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A special camera app for recording important footage.

With it, you can reassure viewers that videos you created are captured in real life and unmodified.

Viewers can independently verify its authenticity using tools developed by C2PA.org, a collaboration between Adobe, BBC, Google, Microsoft, and many others.

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MedScan

1) Take a video of your medication's label (It can handle non-English text too.)

2) MedScan will analyze the video and explain what the medication is for in non-technical language

3) Read it out in your choice of language (e.g. English, French, Spanish, Chinese, Hindi, etc.)

All of this is achieved using the camera. It is designed to be very simple to use and senior-friendly. Video demo (15s).

*** Reminder: Always follow your doctor's guidance. This tool helps us identify medication more easily only. ***

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3PO

3PO is a first-of-a-kind app that can auto-identify language being spoken and translate it in real-time.

No configuration is required.

Just start and talk.  With support using built-in speaker/mic, or in ear buds mode.

It also supports continuous translation for listening to translated public broadcasts using your headset.

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Collective-AI.org

Maximum-Quality Answer for High-Stake Questions

At work, we often use whiteboard sessions to tap into our team's collective expertise so we can cover for each other's knowledge gaps.

Collective-AI.org does this for you. It makes five top AI models challenge and fact-check each other so you get the best possible answer to your question.

They debate interactively so hallucinations don't survive. You get one clear report with visibility into the debate and how the conclusion was reached. You would also get a confidence score on the report's findings for better decision-making.

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Good Food Ahead

This app does the discovery work for you.  It scans for highly-rated restaurants (4.5+ stars) in the background and notifies you.

Best for travellers exploring a new location.

Key Features:

- Everything is automatic. As you walk towards a highly-rated restaurant that is currently open, you will receive a notification.

- Notification includes price range, ratings and walking time to get there

- Intuitive icons (e.g. a Japanese flag is used to indicate Japanese cuisines on the map)

- Privacy friendly: No personal data is collected and no ads.

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Measure how calm you are

Score your meditations using Muse Headband's EEG data.

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Simplifier and Credibility Analyzer

When you encounter complex or technical content online, Simplifier can help.

It breaks down web pages and PDFs into simple, easy-to-understand bullet points and assesses the credibility of the content.

You can choose to use Gemini Flash / Claude / OpenAI for quick analysis. Or you can select Chrome's built-in Gemini Nano for local analysis (slower, but all data stays on your machine.)

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QuickShare Pro for Mac

Android users can now send/receive files to Mac natively.

All you need is this QuickShare Pro on your Mac.

Works on Wi-fi network, supports Android 6.0+.

The code was adapted from an open-source project called NearDrop created by grishka.

You can find the adapted version from my repo here.

Free and open source.

Cheers.

[Credit to ngrok.com for supporting this OSS effort.]

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Sidekick Mini

It adds a floating video recorder to your navigation app so you don't need to buy a dashcam separately.

With one tap, it launches the floating recorder and your navigation app and you are good to go!

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TwinCam 2.0

We love our selfies. But when we turn around to frame our shots, it's often hard to get good quality faces and sharp backgrounds at the same time.

So, I created TwinCam so we can make selfies by combining two shots. First, use the front camera to capture our smiles; then add a nice background with higher quality back camera.

Here is how it works in a demo.

Happy travels and hope this helps!

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Handsfree - Use Voice to Get Answers

"問AI"

You can now ask ChatGPT using voice in your native language (for example, Cantonese/Mandarin), completely handsfree.

Once configured, users will only need to press start/stop. Perfect for seniors or people who find it too hard to operate touch screens or have limited eye-sight.

You can ask questions using one of these 28 languages.

- English, Chinese Cantonese, Spanish , French, German, Italian, Japanese, Korean, Russian, Arabic
- Afrikaans. Indonesian, Polish, Ukrainian, Greek, Latvian, Turkish, Swahili, Welsh, Icelandic, Bengali, Urdu, Nepali, Thai, Punjabi, Marathi, Telugu

Handsfree is highly configurable with support for https proxy and city-level context.

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BuzzWatch

To help the hearing impaired, this Apple watch app listens for important sounds (e.g. car horns) and alert them using vibrations on their wrists.

- On device analysis only
- No audio recording / network calls
- Source code is published

- Supports sirens, car horns, baby cries, smoke alarm, etc

Open-sourced. Feel free to reuse this as a starting point / templates for other projects.

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Sidekick 

Navigation with Video Recording and local features for Toronto such as:

- Alert you of Speed Camera ahead
- Help you choose if it's worth taking a toll route (e.g. spend $5 of toll to save 15 minutes of travel time?)

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How Deep? 

Tap on map to show sea depth or land altitudes. Perfect for cruises and hiking trips.

It can also capture your travel trails in the background (optionally) to show breadcrumbs on your map.

[Data source: Google Maps Elevation API]

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What's that plane flying above me?

When you hear the sound of an aircraft flying in the sky, have you ever wondered... "What type of aircraft is it? Where is it flying to?"

If yes, this app is for you. It answers that exact question.

You can scan the sky manually by pressing the Search button or let the app auto-detect flights when it hears the sound of aircrafts. It uses AI sound classification models to achieve that.

Designed with privacy protection in mind.

