ssaprus.works
The world's 1st bilingual predictive mesh messenger. Connect across languages and distances — no internet required.
Our Products
Whisper OS
Off-grid messaging firmware
A user-friendly firmware for handheld mesh radio devices. Send messages, view contacts, and monitor your device — all from a small screen with simple button controls.
Messaging
Quick messages & virtual keyboard
Customizable preset phrases, delivery status
Languages
English, Chinese, Japanese, Korean
Full multilingual message support
Display
Always-on clock modes
Default, Binary, Cat, Dog faces
Network
Repeater mode with live stats
Packet forwarding visualization
Power
ADC calibration for accuracy
Accurate battery readings
Updates
BLE OTA firmware updates
One-tap bootloader (nRF52)
Pro Features
Predictive typing (English & Chinese), Pinyin IME, Morse Input, Power save mode (72+ hours on ESP32)
Supported Devices
RAK4631, Heltec V3/V4, Heltec T114, GAT562, Wio Tracker L1, MeshTiny, ProMicro, FoBE Quill
Hardware Bundles
Ready-to-deploy mesh devices
Get your team connected with our pre-configured hardware bundles. Each device comes with Whisper OS Pro pre-installed and ready to use out of the box.
Wio Tracker L1 Pro
Compact, field-ready mesh node with rugged 3D-printed enclosure. No assembly required.
Core
nRF52840 @ 64 MHz
1MB Flash / 256KB RAM
LoRa
SX1262 862–930 MHz
+22 dBm TX / -148 dBm RX
GNSS
Quectel L76K
GPS, GLONASS, BeiDou, QZSS
Display
1.3" OLED 128×64
Joystick + buzzer
Power
2000 mAh Li-Po
USB-C + Solar (JST 2.0mm)
Size
181 × 56 × 26 mm
Grove port + SWD headers
GAT562 30S Kit
High-power 1W LoRa mesh device for maximum range. Extended battery life with dual 18650 cells.
Core
nRF52840 @ 64 MHz
1MB Flash / 256KB RAM
LoRa
SX1262 + High-Power Amp
30 dBm (1W) TX power
GNSS
Quectel L76K
GPS, GLONASS, BeiDou, QZSS
Display
1.3" OLED 128×64
Joystick + LED + buzzer
Power
Dual 18650 Li-ion (not included)
USB-C charging, 48–150h runtime
Bands
US915 / EU868 / CN470
SMA antenna interface
Our Partners
Working together with industry leaders to bring you the best mesh networking solutions
