📲

Install NYMPH on Your Phone

Zero-reception canyon autonomy • Standalone Home Screen App
📶 Official Direct Phone & Web Access:
• Official Website: https://nymphnode.com
• Direct Phone APK: https://nymphnode.com/downloads/nymphnode-v3.4.8.0.apk
Direct Installable Android APK v3.4.8.0 BLE Standalone

Official standalone native installation package with direct Bluetooth Low Energy (BLE 5.2) live telemetry stream, instant pulse & batch readout, all 71 target fish species, offline river maps, and local streamside catch database.

📥 Download Android APK (Direct Install) • 1.7 MB (v3.4.8.0 BLE)
Mirror 1: Versioned APK (v3.4.8.0) Mirror 2: Direct Website CDN
📲 Easy 3-Step Phone Installation (Universal Android 5.0 - 15+):
1. Tap Download Android APK above.
2. If Chrome displays "File might be harmful", tap "Download anyway" (standard prompt for direct APKs outside Play Store).
3. When download finishes, tap "Open" or open your phone's Downloads app and tap nymphnode.apk to install!
🛡️ If Google Play Protect prompts: Tap "More details ˅" and then tap "Install anyway".
Alternative: Progressive Web App (PWA)

Install directly to your Android launcher via Chrome service worker caching.

📦 Download Full Android Studio Source Project (.zip)
Installed or ready to explore?
🏛️

Apple App Store & Google Play Store Publishing Dossier

Step-by-Step Commercial Deployment Architecture & Cost Registry
💰 Upfront Store Registration Costs: $124.00 USD Total
• Apple Developer Program: $99.00 USD / year (Covers iPhone, iPad, Apple Watch watchOS companion)
• Google Play Console: $25.00 USD one-time registration fee (Covers Android Phone & Wear OS watches)
📦 Pre-Compiled Store Metadata (Copy-Ready):
• App Title: NYMPH: Fly & Sinker Telemetry
• Subtitle: Streamside Depth, Temp & Drift
• Primary Category: Sports / Outdoor Recreation
• Age Rating: Everyone (4+) • Zero Ads • No User-Tracking
• Apple Watch Bundle ID: com.nymphnode.app.watchkitapp
• Wear OS Package Name: com.nymphnode.app (:wear module)
• Privacy Policy URL: https://mckjam010.github.io/Fly-sensor/
✅ Required Human Actions (James Checklist):
[ ] 1. Enroll Apple Developer: Visit developer.apple.com/enroll and sign in with your Apple ID. Pay $99 USD.
[ ] 2. Register Google Play Console: Visit play.google.com/console/signup. Pay $25 USD one-time fee.
[ ] 3. Grant App Manager Role: In App Store Connect & Play Console, add CI/CD software lead email to trigger automated fastlane deployments.
* Full comprehensive document saved to your Chairman Inbox: Company Team/James/Inbox/2026-10-23_CHAIRMAN_ACTION_DOSSIER_APPLE_WATCH_AND_WEAR_OS_STORE_LAUNCH.md
🎓

Introduction to NYMPH

Slide 1 of 6 • The Horology of Hydrodynamics
🎨

Add Custom Tackle (Fly, Lure, or Bait)

Craft and equip your personal tying pattern, lure design, or natural bait rig.
+50 Points
📷
Snap a photo or upload an image of your custom rig/fly.
🌟

Discover Uncataloged Species

Reward: +100 Discovery Points • Automated Artwork Commission
📸
Tap to Upload Specimen Photograph
AI verifies morphological novelty vs. existing 40 cataloged species.
⚡ Catalog Expansion Protocol: Once submitted, our backend deduplication engine verifies the species is unrecorded. An exquisite oil-painting artwork plate will be generated, +100 Points awarded, and the species will be added to the worldwide encyclopedia.

🎣 Add Catch to Telemetry Report

Record your capture with exact sub-surface telemetry and the artist-crafted fly, lure, or bait used.
📍
Streamside GPS Fishing Ground
Melkbosstrand Beach (-33.7246° S, 18.4421° E)
🌊 Surf & Flats (<0.1km to sea)
55 World Species
Sandshark (Lesser Guitarfish)
Rhinobatos annulatus
Target Depth: 1.10m • Temp: 16-24°C
Hydrostatic pressure sensor reading at the exact millisecond of kinetic strike detection.
📸
Tap to Upload or Snap Catch Photo
Stored securely in offline sync queue and attached to water column telemetry.
Equipped Rig: Perdigon Jig Nymph
Size #16 • 3.5mm Gold Tungsten Bead • Fast Sink

