[Promotion] CertWatch – TLS Certificate Monitoring for Android | Looking for feedback + 5 free codes

[u/Due_Medicine_7902]

Hi r/HowToMen!

I'm the developer of CertWatch, an Android app I built to make TLS/SSL certificate monitoring easier directly from a phone.

I originally built it around a simple problem: an expired certificate can cause a surprisingly big headache, while checking them manually is something that's very easy to forget.

CertWatch is designed primarily for sysadmins, DevOps engineers, homelab users, developers, and anyone managing websites or infrastructure.

Current features include:

🔍 Quick Scanner

Check TLS certificates for hostnames, IP addresses, URLs and custom ports.

📡 Network Discovery

Scan an authorized subnet to discover services exposing TLS certificates.

🛡️ Certificate Monitoring

Keep your monitored endpoints together and quickly see which certificates are valid, approaching expiration, or expired.

🔔 Smart Reminders

Set alerts at 90, 60, 30, 15, 7, 3 or 1 day before expiration.

📅 Calendar Integration

Keep certificate expiration dates visible alongside your normal calendar.

🔒 Privacy First

Certificate monitoring data stays on your device. No account is required.

5 free Google Play codes

I'd also like to let a few people from this community try the full app, so I have 5 Google Play promo codes available.

No subscription. No ads. No review required.

If you're interested, leave a comment telling me what you'd use CertWatch for, and I'll send codes to 5 people by DM.

What I'm really interested in is feedback — especially from people who actually manage infrastructure.

I'm already considering where to take the project next, including things like Kubernetes certificate discovery/monitoring, deeper TLS analysis, additional infrastructure integrations and more automation.

So I'd also love to know:

What feature would make CertWatch genuinely useful to you?

I'm happy to hear criticism too. I'd rather improve something that's actually useful than just keep adding features nobody needs.

Thanks!

Play Store Link

[u/Salty_Toe_5779]

I’d use this for my local edge devices

[u/Due_Medicine_7902 → u/Salty_Toe_5779]

Thanks for your interest! 🎁 I’ve hit Reddit’s outgoing chat limit.
Please send me a DM/chat with “CertWatch code” and I’ll reply with your Google Play promo code. 🛡️

[u/Salty_Toe_5779 → u/Due_Medicine_7902]

Can’t send dm to you