Letter4U
Create cute, interactable, and so pretty digital gifts and love letters
Stay Connected. Ride Together.
Connect with your riding group without internet. No SIM, no data, no subscription.
What it does:
Voice intercom — talk to other riders in real-time over local Wi-Fi hotspot
Live ride map — see every rider's position, speed, and distance to destination
Navigation — auto-tilting map with route line toward destination (Google Maps-style)
Offline-first — works fully without internet. Host creates a hotspot, others join
Bluetooth & wired headset support with noise cancellation
How it works:
One rider (host) taps Create Group — starts a local hotspot
Others tap Join Group or Scan Nearby Riders — scan host QR to connect
Everyone gets live voice + GPS map — no internet needed
Set a destination, navigate together, talk hands-free
Key features:
Push-to-talk or hands-free voice
Rider speed & distance tracking on map
Auto-follow tilt navigation
Noise cancellation
Bluetooth headset support
Group member list with signal strength
QR invite sharing
No server, no internet, no fees
Requirements:
Android phone with Wi-Fi hotspot capability
Wired headset recommended for riding.
P.S: Still polishing and enhancing app.
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