# Wayvz — Know Before You Go > Offline Lake Powell depth map with real-time water level updates for boating safety. (iPhone/iPad app by Douglas Hall.) - Source: https://appshunter.io/ios/app/wayvz/id6777600067 (this page in markdown: same URL + `.md`) - Developer: [Douglas Hall](https://appshunter.io/developer/6777600069) - Category: Navigation - Price: Free (on sale, was $0.99) - Rating: 5.00/5 from 4 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 123 MB - Languages: American English - Released: 2026-07-20 - Data updated: 2026-08-30 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/wayvz/id6777600067/reviews.md ## What is Wayvz? Wayvz keeps your eyes on the water, not on your phone. One glance tells you what's beneath your boat on Lake Powell — no menus, no numbers to decode, no chart to interpret. The map does the reading for you so you can focus on driving. Color is the whole language, and it means exactly one thing: depth. Deep water sits quiet in blue and stays out of your way. As the bottom rises toward you, the water warms through light blue to yellow, then orange, then red at the shallowest, most dangerous edges. You're not reading a number and doing math — you're seeing danger the way you'd see a stoplight. Red means shallow. Warm means caution. Blue means room to run. Everything else on the map is muted grayscale, so the only thing that pulls your eye is the thing that matters. Your position, your heading, and the depth right under you stay in view the whole time — so a single look tells you where you are, which way you're pointed, and how much water you've got. The entire lake is built in — Glen Canyon Dam to Hite, every arm and side canyon — and it works completely offline. Load it once, and you don't need a signal out on the water. HOW IT WORKS Wayvz pairs a detailed survey of the lakebed with the live surface elevation from the USGS gauge at Glen Canyon Dam. As the lake rises and drops through the season, the map recolors to match — so what you see reflects today's water level, not a fixed snapshot. FEATURES - Full Lake Powell coverage — dam to Hite, all major arms - Works fully offline once loaded - Live daily water level from USGS - Depth shown continuously beneath your boat - Clean grayscale map — color reserved for depth and hazards - Course-up view that follows you as you move - Weak-GPS warning when your signal drops in the canyons IMPORTANT — PLEASE READ Wayvz is a supplemental awareness tool, not a replacement for safe boating or primary navigation. The depths it shows are estimates, based on a survey of the lakebed and the current lake level — and they can be wrong. Rocks, debris, sediment, and other hazards can appear or shift without warning, and not everything shows on the map. In the upper reaches and inflow arms, depths may read deeper than they actually are. Always keep a lookout, watch the water ahead, and stay in control of your boat. Do not rely on Wayvz to avoid hazards. It's a guide — not a replacement for your own eyes. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Full Lake Powell coverage - Offline functionality - Live daily water level updates - Color-coded depth indicators - Course-up view - Weak GPS warnings ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/wayvz/id6777600067/reviews.md ### 5/5 — Intuitive *2026-07-22* Helpful app for the constantly changes depths of Powell! App is easy to use. Initial tutorial was quick and effective. ### 5/5 — Great App For Powell! *2026-07-21* I’m looking forward to spending more time at Powell and using this app more. So far for the south end of the lake it’s worked really well. ### 5/5 — Very smart app! *2026-07-21* This is just what serious boaters and adventurers need on large bodies of water like Lake Powell, especially with fluctuating water levels in more arid climates. I love this idea and it is extremely easy to use! ### 5/5 — Intuitive and accurate *2026-07-21* Really easy to use. Tracking on the lake is solid, even without cell coverage. Daily water levels and hazards are near real-time! ## Frequently asked questions about Wayvz ### What is Wayvz? Wayvz is a navigation app designed for boaters on Lake Powell. It provides a color-coded map showing water depth and works offline, updating daily with the latest water levels from the USGS. ### Does Wayvz work offline? Yes, Wayvz works completely offline once the map data for Lake Powell is loaded. This means you don't need a cellular signal while out on the water. ### How does Wayvz show depth? Wayvz uses a color-coded system where blue indicates deep water, and colors like yellow, orange, and red represent progressively shallower and potentially hazardous areas. This allows for quick visual interpretation of depth. ### Is Wayvz a primary navigation tool? No, Wayvz is intended as a supplemental awareness tool, not a replacement for safe boating practices or primary navigation. The depths shown are estimates and can be inaccurate. ### How often is Wayvz updated? The app's map recolors daily to reflect the live surface elevation from the USGS gauge at Glen Canyon Dam, ensuring the depth information is current. ### What devices support Wayvz? Wayvz is available for iPhone and iPad devices, indicated by its compatibility with these platforms. ### What is the age rating for Wayvz? Wayvz has an age rating of 4+, making it suitable for a wide range of users. ### Does Wayvz have ads? No, Wayvz is ad-free, meaning you can use the application without any advertisements interrupting your experience. ## Version history (last 3 releases) ### 1.4 (17) Labor Day Promo — 2026-08-14 First Month Free for new subscribers ### 1.1 — 2026-07-25 Added subscription groups, subscription gating to features, and a system to drop a pin and save a location or a warning ### 1.0 — 2026-07-20 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*