🏹 Log Cast to Casting Telemetry Registry

Record your cast mechanics, initial launch acceleration, line release speed, and cadence timing. Kept separate from fish catch logs.
Note: Shorter initial turnaround pause (0.42s) expanding to longer pauses (0.68s, 0.98s) reflects increasing aerialized line.
🤖
NymphNode™ Android App v3.4.8.0 BLE Standalone
Direct Native Install • BLE 5.2 Stream & 100% Offline
📡 Live App 📥 Download APK (1.7 MB) 🌐 Mirror
⚡ DIRECT FORMS:
📡 Live Bluetooth App 🎮 ESP32 BLE Simulator
NYMPH
THE HOROLOGY OF HYDRODYNAMICS
★ PATENT PENDING FIELD ADRIFT 📱 Screen: Rect
🎣 7-Day Streamside Free Trial

Fishing on the water right now? We never disrupt your time cast streamside. Tap below to activate full offline telemetry immediately.

ABOUT NYMPHNODE™

NymphNode™ is a patent-pending aquatic hydro-telemetry capsule weighing under 0.9 grams. Engineered for Euro-nymphing and freestone fly fishing, it attaches directly to your leader or sighter.

Equipped with a micro-accelerometer, hydrostatic depth sensor, and water temperature sensor, it measures subsurface drift velocity shear and detects subtle takes invisible to traditional bobbers.

HOW TO USE

1. Attach to Leader: Snap the capsule onto your two-tone sighter mono or dropper leader using the hydrodynamic line channel.

2. Zero Depth in Current: Hold the sensor in the surface current for 3 seconds and tap "Zero Depth" to calibrate atmospheric baseline.

3. Fish with Live Telemetry: Cast your Euro-nymph rig. Keep your phone in your pocket or mount it to your chest pack. Listen for acoustic chime strikes or feel haptic pulses on your watch.

ONLINE INFORMATION

Visit our documentation repository and global patent fortress online at nymphnode.com and github.com/mckjam010/Fly-sensor.

For assistance with your account or order, contact sarah.jenkins@nymphnode.com or our river guide tech lead liam.crawford@nymphnode.com.

NYMPH
FIELD ADRIFT
A11Y:
🟢
Sensor Telemetry Stream
Drift Steady • Sub-Surface Balanced
Hydrostatic Depth STRIKE ZONE
0.85m
Water Temperature: 13.4°C Target Nymph Depth: 0.75 - 1.10m
Micro-Drift Velocity NATURAL DRIFT
1.24m/s
Presentation Quality: Optimal Micro-Drift (Zero Drag)
Hardware Sensor Node ● Dialog DA14531 BLE
Battery: 88% (18 hrs remaining) • Serial: NN-26-00001
Atmospheric & River Weather 🟢 GPS SLEEPING (BATTERY SAVED)
14.2°C Air
Pressure: 1013.2 hPa
Wind: 6 km/h NW
☀️ Solunar Major Feed: 18:20 📍 Last Pin: Snowy River (-36.42°, 148.60°)
Local Phone Storage Architecture OFFLINE AUTONOMY
📁 Permanent Storage
• User details & defaults
• Fish: Rainbow Trout
• Tackle: Perdigon #16
• 71 Fish art images cached
⚡ Dynamic Storage
• Area weather cached
• 10km radius maps cached
• Last 10 node retrieves: 10/10
• Offline API queue: 0 pending
River & Waterway Node OFFLINE GPS
Water Clarity: 0.42 NTU (Crystal Clear)
Barometric Pressure: 1014.5 hPa (Rising)
Optimal Rig: 5.5mm Tungsten Bead #14
🗺️
10km Radius Offline Map Download Active
All river depth contours, topographic relief, and satellite tiles within 10km of your last known pin (-36.42°, 148.60°) are downloaded in local storage.
Hydrodynamic Fly Recommendations AI MATCH
Copper John #16
Matches current 1.2 m/s riffle sink rate
+50 pts
Tungsten Pheasant Tail #14
Optimal for 0.85m strike zone
+50 pts
Recent Catch Logbook LOCAL STORAGE
Catches logged on the river will appear here with points awarded.
ANGLER PRO SHOP & SPARES
Consumable accessories & replacement sensor hardware
Replacement Nymph Sensor Head
5.5mm capsule • 60m depth rated
$89.00 USD
Tungsten Micro-Bead Assortment (25pk)
Precision slotted • 2.5mm / 3.0mm / 3.5mm
$24.00 USD
Fluorocarbon Hydro-Tippet 4X (50m)
Ultra-low refractive index • Fast sinking
$18.00 USD
Streamside Watch Telemetry Console
● PAIRED 14:24 🔋 94%
DEPTH
1.42m
Sink: +0.18m/s Temp: 12.4°C
⌚ Watch Connectivity & App Store Deployment:
• Apple Watch: Native watchOS app bundled with iOS App. Pairs via WCSession. Automatic install upon pairing iPhone.
• Wear OS (Android): Jetpack Compose module distributed on Google Play. Pairs via Wearable.DataClient.
PATENT PENDING (US, UK, ZA) • 5.5mm HYDRODYNAMIC CAPSULE

