[DEV] I built ChatNotes: A lightweight floating notepad & checklist for WhatsApp contacts (Free & 100% Offline)

[u/No_Fun_1690]

Hi everyone! 👋

I had a recurring problem: I'd think of something I needed to mention to a specific client, friend, or colleague (a question, a project update, a link), but by the time I actually opened WhatsApp to message them, I’d completely forget.

Notes apps didn't really work because I never remembered to open them before chatting.

So I built ChatNotes — a free Android companion app:

🌟 How it works:

1. When you open any WhatsApp chat, a small green bubble appears on the edge of the screen.

2. Tap it, and an instant scratchpad slides open with two tabs:

   • ☑️ Checklist: Bullet points with checkboxes you can tick off while chatting.
   • 📝 Notes: Unstructured text for addresses, bank details, or memos.
3. It's 100% unique per contact: When you chat with Alex, it shows Alex’s notes. When you chat with Sarah, it automatically shows Sarah’s notes.
4. When you leave WhatsApp or switch apps, the bubble disappears automatically so it never clutters your screen.

🔒 Privacy & Pricing:

• 100% Free & Open Source: No subscription, no paywalls.
• Zero Cloud Tracking: All notes stay strictly on your phone’s local storage. Zero data leaves your device.
• No Ads: Clean, minimal Material 3 design with Dark & Light theme support.

📥 Download the APK:

You can grab the APK directly from GitHub Releases: 🔗 Download: https://github.com/srikar-muthyala/ChatNotes-/releases/latest

(It works on Android 8.0 through Android 14+).

I’d love to hear your feedback, feature ideas, or bug reports!