Software Alternatives, Accelerators & Startups

Calcumber VS CodeHerald

Compare Calcumber VS CodeHerald and see what are their differences

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Calcumber logo Calcumber

Calculate in a notebook and share โ€” from everyday math to engineering.
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CodeHerald logo CodeHerald

A code review tool that saves code review time, reduces distractions and improves your engineering kpis.
  • Calcumber Usefulness of units when calculating the weight of paper
    Usefulness of units when calculating the weight of paper //
    2026-07-25
  • Calcumber Calcumber interactively embedd on a web page
    Calcumber interactively embedd on a web page //
    2026-07-25
  • Calcumber Showcase from arithmetics to thermodynamics
    Showcase from arithmetics to thermodynamics //
    2026-07-25

Use variables, functions, and units and see results immediately. Add comments, copy calculations to apps like Word or Excel, or share them through an editable link. Calculate thermodynamic fluid properties with the integrated CoolProp library.

  • CodeHerald
    Image date //
    2024-01-07

CodeHerald provides a new way to keep track of your code review queue, grouped by your next action needed.

When would you use CodeHerald?

  • You work in a team that does code reviews.
  • Your team receives ad-hoc code review requests via multiple channels: DMs, emails, bookmarks of filtered lists.
  • Your team sometimes loses track of small pull requests, delaying them days.
  • Your team find ad-hoc code review requests distracting, but cannot put a finger on why.
  • Your team tried different strategies to improve code review process, and none of them felt right.

If any of the above is true, CodeHerald will help you.

What can CodeHerald do for you?

CodeHerald groups pull requests by next action: must review, needs an update, can be merged. It allows you to replace slack, emails, filters, and browser bookmarks with one single page that you can open at a glance and decide which PR to tackle next.

Calcumber

$ Details
free
Platforms
Web Windows Linux Mac
Release Date
2025 June
Startup details
Country
Switzerland
State
Aargau
City
Staufen
Founder(s)
Samuel Hartmann
Employees
1 - 9

CodeHerald

$ Details
-
Platforms
-
Release Date
-

Calcumber features and specs

  • ๐ŸŒฟ Naturally type expressions
    get immediate results
  • ๐Ÿ”— Copy and share
    keep calculations editable with a link
  • ๐Ÿงฉ Variables and constants
    pi, e, G, mu0
  • ๐Ÿงช Scientific functions
    sin, acos, log, round, and more
  • โ™จ๏ธ Thermodynamic fluid properties
    refrigeration, heat pumps, steam and air
  • ๐Ÿ’ก Installation optional
    run directly in your browser
  • ๐Ÿ“ฑ Multi-platform
    WebApp, Windows, more to come

CodeHerald features and specs

  • Attention Sets
  • Private & Public Repos
    Supported
  • Personal & Organisation Accounts
    Supported

Analysis of CodeHerald

Overall verdict

  • CodeHerald appears to be a niche or lesser-known platform, and there is insufficient verified public information available to make a confident, evidence-based assessment of its quality, reliability, or reputation.

Why this product is good

  • Limited publicly available reviews, ratings, or independent coverage to verify claims
  • No substantial user feedback or track record found across common review platforms
  • Lack of transparency around company details, ownership, or business history makes due diligence difficult
  • Without verifiable information, potential risks (billing, service quality, support) cannot be ruled out

Recommended for

  • Users who first conduct thorough independent research, including checking domain age, business registration, and recent user reviews
  • Those comfortable testing new or unverified services with minimal financial or data risk
  • Not recommended for users seeking an established, well-reviewed solution without additional verification

Category Popularity

0-100% (relative to Calcumber and CodeHerald)
Math Solver
100 100%
0% 0
GitHub
0 0%
100% 100
Online Calculators
100 100%
0% 0
Project Management
0 0%
100% 100

Questions & Answers

As answered by people managing Calcumber and CodeHerald.

Why should a person choose your product over its competitors?

Calcumber's answer

  • Sharing calculations and embedding them in documents or web pages is perfect for education.
  • Natural unit support, just include them in your expression and Calcumber handles it.
  • Free and easy access to thermodynamic fluid-properties.

What makes your product unique?

Calcumber's answer

  • Easy to use calculator notebook
  • From simple arithmetic to advanced engineering with units
  • Installation optional
  • Send calculation link with full privacy
  • Embed calculation templates, exercices and soultions in documents or interactively in web pages

What's the story behind your product?

Calcumber's answer

When starting for a Master of Advances Study in Energy Systems, I was looking for a suitable state-of-the-art calculator. Then I built my own Calculator Calcumber and now the Eastern Switzerland University of Applied Sciences is using Calcumber for teaching students in thermodynamics.

How would you describe the primary audience of your product?

Calcumber's answer

  • The notebook-style calculator is great for everybody who wants more than just a single line calculator.
  • The sharing and embedding features make it Calcumber very well suited for teachers and students. The power of consistently using units is shown immediatly.
  • Engineers will like the unit support, sharing calculations with collegues and if needed the built-in fluid properties calculation.

Which are the primary technologies used for building your product?

Calcumber's answer

HTML, CSS, TypeScript, PWA, CoolProp

Who are some of the biggest customers of your product?

User comments

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What are some alternatives?

When comparing Calcumber and CodeHerald, you can also consider the following products

Numara Calculator - A simple but powerful notepad calculator which evaluates expressions as you type.

SpeedCrunch - SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donateย .

Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.

Numi App - Numi is a beautiful text calculator for Mac.

Soulver - Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.

Numby - A natural language calculator for your terminal and macOS