PowerOne calculator

Name: PowerOne calculator
Rating: 4.6 (793 reviews)
Author: Crafty Weasel, LLC

By: Crafty Weasel, LLC

Finance, scientific, and more

Features & Capabilities

PowerOne Calculator is a versatile tool for finance, science, and everyday calculations. It combines templates that act like mini-spreadsheets with a powerful standard and RPN calculator (100+ functions), letting you perform complex tasks quickly and accurately. With hundreds of pre-built templates across finance, conversions, real estate, business, engineering, health, and more, you can start calculating right away and tailor results with your own templates.

Its cross-device availability means you can run PowerOne offline on iPhone, iPad, M1 Mac, or online at power.one, and easily share template results with teammates. Free access covers offline use, a large library of templates, and core calculator features; Premium unlocks 300+ templates, unlimited custom templates, built-in extensions, 12 themes, and sharing between subscribers. Subscriptions are billed through the App Store and can renew automatically unless canceled.

User Growth & Download Statistics

App Education Programming

By:

Crafty Weasel, LLC

Rating:

4.60

(793) 1 new ratings

Version:

6.4.6 Last updated: 2025-08-13

Version code:

877195671

Creation date:

2018-02-12

Compatible devices:

Size:

6.03MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 64,816 ▼ 25

Other rankings

#50 in spreadsheet tools keyword 21 ▲ 1

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Crafty Weasel, LLC

Apple Apps Store

https://apps.apple.com/us/app/powerone-calculator/id1141498515

Website:

http://power.one

User Reviews

PowerOne is praised as a powerful, feature-rich financial calculator with an extensive templates library and strong cross-device usability. However, the most frequent issues are a subscription-based model that locks basic features, changes from older versions (layout, history, templates), and various UI/bug problems. Overall, value depends on tolerance for ongoing payments versus a one-time license.

Pros

Powerful, versatile financial calculator with time-value-of-money tools and Excel-like capabilities.
Extensive, customizable templates library and programming features for a wide range of calculations.
Long-standing, highly regarded app with a reputation as the best financial calculator on iOS.
Responsive customer support that resolves issues and provides fixes.
Good cross-device usability on iPhone and iPad.

Cons

Subscription/paywall blocks basic use and requires ongoing payments for premium features.
Changes from older versions (layout, history display, and templates) reduce usability and familiarity.
UI/bugs in newer builds (overlays obscuring the calculator, instability, and navigation issues).
Some users lose access to previously purchased features or feel pushed toward subscription instead of a one-time buy.
Value concerns due to the cost of recurring fees versus one-time licensing.

Recent reviews

I’ve had the earlier version of this on my iPad for years. I’ve written dozens of templates for custom applications I used in the office. I was aware that they were no longer supporting it, but when I had to restore my iPad, it couldn’t download the app because they took it off the server. That’s the Apple server, the App Store. And all this because they weren’t charging for the first one and discovered that they could charge for the second one. They’re lame excuse “due to a massive server, crash“ was such a cop out. I’m a programmer and you know exactly how these things work. It’s a total cop out and now I’ve lost a good calculator. I would gladly pay a flat fee for the original version to be able to restore all the templates I have written.

by Na*****, 2026-05-27

PLEASE READ THIS, The old app was way nicer! So handy to flip back and forth from loan to savings. History was better. Displayed on calculator screen. Now it’s not and when you go to history it’s a nightmare to read it. New version is just BAD. I would pay to get old version back!

by Lo*****, 2026-03-01

The dev got back to me with an easy fix involving logging out & back in on my other device. It’s now a great app again with all my library intact! One of my most useful apps because I like to write my own single-purpose calculator mini-apps. Example: What percent of 283 is 47?