# Catena – Linked Calculator — Use results in new expressions

> Use results in new expressions (iPhone/iPad app by Toshiyuki Yamane.)

- Source: https://appshunter.io/ios/app/catena-linked-calculator/id6814348620 (this page in markdown: same URL + `.md`)
- Developer: [Toshiyuki Yamane](https://appshunter.io/developer/6814348622)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 27.0 · 6 MB
- Languages: American English, Japanese
- Released: 2026-09-22
- Data updated: 2026-10-13

## What is Catena?

Catena is a calculator that displays expressions and results together on screen. You can continue with new calculations while reviewing previous ones.

■ Drag and reuse calculation results
Touch and hold a calculation result, then drag it into another expression to reuse it. When you edit the original expression, linked results update automatically.

■ Edit expressions in place
You can edit previous expressions by tapping the part you want to change. Adjust numbers and recalculate without retyping the entire expression.

■ For everyday calculations
Catena supports addition, subtraction, multiplication, and division, as well as decimals, negative numbers, and parentheses. It also supports Light and Dark Mode.

■ No account required, no ads
No account is required. Catena has no ads and does not send your calculations to external servers.


## Version history (last 5 releases)

### 1.1.1 — 2026-10-09

Minor improvements and bug fixes.

### 1.1.0 — 2026-10-08

- Added landscape support on iPhone. The calculation area and keypad appear side by side, and you can swap their positions.

### 1.0.7 — 2026-10-06

Updated the descriptions in Settings to make them clearer.

### 1.0.6 — 2026-10-05

Updated the language settings for our App Store listing.
The app continues to support Japanese and English.

### 1.0.5 — 2026-10-04

- Added English language support.
- Updated some labels in the Japanese interface.

---

*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 2026-10-13.*