hideaki suzuki](https://appshunter.io/developer/1884482177)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China) and 5 more
- Released: 2026-11-10
- Data updated: 2026-11-13

## What is Sumbrew?

Sumbrew is a calculator that works like a paper notebook.

Every number you type becomes a line on a ruled tape, so you can see the whole calculation at a glance. Add labels like “Rent”, “Tip” or “Per person”, and next week you’ll still know what each number meant.

FEATURES
• Tape-style calculation: numbers and operators stack up line by line, and “=” adds a subtotal.
• Labels on every line: write down what each number is.
• Live links: drag a result onto a new calculation, and it updates whenever the original changes.
• Edit anything: tap a line above, change the number, and everything below is recalculated.
• Percentages that make sense: add a 15% tip or take 20% off, with the amount shown beside the line.
• Handy functions: √, x², 1/x, ±, π, log and powers, entered right after an operator just like on paper.
• Notebooks: keep as many sheets as you like (Pro).
• Export to CSV or Markdown and save to iCloud Drive or Files (Pro).
• Light and dark appearance, in 15 languages.

Made as a tool to reach for every day. No ads, no subscription, no account — your notes stay on your device.

FREE AND PRO
Sumbrew is free to use with one sheet. A one-time purchase unlocks unlimited sheets and export. Pay once, keep it forever.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Sumbrew Pro | $1.99 | one-time |


## Is Sumbrew safe?

Not enough ratings yet to assess Sumbrew.

## Is Sumbrew legit?

Sumbrew appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Sumbrew is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-11-10

No release notes.

## More apps by hideaki suzuki

- [Gamblocker – Gambling Blocker](https://appshunter.io/ios/app/gamblocker-gambling-blocker/id6760438787)
- [Ratio Calc - Aspect Ratio Tool](https://appshunter.io/ios/app/ratio-calc-aspect-ratio-tool/id6761300753)
- [Lustblock](https://appshunter.io/ios/app/lustblock/id6776431777)

All apps by hideaki suzuki: https://appshunter.io/developer/1884482177

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-13.*