About Attendo
Attendo is a free, privacy-first online attendance calculator and tracker built for students. Our mission is to help students take control of their academic attendance with simple, accurate tools that work entirely in the browser.
Our Story
Attendo was created by students, for students. We noticed that many of our peers struggled to keep track of their class attendance — manually calculating percentages, guessing how many classes they could miss, or losing track across multiple subjects. Existing tools were either too complex, required sign-ups, or lacked the features that students actually need.
So we built Attendo: a straightforward attendance calculator that tells you exactly how many classes you need to attend to reach your target percentage, or how many you can safely bunk. No accounts, no data collection, no distractions.
What Makes Attendo Different
- Privacy-first: All your attendance data stays on your device. We never send it to any server.
- No sign-up required: Start using the calculator immediately with zero friction.
- Multiple subjects: Track attendance across all your courses in one place.
- Simulator: Predict how your attendance will change if you attend or miss future classes.
- Analytics: Get a bird's-eye view of your overall attendance health.
- Free forever: No premium tiers, no hidden costs.
Our Values
Simplicity. The tool should be intuitive and straightforward. You should not need a tutorial to calculate your attendance.
Privacy. Your academic data is your own. We believe in building tools that respect user privacy by default.
Accessibility. Attendo is free and works on any device with a modern browser. No downloads, no installations.
Get in Touch
Have feedback, suggestions, or questions? We would love to hear from you. Contact us anytime.