229+ iOS apps curated and reviewed
Orcas Flowmeter is the household name in orcas flowmeter, but it's far from the only option. We track 229+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.4★ (5) | No | No | Jul 2026 |
| 2 |  | Free | 4.7★ (6.3K) | No | Yes | Jul 2026 |
| 3 |  | Free | 4.7★ (31K) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 4.5★ (5.8K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.8★ (21K) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.7★ (5.4K) | Yes | Yes | Jul 2026 |
| 7 |  | Free | 4.4★ (4.4K) | Yes | Yes | Jul 2026 |
| 8 |  | Free | 4.8★ (8.8K) | No | Yes | Jul 2026 |
This application connects to an innovative sensor to measure fluid flow through pipes. It guides you through setup, displays real-time readings, and stores historical data. The app remembers location specifications for easy repeated measurements.
This app helps paddlers track their journeys with GPS, providing detailed session data, safety features, and integration with Apple Health. It offers route planning, live location sharing, and performance analysis for various water sports.
This app helps anglers find the best times and locations to fish by providing detailed forecasts for tides, moon phases, weather, and marine conditions. It offers interactive maps to discover and save fishing spots, track routes, and access offline nautical charts, along with a catch logbook and fishing regulations.
This app provides personalized swim and dryland workouts to help users improve speed, strength, and technique. It offers daily customized plans, expert coaching, and progress tracking for swimmers of all levels. Users can log swims, analyze performance metrics, and access technique drills.
This app provides comprehensive marine navigation tools, including worldwide chart coverage, weather forecasts, and AIS integration. It allows users to plan routes, track their position, and connect with onboard instruments for a complete boating experience.
Navigate waterways with detailed nautical charts, tide predictions, and weather forecasts. Connect with a community of boaters to share points of interest and track friends on the water. Enjoy simplified GPS navigation tailored to your boat's draft.
Transform your Apple Watch Ultra into a comprehensive dive computer for scuba, freediving, and snorkeling. Explore new locations with heatmaps, track your routes, organize underwater media, and share your adventures securely. Plan dives, monitor real-time data, and stay safe with advanced algorithms.
Follow the real-time movements of sharks, turtles, and other marine animals across the globe. Learn fascinating facts, explore migration patterns, and support ocean conservation efforts through interactive tracking data.
This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.
This app provides official, weekly updated nautical charts for marine navigation. It allows for offline map downloads, GPS track recording, and integration with onboard instruments. Enhance your boating safety and experience with advanced features like weather forecasts and AIS collision detection.
Monitor and manage your pulse rate, rhythm, blood pressure, and oxygen levels using your smartphone camera. Quickly check your heart rhythm and track vital signs for general health and wellbeing.
This app pairs with a wireless bobber to act as a portable fishfinder. It displays fish locations, depth, and water temperature on your smartphone or smartwatch. Log your catches, map underwater contours, and track your fishing trips.
This app acts as an underwater coach, providing real-time visual feedback through smart goggles to improve swimming technique and performance. It offers guided workouts, open water navigation, and detailed post-swim analysis, syncing data with popular fitness platforms.
Instantly view real-time tank levels on your smartphone, eliminating guesswork. Track usage history, receive low-level alerts, and easily request refills from your fuel supplier. Manage multiple tanks and share access with others.
Access detailed nautical charts and advanced boating features offline on your mobile device. Plan trips with dock-to-dock guidance, check weather and tides, and connect with a community of boaters. Ideal for cruising, fishing, sailing, and diving.
Unlock your phone's sensors for scientific exploration. Conduct pre-built experiments or create your own using accelerometers, magnetometers, and more. Analyze and export data in various formats for further study.
Monitor and manage your home's water usage with real-time data and leak detection. This app helps you understand your consumption, set budgets, and receive alerts to prevent costly water damage.
Navigate the waters with advanced marine charts, intelligent route planning, and real-time weather and vessel tracking. This app offers offline chart access and can integrate with hardware for a comprehensive boating experience.
This app provides remote monitoring and control of your boat's critical systems, including battery, bilge, and engine performance. It offers real-time location tracking with geofencing and security features like motion sensors and alarms. Enhance your boating experience with smart connectivity.
This app provides interactive tide graphs with over 10 billion predictions for US coastal stations. It also displays sunrise, sunset, moonrise, moonset, and moon phases. Save locations and graphs for easy access.