FEEL EVERY DRIFT.
MASTER EVERY DEPTH.

The world's first sub-surface micro-telemetry instrument for the modern angler. Streaming real-time hydrostatic depth, optical water clarity (turbidity), thermal holding layers, and kinetic strike alerts directly to your smartphone and smartwatch.

Reserve Founder Edition — $145
✨ 50-Meter Waterproof Structural Rating ⚡ Magnetic Billet USB-C Dock 📱 Real-Time iOS & Android BLE 🛡️ 1-Year Lost Fly Guarantee
🌊 OUR PURPOSE • COMMUNICATING WITH THE CURRENT

We want to make sure every angler truly enjoys their time on the water, gets into catching fish much faster, and understands what fish do and how they work. NymphNode allows you to communicate directly with the river, the lake, or the sea—so instead of walking in blind, you have sub-surface truth right from the get-go. Our mission is to help even the most novice angler learn faster, fish smarter, and have an unforgettable experience every time they step into the current.

CINEMATIC PRODUCT THEATER

See NymphNode in Motion

Experience the telemetry science, streamside action, and exploded internal architecture.

FILM 1: PRODUCT SCIENCE
DEPTH 1.84m
WATER TEMP 13.2°C
TURBIDITY 4.2 NTU
ACCEL SHOCK 0.08G
NARRATOR: At only 5.5mm, NymphNode is the smallest waterproof angling computer ever engineered...
00:00 / 00:45
Hydrostatic Depth (P = ρgh)
Submersible hydrostatic transducer resolves depth to ±1mm without zero-drift.
Optical Water Turbidity (NTU)
Dual-aperture nephelometric light sensor detects water clarity & siltation levels.
3-Axis Kinetic Strike Acceleration
Ultra-low-power 3-axis motion tracking sensor samples at 50Hz to flag micro-takes instantly.
Bluetooth 5.2 LE Secure Sync
Automatic burst sync when breaching surface tension; continuous topwater sync.
THE VALUE OF CERTAINTY

Because Some Moments Cannot Be Repeated.

We don't price NymphNode on the cost of silicon. We price it on the value of your time and the margin of victory.

RECREATIONAL & TRAVEL ANGLERS

Save Your One Precious Day on the Water

You planned for six months. You flew across the country, booked the mountain lodge, and purchased handcrafted tackle. You have exactly two days on wild water before returning to the grind.

"Are you going to spend those precious hours guessing whether your nymph is dragging 2 inches above the riverbed or drifting in dead water?"

At $145 Early-Bird, NymphNode costs less than a single night's dinner at the lodge. It is an insurance policy for your most valuable, irreplaceable asset: your time on the river.

$2,500+ Average Fishing Trip Cost
< 6% NymphNode Insurance Cost
100% Drift Depth Certainty
COMPETITIVE FLY & BASS ANGLERS

The 5% Tournament Podium Advantage

You spend years preparing tackle, scouting water, and perfecting your cast. In high-stakes competition, every angler on the water has elite rods, premium fluorocarbon, and proven lures.

"Instinct alone cannot tell you where a cold-water thermocline begins. NymphNode delivers the 5% sub-surface telemetry edge that separates the winner's podium from fourth place."

Pinpoint thermal seams where trophy fish shelter, gauge real-time water turbidity to pick the perfect fly color, and detect subtle micro-takes before the strike indicator even flinches.

1st vs 4th Decided by Ounces
+5% Telemetry Decision Edge
50 Hz Micro-Strike Kinetic Rate
RESERVE YOUR SYSTEM

The Founder Collection

Limited pilot run of 500 numbered units with guaranteed early-bird pricing and zero-risk cancellation.

