Lake Genius is a boating app purpose-built for the needs of lake boaters. Daily underwater hazard updates, water level tracking, 2,000+ curated points of interest, trip planning from home, and offline maps that work where cell service doesn’t.
Every feature is included in one subscription. No add-ons, no tiered plans, no surprises.
Download Free — Try Every Feature With a Free Trial
Lake Genius’s signature feature. Zoom into any area of the lake and a simulated X-Ray View reveals the underwater terrain beneath the surface — rocks, ledges, and hazards within 9 feet of the waterline. Updated daily, so you’re always seeing today’s conditions. No other boating app does this for the lakes we cover.
Water levels change constantly, and what was safe last month might not be safe today. Lake Genius tracks water levels daily and displays the current shoreline in red on your map. Tap the water level button to see the exact reading in feet or meters.
Most of the lakes we cover have limited or zero cell service once you’re on the water. Download your maps before you go and the app works fully offline — X-Ray View, POI markers, saved routes, and more. No signal needed.
Marinas, fuel docks, slot canyons, petroglyphs, hiking trailheads, swimming spots, fishing locations, and more — all curated by the Lake Genius team. Not crowdsourced, not user-generated. Our markers are vetted by people who know these lakes.
Plan your route from home before your trip. Mark stops, estimate travel time and distance, track your GPS route on the water, and save unlimited routes for future visits.
Snap a photo of a cove, rock formation, or fishing spot and the app pins it to your map. Enter a distance or tap the map to set the marker’s exact position in the direction your camera was pointing.
Drop unlimited custom markers on the map. Name them, choose an icon, and they’re saved permanently. Share your spots with friends and family via text message.
One-tap access to NOAA weather data for any point on the lake. Check conditions, wind, temperature, and precipitation before heading out or while you’re on the water.
Send your GPS coordinates to friends, family, or marina staff with one tap via text message. Useful for meetups, raft-ups, and coordinating on the water.
There are a few ways boaters typically try to navigate the lakes we cover. Here’s how they stack up.
Daily underwater hazard updates
Daily water levels
Lake-specific POI (curated)
Offline maps
Trip planning from home
Route saving & sharing
Built for these specific lakes
Lake Genius isn’t trying to be everything for every boater everywhere. It’s built specifically for the lakes we know and love — with daily data updates, curated local knowledge, and features designed for how people actually use, enjoy, and navigate these lakes.
Every feature in Lake Genius is built around the specific conditions, hazards, and destinations of the lakes we cover. More lakes are being added! Here’s where you can use the app today.
Ninety-six canyons, 2,000 miles of shoreline, and constantly shifting water levels. Lake Powell is where the X-Ray View matters most. Explore the full Lake Powell experience.
Well-documented water level changes have reshaped the underwater landscape. Hazards that were deep underwater years ago now sit near the surface. See what Lake Genius offers at Lake Mead.
Smaller and calmer, but the turquoise water and family-friendly beaches draw boaters all summer. Lake Genius covers underwater terrain, POI, and trip planning here too.
Over 1,600 feet deep in places, with underwater terrain that changes fast near shore. Tahoe straddles the California-Nevada border and draws boaters year-round. Lake Genius maps both sides with the X-Ray View, comprehensive points of interest, and daily water level tracking.
The longest lake in Washington stretches 150 miles behind Grand Coulee Dam, with remote arms and canyons that see very little traffic and almost no cell coverage. Lake Genius provides comprehensive POI, offline maps, and daily hazard updates built for boaters well beyond the main channel.
Phoenix boaters know the drill — summer heat means water levels that move fast, and what was deep last weekend might not be next. Lake Genius tracks Lake Pleasant daily with the X-Ray View, comprehensive POI, and offline-ready maps.
More lakes are on the way. Download the app and you’ll get access to new lake coverage as it’s released — no additional cost.
Every feature on this page is included in a single subscription. No feature tiers, no in-app purchases, no hidden costs.
Start with a free trial — full access to every feature, no credit card required. If it solves your problem, it’s $19.99/year.
Start Your Free Trial — Download on App Store · Google Play
Per Year
I was happy to find an affordable electronic option when I learned of Lake Genius, so downloaded it and subscribed prior to our trip in mid-October 2025. Looking at the app at home I was impressed with the amount of detail concerning elevations and landmarks. In use on the lake, I had a hard time finding a zoom level that would show me both buoy locations and enough elevation / depth information to be useful while underway, but recent updates have fixed that. We found the app very useful overall and a great value.
— DonJ60
Thank you for an awesome app to help with boating —especially with Lake Powell newbies like us. Heck, even my long time Lake Powell buddies thought this was amazing.
— Mxracer317
Such a great way to spot underwater hazards easily on your phone. Saves you a lot of hassle and money from hitting your prop on a rock!
— Liv.ballam
Every feature is included in one subscription: the X-Ray View for underwater hazard detection, daily water levels, 2,000+ curated points of interest, trip planning and route tracking, photo markers, custom spot saving, weather info, location sharing, and full offline maps. No add-ons or feature tiers.
Most features work fully offline once you’ve downloaded your maps. The X-Ray View, POI markers, saved routes, trip planning, photo markers, and saved spots all work without a signal. Weather info and water level updates require an internet connection when accessed.
Yes. Lake Genius offers a free trial with full access to every feature – no credit card required. Download the app, explore the map, check out the X-Ray View, and see if it works for you.
Yes. Lake Genius is available on both the Apple App Store (iOS) and Google Play Store (Android). Download on either platform and start your free trial.
Lake Genius is purpose-built for the specific lakes it covers. The app updates underwater hazard data daily — not monthly, not quarterly. Points of interest are curated by our team, not crowdsourced. And every feature works offline, which is critical for lakes with limited cell coverage.