# Herman — Herman Calculator

> Comprehensive offline calculator app with over 300 specialized calculation tools. (iPhone/iPad app by H Valeur.)

- Source: https://appshunter.io/ios/app/herman/id6743255218 (this page in markdown: same URL + `.md`)
- Developer: [H Valeur](https://appshunter.io/developer/621824042)
- Category: Education, Finance
- Price: $2.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.6 · 2 MB
- Languages: American English
- Released: 2025-04-06
- Data updated: 2026-08-16
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/herman/id6743255218/reviews.md

## What is Herman?

Say goodbye to complexity and hello to effortless calculations with the Herman Calculator, the ultimate app inspired by the popular web version (https://herman.info). Now packed with even more features and designed to work seamlessly without an Internet connection, it's perfect for users who value reliability on the go. 

The Herman Calculator features over 300 unique calculators that cover an extensive range of fundamental quantitative principles. Whether you're managing finances, exploring mathematical concepts, or solving everyday problems, this app is your perfect companion!

What can the Herman Calculator calculate?

Business Brilliance: Absence Percentage, Attrition Rate, Average Fixed Cost, Bradford Factor, Break-Even, Cap Rate, Capital Gains Yield, Customer Retention, Debt-to-Income Ratio, Expense-to-Income, Lerner Index, Market Capitalization, NOPAT, Parking Ratio, PayPal Fee, Profitability Index, ROI, Sales Tax, Square Fee, Tariff, Utilization Rate, VAT

Financial Focus: Amortization, Capital Gains Yield, Car Depreciation, Car Loan Payment, Commission, Credit Card Cost, Discount, Down Payment, Emergency Fund, Expense-to-Income, Future Value Factor, Gratuity, Home Equity, House Affordability, Income Comparison, Mortgage Payment, Present Value Factor, Rent Affordability, Sales Tax, Tip Payment, VAT

Fraction Fun: Decimal to Fraction, Fraction to Decimal, Fraction to Percent, Percent to Fraction, Ratio to Fraction, Simplify Fraction

Investment Insights: Cap Rate, Capital Gains Yield, Dividend Yield, Hedge Ratio, Home Equity, Market Capitalization, P/E Ratio, Portfolio Return, ROI

Length Logic: Conversions between centimeters, feet, inches, kilometers, meters, miles, millimeters, and yards in every possible permutation

Mass Made Simple: Grams, kilograms, milligrams, ounces, pounds, and stones—converted into each other to meet every need

Math Magic: Absolute Value, Additive Inverse, Circle Measurements, Divisible by, Fibonacci?, Quadratic Equation, Prime Number?, Radian to Degree, Roman Numerals, Significant Figures, and so much more—exploring calculations both basic and complex

Percentage Precision: Absence Percentage, Percent Change, Percent Error, Percent of, Percent to Decimal, Plus Percent, Minus Percent, and Fraction to Percent

Time Transformations: Days, hours, minutes, months, seconds, weeks, and years—converted in every combination imaginable

Volume Variations: Cups, gallons, liters, milliliters, ounces, pints, quarts, tablespoons, and teaspoons—effortlessly transformed to fit your needs

Why choose the Herman Calculator?

Comprehensive Coverage: Tackle diverse calculations—from fractions to percentages and beyond—all in one app!

User-Friendly Design: Intuitive layout ensures ease of use for both professionals and students.

Speed Meets Accuracy: Save time while making precise calculations.

Whether you're simplifying complex fractions, calculating percentages for work, or diving into mathematical mysteries, the Herman Calculator delivers all the tools you need in a single, sleek package.

The app is completely free of advertising, subscription fees, in-app purchases, and user tracking. Simply put, you can enjoy its features without encountering any hidden costs or unexpected interruptions.

## Key features

- Over 300 unique calculators
- Finance and business calculations
- Math and fraction tools
- Unit conversions (length, mass, time, volume)
- Offline functionality
- User-friendly design


## Frequently asked questions about Herman

### What types of calculations can Herman perform?

Herman offers over 300 calculators covering business, finance, fractions, investments, length, mass, math, percentages, time, and volume. This includes tools for financial metrics, mathematical concepts, and various unit conversions.

### Does Herman require an internet connection to work?

No, Herman is designed to work seamlessly without an Internet connection. This makes it a reliable tool for users who need to perform calculations on the go.

### Is Herman suitable for students?

Yes, Herman is an excellent companion for students, offering tools for understanding mathematical concepts, simplifying fractions, and calculating percentages. Its user-friendly design makes complex calculations accessible.

### What is the user sentiment for Herman?

Based on the available data, Herman has a perfect 5.0-star rating from one review, indicating very positive user sentiment. Users appreciate its comprehensive features and ease of use.

### How often is Herman updated?

The latest version of Herman was released on May 8, 2025, indicating recent development and support. The app was initially released on April 6, 2025.

### What devices is Herman available on?

Herman is available for both iPhone and iPad devices. It is designed to provide a consistent experience across Apple's mobile platforms.

### What is the age rating for Herman?

Herman has an age rating of 4+, making it suitable for a wide range of users, including younger individuals and children, as well as adults.

### Does Herman have ads?

No, Herman does not contain advertisements. As a free application, it provides an uninterrupted user experience without any ad interruptions.

## Version history (last 4 releases)

### 1.4 — 2025-05-08

The latest version of the Herman Calculator has expanded significantly! It now includes three additional categories and a 
wider selection of calculators, making it even more versatile. 

A standout feature is the addition of detailed answer explanations, where many results now include links to show exactly 
how the calculations are performed. 

Plus, the search functionality has been upgraded to incorporate reputable math sites, ensuring users get reliable and well-sourced information.

### 1.3 — 2025-04-28

The latest version of the Herman Calculator brings an impressive upgrade, featuring over 300 calculators organized into 10 distinct categories. With this expansion from just over 100 calculators to more than 300, we've introduced a search function to help you effortlessly locate the exact calculator you need.

As always, the Herman Calculator app remains committed to user privacy and simplicity. It continues to offer a no-ads, no-tracking, and no in-app purchases experience, ensuring a distraction-free and seamless user experience.

### 1.2 — 2025-04-07

Resolved an issue where certain calculator results were being partially displayed, causing the bottom portion of the answers to be cut off and rendering them difficult to read.

### 1.1 — 2025-04-06

No release notes.

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All apps by H Valeur: https://appshunter.io/developer/621824042

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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 2026-08-16.*