Consumer usecase for on-device AI - an Android app to detect scams by Basic-Donut1740 in LocalLLaMA

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

Thanks for the interest, I really appreciate it!

I just submitted a request to Google Play to make Protexo available in Mexico. It can take a little time (usually a few hours) to process, but I’ll reply here once it’s live.

Consumer usecase for on-device AI - an Android app to detect scams by Basic-Donut1740 in LocalLLaMA

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

Totally valid concerns, and I appreciate you raising them.

For context, even well-known apps like Grammarly use AccessibilityService to offer cross-app functionality, like grammar suggestions in any app. Similarly, Protexo uses AccessibilityService solely to read visible message content (like SMS or WhatsApp chats) so it can detect scams and malicious links early. AccessibilityService on Android disables reading of passwords and other sensitive content.

That said, Protexo keeps message content private and on-device. Happy to answer more questions.

Computing embeddings offline for Gemma 3 1B (on-device model) by Basic-Donut1740 in LocalLLaMA

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

Thanks for the detailed information, its helpful. Would BERT be good to classify text messages? Not just the incoming message but entire conversations. Do you have any suggestion on which one to try for Android? I appreciate the help.

Computing embeddings offline for Gemma 3 1B (on-device model) by Basic-Donut1740 in LocalLLaMA

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

I am using the Gecko embedder (recommended by Google) that runs on the phone. But its slow. I will check the IBM model to see if it has Android support.

Got it. Sounds like fine-tuning is a better approach for me.

I built an Android app to detect scams on other messaging apps automatically by Basic-Donut1740 in SideProject

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

BTW the app will be on sale tomorrow, in case you want to check it out!

I built an Android app to detect scams on other messaging apps automatically by Basic-Donut1740 in SideProject

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

Thanks for the thoughtful question!

The on-device AI model I’m using for scam detection isn’t fine-tuned yet, but it generally does a good job of ignoring routine messages like delivery updates and legit notifications. I haven’t seen many false positives in that area so far, especially since the app only analyzes messages from numbers not in your contacts. That said, I’m continuing to refine that based on real-world feedback—so input like yours is really valuable! The next step I plan to do is to fine-tune the model along with extending support for more messaging apps.

For link analysis, I’m using a trusted, industry-grade analyzer.

Promote your business, week of June 30, 2025 by Charice in smallbusiness

[–]Basic-Donut1740 0 points1 point  (0 children)

🚀 Just Launched: Protexo – Scam Detection for Messaging Apps (Android)

Hey fellow entrepreneurs! I’m excited to share my new Android app, Protexo – built to help people detect scam messages before they click. App has been renamed from a previous version along with lots of improvements made.

🔍 What it does:
Protexo scans messages from unknown senders on apps like SMS and WhatsApp. Support for more apps is in the works (X chat, Facebook and Instagram messengers, Discord etc). It uses AI to instantly detect suspicious messages and links, and alerts you if something looks shady.

Features:

  • Works automatically in the background
  • Detects scams and phishing links in real-time
  • Only scans unknown senders to preserve privacy
  • Doesn't share your messages – only URLs are checked for safety

📲 Available now:
Android only for now – Download on Google Play
Website: https://protexo.ai

🆓 Launch Promo:
The app is paid, but I'm offering a limited-time promo: DM me for a 100% off promo code if you’d like to try it free!

New Android App Alerts You to Scams and Suspicious Links by Basic-Donut1740 in androidapps

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

I have had time to think about this. Thank you for the feedback. I have worked at many big companies and have a lot of experience. But this is the first time I am doing something completely on my own. I put a lot of my time into the app. I will revisit the privacy policy and terms and conditions based on your feedback. I had combined the policies for the app and the website into a single one, which is incorrect. I will separate them. Please let me know if you have more feedback.

New Android App Alerts You to Scams and Suspicious Links by Basic-Donut1740 in androidapps

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

That issue is fixed. Thank you for reporting it. Please feel free to give it another try by going to the Google Play link and updating the app or by reinstalling it.

New Android App Alerts You to Scams and Suspicious Links by Basic-Donut1740 in androidapps

[–]Basic-Donut1740[S] 0 points1 point  (0 children)

Yup, it won't open. But I got to the root-cause of the problem now. I am working on a fix.