DriftWatch vs Savvy Navvy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DriftWatch
This navigation app helps boat captains sleep soundly by monitoring anchor drift. It uses your device's GPS to alert you if your vessel moves outside a set boundary, providing peace of mind while at anchor.
- Anchor drift monitoring
- GPS boundary alerts
- Audible alarms
- Battery level monitoring
- Simple and easy to use
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DriftWatch is a captain's best friend for a good night of sleep. Often the captain sets anchor for the night and keep waking up regularly to confirm that the anchor is still preventing the boat from drifting. Some boats/yachts have anchor alarm on their GPS system. Unfortunately, it is not rare that the integrated GPS system is inaudible from the captain's bed. With DriftWatch running on your IOS device, you can have it near your bed and be confident that it will warn you if you drift outside of the established boundary. DriftWatch is the perfect complementary mean that provides peace of mind when anchored. DriftWatch is simple and easy to use. --------------------------------------------------------------------------------------------- Note: Your IOS device should be connected and charging when using DriftWatch for an extended period of time either as a foreground or background application. The application keeps monitoring your location using the device's GPS which drains the battery faster than normal. Fortunately DriftWatch monitors your battery level and alerts you when a certain battery level is reached when unplugged.
Savvy Navvy
This marine navigation app simplifies charts, weather forecasts, tides, GPS tracking, and route planning for boaters. It offers smart routing, real-time GPS, and AIS data to help users make safer, smarter decisions on the water.
- Clutter-free marine charts
- Smart route planning with ETAs
- Real-time GPS tracking
- Departure scheduler
- AIS data for collision avoidance
- Marine weather forecasts
- Tide and current data
- Marina and anchorage information
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Savvy Navvy: Your All-in-One Marine Navigation App Savvy Navvy is the ultimate marine navigation tool that simplifies charts, weather forecasts, tides, GPS tracking, and route planning—right in the palm of your hand. Whether you're out sailing, fishing, or cruising, we take the stress out of navigation, so you can enjoy your time on the water. From smart routing to real-time GPS positioning and marine weather forecasts, savvy navvy helps you make safer, smarter decisions on the go. Navigate confidently, with up-to-date weather, tide information, and AIS data that keeps you clear of other vessels. Why Choose Savvy Navvy? Clutter-Free Charts: No more messy, hard-to-read charts. Our clean, intuitive design helps you map your route with ease, making every journey more enjoyable. Smart Route Planning: Plot your course effortlessly. Savvy Navvy calculates the best route, factoring in weather, tides, and depth. Plus, you get accurate ETAs so you can plan every detail of your trip. Real-Time GPS Tracking: Keep track of your location on the water with built-in GPS, so you always know where you are—and where you're heading. Departure Scheduler: Pick the perfect departure time by considering weather, tides, and daylight. Avoid rough seas and ensure a smoother ride. AIS Data for Safety: Stay safe with real-time AIS (Automatic Identification System) data that shows nearby vessels, helping you avoid collisions. Marine Weather Forecasts: Get ahead of the weather with detailed forecasts, including wind speed, swell, and visibility. Navigate safely, no matter the conditions. Tides and Currents: Access real-time tide and current data for safer passage, integrated directly into your charts. Marina and Anchorage Info: Find marinas and anchorages with ease. Whether you need fuel, supplies, or a safe place to dock, we’ve got you covered. Who’s Savvy Navvy For? Sailors: Plan routes with tools that account for wind, tides, and depth. Powerboaters: Navigate confidently with GPS and AIS tracking, plus estimate fuel needs for any trip. Fishermen: Get precise marine weather forecasts, schedule your trips, and mark your favorite fishing spots. Jetskiers, Kayakers, and Paddleboarders: Enjoy your adventures with reliable charts and GPS tracking. Why Trust Savvy Navvy? With over 2 million downloads and multiple marine innovation awards, Savvy Navvy is trusted by boaters around the world. We use official, regularly updated hydrographic data and live weather from top sources, ensuring you’re always equipped with the most accurate information. We listen to our users, constantly improving the app based on their feedback. Each update reflects real boater needs, making sure your experience on the water gets better with every trip. Why We're Different Unlike other navigation apps, savvy navvy lets you sync routes across up to five devices, making it easy to stay connected. Try our free version and explore all features before upgrading. Download Savvy Navvy today and explore the waters with confidence! Read our terms of service here: https://www.savvy-navvy.com/terms-of-service
Screenshots
Verdict
The clearest difference is update cadence: Savvy Navvy at weekly against DriftWatch's every 12 months. Savvy Navvy also leads on chart position (#58 vs unranked) and iOS requirement (15.0 vs 17.4). DriftWatch's advantage is review sentiment (67% vs 53%). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. DriftWatch sells 3 in-app purchases, starting at $3.99 per year and Savvy Navvy sells 6 in-app purchases, starting at $99.00 per year. Whichever you choose, the download price is not the number that matters.
DriftWatch ships an update every 12 months, Savvy Navvy weekly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.
| Parameter | DriftWatch | Savvy Navvy |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (8.4K ratings) — better |
| Positive reviews | 66.7% of reviews — better | 53.2% of reviews |
| Number of ratings | — | 8.4K — better |
| Update frequency | Every 12 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | — | #58 — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 85 MB | 153 MB |
| Age rating | 4+ | +4 |
| Developer | Rene Dacier | savvy navvy |
Customer experience
DriftWatch
Savvy Navvy
Bugs and requests
DriftWatch
Not enough reviews yet to summarise bugs or requests.
Savvy Navvy
Reported bugs
4 issues- App freezes or becomes unresponsive
- Inaccurate weather and tide information
- Issues with syncing data across devices
- Problems with downloading charts and maps
Requested features
5 requests- Add more chart coverage for different regions
- Improve route planning and navigation features
- Allow offline use without internet connection
- Integrate with other boating apps and devices
- Provide more customization options
In-app purchases
DriftWatch
- Remove Time Limit3 Days trial$3.991 Year
- 24H Wind Forecast3 Days trial$9.991 Year
- 24H Wind Forecast.3 Days trial$9.991 Year
Savvy Navvy
- Premium (US-only charts)3 Days trial$99.001 Year
- Premium3 Days trial3 variants$99.001 Year
- Premium (US-only charts)3 Days trial2 variants$129.001 Year
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- Premium (US-only charts)14 Days trial$129.001 Year
- Premium Plus (global charts)3 Days trial2 variants$169.001 Year
- Premium Plus (global charts)14 Days trial$169.001 Year









