ZeGrapher vs QR Promise
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
ZeGrapher compared with QR Promise
| Detail | 
ZeGrapher | 
QR Promise |
|---|
| What it does | A free and open source math plotter, easy to pick up
| QR codes that keep working forever
|
|---|
| Stage | Established
| Not given
|
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| Founded | 2011
| Not given
|
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| Based in | Not given
| US
|
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| Pricing model | Open source
| Free trial
|
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| Pricing | Not given
| Pro: $3/mo after 7-day free trial (card required)
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| Key features | - Natural function notation like f(x) = 2 + cos(x)
- Sequences from recurrence relations
- Parametric equations with custom intervals
- CSV data import and spreadsheet editing
- Animated constants and variable families
- Vector and image exports (SVG, PDF, PNG, JPEG, BMP, PPM)
- Grid customization with π multiples for ticks
- Interactive navigation with drag and zoom
- Multi-language support in 9 languages
- Built-in manual and automatic work saving
| - Static QR generator for URLs, text, WiFi, vCard, email, SMS
- PNG and SVG downloads
- Dynamic codes with scan analytics by day, country, and device class
- Code Health Monitor alerts for broken destination URLs
- Migrate deactivated competitor codes
- One-click subscription cancellation
- Customizable colors and optional logo
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| What makes it different | - Draws mathematical objects exactly as written on paper with natural notation
- Handle CSV files of several million cells
- Objects can build on each other in expressions
- Exports with exact size in real centimeters
- Fully free and open source under GNU AGPL license
| - Static codes generated in your browser never route through servers and keep working forever after cancellation
- Code Health Monitor checks if printed code destinations go down and emails you to fix the link without reprinting
- Affordable pricing with no server-side kill switch on static codes after cancellation
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 40 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 11 | 0 |
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| Citation Flow (Majestic) | 11 | 0 |
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| Referring domains (Majestic) | 53 | 0 |
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4 details filled in for both companies.
More alternatives to ZeGrapher More alternatives to QR Promise