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SuperRoute

Google, Apple, MapQuest, HERE, OpenStreetMap, Mapbox, Azure Maps all has its own strength & weaknesses.

SuperRoute shows you routes generated by all of them on the same map so you can evaluate which one fits your needs best.

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Lunar Calendar Event Generator


Google Calendar/Microsoft Outlook does not allow us to create recurring events based on lunar calendar (e.g. grandparents' birthdays, mid-autumn festivals)

This little web site generates an calendar import file (.ics) for your selected lunar events for the coming 60 years.

You can then import the generated .ics file into Google Calendar/Outlook /iPhone Calendar so it's easy to remember when to call/visit them on their birthdays 🎂

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Travel Shopping Buddy

Allows travellers to see the price of an item (with tax) in their home currency instantly, without clicking any buttons.

[Augmented reality using your iPhone's camera]


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View My Trips

Plot your trips on a map using your Google Maps Timeline data

Analysis is done locally on browser so your data stays private.

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Simple Slots 2

A user customizable, forever free slot game. 

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Clarity - Helps you understand your lab results

Clarity is designed to help us understand these test results better so we can manage our healthcare better.

It's easy to use and protects your privacy.

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Quiet Reader

- filters questionable news (stories that are not corroborated by multiple reliable sources.) Less is more.

- displays news with their credibility scores in a simple and distraction-free user interface (no ads, no comment boxes)

- offers customizable filters. You are always in control. No AI algorithm is used to prioritize the stories on your feed.

This is a community giveback project. It is free, with no ads, no data collection and no paywalls. Available on iPhone, iPad, Mac, and Android.

Giveback projects


What's new (Winter 2025)

- Q&A Mode for 3PO - You can now use voice (100+ languages)


What's new (Fall 2025):

- Handsfree (問AI): Handsfree, interactive Q&A with ChatGPT using voice, supports Cantonese and 27 other languages. iOS Download.

- TwinCam 2.0: We love our selfies. But when we turn around to frame our shots, it's often hard to get good quality faces and sharp backgrounds at the same time.

So, I created TwinCam so we can make selfies by combining two shots. First, use the front camera to capture our smiles; then add a nice background with the higher resolution back cameras.

Here is how it works in a demo.  Cross-platform with Android and iOS support.

Happy travels!

- QuickShare Pro:  Enable Android users to send and receive files natively with Mac machines. It uses Android's native Quick Share feature so you only need to install QuickShare Pro on your Mac to begin sending/receiving. Open-source and free!


What's new (Summer 2025):

- Sidekick Mini for Android is available now. It adds a floating video recorder to your navigation app so you don't have to buy a separate dashcam to record trips.

- A one-click Chrome extension (Simplifier) that performs a creditability check on what you are reading. It is designed to make it ultra-easy to evaluate how trustworthy that piece of web content is.

- Major upgrade to MedScan - It can now analyze medication labels for non-prescription drugs and understands foreign languages too. It's a complete rewrite. It now utilizes the latest Gemini 2.5 Flash model. Text recognition is much more robust than the frame-by-frame analysis v1.0 uses.

- A brand-new tool for travellers exploring new places:  Good Food Ahead

This app scans for highly-rated restaurants (4.5+ stars) as you explore new places. Once it discovers one, it sends you a notification with ratings, price range and walking time to it.

No manual effort is required! Everything runs in background mode.

- Enhancements to MyCommunityWatch.org - It looks for nearby incidents (using Toronto Call-for-Police Data) to alert you of important events such as fire, robbery, shooting within 15 minutes.

Privacy Policy

These tools collect data for the purpose of providing their features only.

We do not sell data to any advertisers or data aggregation agencies.

Sidekick (Android and iOS, package org.evergreenlabs.sidekick) uses location data as follows:

  • Navigation (foreground): While you use turn-by-turn navigation, Sidekick collects precise device location to show your position on the map, provide route guidance, and support related driving features (for example speed-camera alerts where available).
  • Place visit tracking (optional, background): If you enable Record restaurant & attraction visits in Settings, Sidekick collects location data in the background—including when the app is closed or not in use—to detect stops near restaurants and attractions and build a visit history on your device. This feature requires system permission for always-on / background location. A disclosure is shown in the app before you turn it on.
  • What we do with visit data: Visit records (place name, coordinates, arrival and departure times) are stored locally on your device. If you sign in, visits may sync to your Firebase account so they can be backed up and restored across devices. We do not use visit location for advertising or sell it to third parties.
  • Your choices: Navigation does not require visit tracking. You can leave visit tracking off, turn it off anytime in Settings, or revoke background location permission in your device settings. Deleting visits in the app removes them from your device; synced copies are removed when you delete them while signed in.
  • Other services: Navigation and place lookup use Google services (for example Google Maps Platform) under their terms. Crash and diagnostic logs may be collected anonymously to improve stability, retained up to 3 months, then deleted.

Other apps: Diagnostic data and crash logs (anonymous) are collected as needed, retained for up to 3 months and automatically deleted. For 3PO, audio data (anonymous) is sent to the 3PO cloud for transcription and translation.

Last updated May 26, 2026

Write-ups

Tech - billylo.medium.com
Work - linkedin.com/in/billylo1
Social - instagram


Other Projects

magic.evergreen-labs.org - See kids grow visually. It generates video that shows how their faces evolve over time. 


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