🦈
Active Streamside Quarry: Sandshark (Lesser Guitarfish)
Pinned at Melkbosstrand Beach (<5km coastal buffer) • Sub-surface feeding strata: 1.10m
Looking for raw hardware schematics, BLE GATT profiles, and sensor registers?
Tactical AI Hydrodynamics

Cast Telemetry & Lake Shore Intelligence

Visual drift trajectory rendered over scenic aquatic topography with AI feeding window, thermocline strata, fish visual range, and fan-casting sector optimization.

📍
Active Watershed Melkbosstrand Beach, WC -33.7246° S, 18.4421° E
➔
Target Quarry Sandshark (Lesser Guitarfish) Depth: 1.10m • 16–24°C
➔
Terminal Rig Sardine Chunks / Bait Strip Sink: 0.85 m/s • 28.0g
📍 -33.724619° S, 18.442074° E • Melkbosstrand Beach / Witzands Coastal Flat (<5km Coast)
NATIVE IN WATERSHED: Dual-Zone Active
🏞️ Freshwater Watershed Quarry:
Inland Headwaters & Aquifers
🌊 Coastal Saltwater Quarry (<5km Sea Buffer):
🌊 5KM COASTAL OVERLAP ACTIVE
Sandshark (Lesser Guitarfish) (Rhinobatos annulatus)
Shallow Surf & Warm Sand Flats
Holding Water Stratum
1.10 m (±0.15m)
Thermal Comfort Window
16.0°C – 24.0°C
Visual Acuity Radius
2.1 meters (Snell: 2.0m)
Optimal Terminal Tackle
Sardine Chunks / Bait Strip
Endemic guitarfish burying itself in sandy surf shallows and warm estuary sand flats. Sensitive electro-receptors locate sand prawns, crabs, and baitfish in murky water.
🎯 Terminal Tackle Suite & Precision Scale Euro Jig Fly
Discipline:
Pattern & Anatomy Size #16 • 3.5mm Gold Bead
Mass & Ballast 0.45 g (Tungsten)
Descent Velocity Fast (0.55 m/s)
Time to Target Stratum 2.64s to 1.45m
🧵 Tippet & Line Recommendation
💡 Suggested: 6X (3.5 lb / 1.6 kg)
ACTIVE TELEMETRY LAYERS:
🎯
Hydrodynamic Presentation: Natural Dead-Drift Active
Lateral acceleration |Ax| ≤ 0.04g — Zero unnatural drag across water seams.
96% Dead-Drift ⭐
💡
RECOMMENDED DRIFT DEPTH: 1.48 m • DESCENT TIME TO TARGET: 2.8 SECONDS
Based on 72h barometric trend (-1.4 hPa) & swim bladder adjustment rate: Fish holding in thermocline (14.2°C) where aquatic insect drift overlaps dissolved oxygen (>7.8 mg/L).
⚡ Push: Live on Egress
Last Cast: Drift #42 • Max Depth: 1.62m • Surface Temp: 16.4°C • Target Hit: 1.48m in 2.8s
Optimal Strike Depth
1.40 m - 1.65 m
Thermal preference match (14.2°C)
Prime Feeding Window
16:15 - 18:30
Dusk insect emergence + Baro drop
Fish Visual Range (Clarity)
2.6 meters
Snell's Cone: 2.8m diameter @ 1.5m
Bite Trend Forecast
🟢 SURGING / PEAK
Falling barometer (-1.4 hPa/3h)
Presentation Drag Score
96% Dead-Drift ⭐
Lateral Shear: ±0.02g (Seam Synchronous)

🌡️ Discrete Water Column Thermocline Strata

Real-time temperature and clarity readings mapped by depth layer during the drift:

Depth Layer Water Temp Relative Clarity Feeding Suitability

🧭 Recommended Fan-Casting Sectors

Optimal casting angles to cover holding lies based on fish visual range:

Primary: 35° Upstream Dead-Drift • Swing: 85° Cross-Current
Keeps leader outside fish's 2.6m sight cone to avoid lining.
🏹

Casting Telemetry & Launch Acceleration Engine

High-frequency tri-axial accelerometer capture showing initial line launch acceleration, release velocity, ballistic distance, and false cast cadence learning.

