
Qalculate!
Numi App
Soulver
fxSolver
WolframAlpha
OpenCalc
GeoGebra Scientific Calculator
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 Donate .

Minitab
JMP
SAS JMP
Browser-based statistics for quality engineering
Which is more popular?
Based on our record, SpeedCrunch seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | speedcrunch.org | chartsays.com |
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| Listed in |
In their own words, as submitted to SaaSHub.


No description of SpeedCrunch yet.
ChartSays is a browser-based statistics platform for practical data analysis. Public tools include Cpk process capability, I-MR control limits, and balanced crossed Gage R&R calculations. Published sample reports cover comparisons, Pareto analysis, designed experiments, forecasting, and...
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
SpeedCrunch
No ChartSays videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SpeedCrunch and ChartSays.
ChartSays's answer:
We help operate ChartSays. It is designed for quality engineers, Six Sigma practitioners, and analysts who need to turn measurement data into understandable statistical results in a browser. Typical tasks include checking process capability with Cpk, monitoring individual measurements with I-MR control charts, and organizing a balanced crossed Gage R&R study using part, operator, trial, and measurement data. Worked sample reports help users inspect how results are presented and what needs care in interpretation. These are intended use cases, not a claim about current customers or a substitute for a correctly designed study. Explore the tools and sample reports at https://chartsays.com/.
ChartSays's answer:
ChartSays is an online statistical analysis product operated by Suzhou Jingye New Management Consulting Co., Ltd. It publishes traceable methods, worked examples, and chart-reading guidance for quality engineering and business analysis. The product documents 54 statistical methods, a glossary, and browser calculators that need no sign-in. Public calculators do not upload their inputs. Saving data, running the full analysis workflow, generating reports, and exporting them requires an account.
ChartSays's answer:
ChartSays is a web/SaaS product used in the browser. It is not presented as a substitute for any specific desktop statistics package. Public calculators and method pages are available without an account, while the full workspace needs a sign-in. Supported uploads are CSV, XLSX, TSV, and TXT. A free plan covers unlimited standard analyses with watermarked exports and no AI. Paid plans ($14.90/month or $129/year) add AI analysis and remove watermarks. The focus is quality engineering, Six Sigma work, and business analysis.
ChartSays's answer:
ChartSays is browser-based statistics software for Six Sigma, quality engineering, and business analysis. It includes 54 statistical methods, chart-reading guides, and free public calculators that work without sign-in. Users can upload CSV, XLSX, TSV, or TXT files. Saving data and using the full analysis workspace requires an account. The free plan is $0 for unlimited standard analyses with watermarked exports and no AI. Paid plans are $14.90 per month or $129 per year and add AI analysis with exports that are not watermarked.
ChartSays's answer:
ChartSays is web/SaaS software used in the browser. No desktop install is required. Public calculators run without sign-in and do not upload their inputs. The full analysis workspace, including saved data, reports, and exports, requires an account. Users upload data as CSV, XLSX, TSV, or TXT files.
ChartSays's answer:
Share your experience with using SpeedCrunch and ChartSays. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


SpeedCrunch allows you to crunch complex sets of math problems at high speeds. The app supports a wide range of mathematical operations, from random number generation to trigonometry.
We have no reviews of ChartSays yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


As well as of https://speedcrunch.org/. Source: over 4 years ago
I would love to see Speedcrunch to become KDE's first choice as a calculator app:. Source: almost 5 years ago
Hello, if you are looking for a good scientific calculator you could give a chance to speedcrunch. Source: almost 5 years ago
Tracking ChartSays since Oct 2026.
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