StackrApp VS Calcumber

Compare StackrApp VS Calcumber and see what are their differences

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StackrApp

StackrApp is a collaboration tool that helps teams build and manage their marketing technology inventory.

Calcumber

Calculate in a notebook and share — from everyday math to engineering.

Visit Website

Landing page //
2022-07-21

Usefulness of units when calculating the weight of paper //
2026-07-25
Calcumber interactively embedd on a web page //
2026-07-25
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.

StackrApp

Website: stackrapp.com
Pricing URL: Official StackrApp Pricing
$ Details: -
Platforms: Laravel
Release Date: 2018 January

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Calcumber

Website: calcumber.app
Pricing URL: -
$ 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

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StackrApp features and specs

Visual Stack Tracking
StackrApp provides a visual and organized way to track and manage your technology stacks, making it easy to see all the tools and technologies you or your team are using at a glance.
Discovery of New Tools
The platform can help users discover new technologies and tools by browsing what others in the community are using in their stacks, facilitating learning and exploration.
Simple and Clean Interface
StackrApp offers a straightforward and user-friendly interface that makes it easy to create, edit, and share your technology stacks without a steep learning curve.
Community Sharing
Users can share their stacks with others, enabling collaboration and knowledge sharing among developers, teams, and the broader tech community.
Free to Use
StackrApp appears to be accessible without significant cost barriers, allowing individuals and small teams to use the platform without a major financial commitment.

Possible disadvantages of StackrApp

Limited Popularity and Community Size
StackrApp has a relatively small user base compared to more established platforms, which limits the breadth of community content and shared stacks available for discovery.
Limited Integrations
The platform may lack deep integrations with other popular developer tools, project management systems, or IDEs, reducing its utility within existing workflows.
Sparse Documentation and Resources
As a smaller platform, StackrApp may have limited documentation, tutorials, or support resources, making it harder for new users to get the most out of the tool.
Uncertain Long-term Viability
Being a lesser-known product, there may be concerns about its long-term maintenance, updates, and whether the platform will continue to be supported in the future.
Limited Advanced Features
The platform may lack more advanced features such as detailed analytics, team management capabilities, or robust comparison tools that power users and larger organizations might need.

Calcumber features and specs

🌿 Naturally type expressions
get immediate results
🔗 Copy and share
keep calculations editable with a link
🧩 Variables and constants
pi, e, G, mu0
🧪 Scientific functions
sin, acos, log, round, and more
♨️ Thermodynamic fluid properties
refrigeration, heat pumps, steam and air
💡 Installation optional
run directly in your browser
📱 Multi-platform
WebApp, Windows, more to come

Analysis of StackrApp

Overall verdict

I don't have verified, up-to-date information about StackrApp (stackrapp.com) to make a reliable assessment. I'm not able to confirm this product's features, reputation, or quality with confidence, and I don't want to provide potentially inaccurate information about a specific commercial service.

Why this product is good

I lack verified data on this specific product's actual performance and user reviews
Providing fabricated details about features or quality would be misleading
Product offerings and quality can change over time, making unverified claims risky
I cannot browse the internet in real-time to check the current state of this website or app

Recommended for

Anyone considering this app should check recent user reviews on independent platforms like Trustpilot, G2, or app stores
Research the company's reputation through the Better Business Bureau or similar consumer protection resources
Look for recent, dated articles or reviews rather than relying on AI-generated assessments for specific commercial products
Try a free trial or demo if available before committing, and verify claims directly with the company

Category Popularity

0-100% (relative to StackrApp and Calcumber)

StackrApp

Calcumber

Productivity

100 100%

Productivity

0% 0

Education

0 0%

Education

100% 100

Digital Marketing

100 100%

Digital Marketing

0% 0

Engineering Calculator

0 0%

Engineering Calculator

100% 100

Questions & Answers

As answered by people managing StackrApp and Calcumber.

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?

Calcumber's answer:

Eastern Switzerland University of Applied Sciences

User comments

Share your experience with using StackrApp and Calcumber. For example, how are they different and which one is better?

What are some alternatives?

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