⚡ Initial Launch Acceleration 9.4 G 92.2 m/s² instantaneous impulse
💨 Line Release Velocity 34.2 m/s 76.5 mph • Calculated from ∫ a dt
⏱️ False Cast Cadence / Tempo 0.42s ➔ 0.68s ➔ 0.98s 3 False Casts • +62% / +44% time expansion
🎯 Aerialized Line / Est. Distance 28.5 meters 31.2 yd • Carry: 22.4m + 6.1m shoot
FLY CASTING CADENCE: ACCELERATION IMPULSES & LOOP UNROLL TIMING (G vs TIME)
Sample Rate: 400Hz Accelerometer • Precision: ±0.01G
0.0s (Start of Stroke) ━━ Acceleration Profile (G) • ┆ Direction Change Impulses • ▧ Cadence Interval Δt 3.2s (Line Delivery / Splashdown)
Logistics & Account Tier

Orders, Shipping & Label Printing

Track live international DHL dispatches, inspect provisioned hardware serial numbers, and print thermal 4x6" shipping labels.

Hardware Orders & Shipments

Carrier Integration: DHL Express International Worldwide
Order # Date Customer Allocated Serials Carrier & Tracking Status Actions
Zero-Knowledge Ownership Protocol

Claim or Transfer Nymph Node

Pair your physical hardware using the Serial Number + Unique Link Code printed on your packaging card.

🌊 Streamside Angler Protection • Inclusive Ownership Architecture

Never Stops You Fishing On The Water

From the moment a NymphNode touches water, you receive an uninterrupted 30-day grace period. Registration notifications are automatically delayed by 72 hours so anglers are safely back home before receiving prompts. If an angler chooses not to claim their node, or uses a second-hand, borrowed, or cloned device, the device is NEVER bricked on the water. A non-intrusive prompt appears which can be dismissed anytime with a simple "Claim Later / Clear" button—empowering students, low-income anglers, and novices to fish without barriers.

Grace Window Status
Day 4 of 30 (Active)
72h Water Notification Delay Active
Ready to verify cryptographic token...
Zero-RTC & Offline Geospatial Architecture

Offline GPS Pinning & Store-and-Forward Sync

Reconstructs exact sub-millisecond atomic UTC timestamps and locks immutable hardware satellite GNSS coordinates even when completely off-grid with zero cell/Wi-Fi signal.

Streamside Hardware GNSS Fix (Off-Grid)
Melkbosstrand Beach • Western Cape, South Africa
📍 -33.7142° S, 19.1825° E • Alt: 420.5m • Acc: ±2.4m • 12 Sats (3D GNSS Fix)
STORE-AND-FORWARD READY
Ready
Record # Raw Hardware Tick (T_sample) Offset from Sync (dt) Reconstructed Atomic UTC Time Depth Temp Turbidity Kinematic |a| GPS Location Pin
Brand Architecture

Concept 1: The Sovereign Nymph

Flagship master emblem embodying heraldic mayfly anatomy and glowing telemetry core.

NYMPH
The Horology of Hydrodynamics
Enterprise Telemetry & Fleet Operations

Enterprise Fleet & Telemetry Catch Logs

Inspect registered user fleets, modify MongoDB TTL data retention policies inline, and export scientific telemetry datasets (RFC-4180 NymphNode CSV).

Fleet Active Anglers
1,000 +14% mo
~25k drift sessions / yr
Annual Fleet Storage
9.0 GB / yr
MongoDB Atlas Free M0 • Flex Tier
Infrastructure SaaS Margin
99.3%
Storage cost < 0.7% of ARR
NymphNode Telemetry Protocol
RFC-4180
Microsecond Geotagged Binary

Registered Anglers & Hardware Fleet

Manage customer accounts, inspect provisioned nodes, and edit MongoDB TTL Data Retention policies inline.

Angler Name Account & Email Provisioned Nodes Subscription Data Retention Policy Points Logged Status

NymphNode Telemetry Export & Catch Records

Filter sub-surface drift sessions by date range and target species, then download a standardized NymphNode hydrological telemetry CSV.

SessionID Timestamp (UTC) Depth (m) Temp (°C) Turbidity (NTU) Drag Index Latitude / Longitude Species Target Terminal Tackle / Fly Retained

Manual Telemetry Entry

Append calibrated streamside ground-truth readings directly into the telemetry queue. Row confirms with green highlight upon insertion.

🏆 Streamside Catch Logbook & Trophy Gallery

Ground-truth catches recorded with sub-surface water depth, water temperature, clarity, terminal rig, and streamside photo verification.

Photo Catch ID Timestamp Species Length & Weight Depth Temp Terminal Rig GPS Location Action

🏹 Dedicated Cast Logs & Acceleration Registry

Independent casting telemetry recording launch acceleration impulse, release speed, false-cast cadence expansion, and carry distance. Stored and managed separately from fish catch records.

Cast ID Timestamp Discipline Launch Accel (G) Line Speed False Casts & Cadence (Δt) Aerial / Carry Distance Efficiency Action