# Calc-01

> Calc-01 (iPhone/iPad app by Lee Ann Rucker.)

- Source: https://appshunter.io/ios/app/calc/id1278688668 (this page in markdown: same URL + `.md`)
- Developer: [Lee Ann Rucker](https://appshunter.io/developer/1170393976)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 22 MB
- Languages: English
- Released: 2017-09-22
- Data updated: 2025-01-09
- User reviews in markdown: https://appshunter.io/ios/app/calc/id1278688668/reviews.md

## What is Calc?

A calculator inspired by the classic HP-01 calculator watch: 

• Performs calculations on four datatypes: numeric, elapsed time, time of day, and date.
• Find the day of the week, add or subtract days from a calendar date.
• Compute percentage, swap inputs, convert an elapsed time to and from decimal time.
• Store any type of value in persistent memory.

The Watch app provides a subset of these features:

• Calculations on all datatypes.
• Percentage and memory storage.


## Version history (last 3 releases)

### 1.0.2 — 2021-02-22

Updated for new watch size

### 1.0.1 — 2017-12-28

Minor bug fixes:
Display did not update to reflect changes to the operation.
Subtracting two dates was not rounded off to an integer.

### 1.0 — 2017-09-22

No release notes.

## Apps similar to Calc

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [IP Home Camera CCTV Viewer](https://appshunter.io/ios/app/ip-home-camera-cctv-viewer/id1459103519) | 3.4 (5) | Free | Productivity |
| [Collections Database](https://appshunter.io/ios/app/collections-database/id1568395334) | 4.6 (178) | Free | Productivity |
| [Birch - Organized Photo Notes](https://appshunter.io/ios/app/birch/id1435221449) | 4.7 (124) | Free | Productivity |
| [RPN-70 SD](https://appshunter.io/ios/app/rpn/id738422213) | 4.7 (11) | Free | Productivity |
| [WP 34s](https://appshunter.io/ios/app/wp-34s/id620255094) | 4.7 (28) | Free | Productivity |
| [ColorfulCalcu](https://appshunter.io/ios/app/colorfulcalcu/id1480472113) | 5.0 (1) | Free | Productivity |

## More apps by Lee Ann Rucker

- [XTide](https://appshunter.io/ios/app/xtide/id1191127595)

All apps by Lee Ann Rucker: https://appshunter.io/developer/1170393976

---

*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 2025-01-09.*