Fi vs FluidLogic®
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fi
This app pairs with a smart collar to provide real-time GPS tracking for your dog. Monitor their activity, health patterns, and receive alerts if they leave designated safe zones. It offers peace of mind for pet owners by keeping them connected to their canine companions.
- Real-time GPS tracking
- Geofencing and escape alerts
- Activity and health monitoring
- AI behavior insights
- Lost Dog Mode
- Long battery life
- Apple Watch integration
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Fi Series 3+ is the world's smartest GPS dog collar—now powered by AI. Paired with a Fi collar, the Fi app brings you even closer to your dog. Track their location, monitor activity and health patterns, and get alerts if they ever leave a safe zone. It's peace of mind for the best pet parents out there. FEATURES GPS TRACKING On vacation? Friend walking the dog? Instantly track your dog's location no matter where they are. Fi gives you the confidence to know they're safe from anywhere, anytime. STOP ESCAPE ARTISTS Designate safe zones around your home or dog's favorite places. If they leave without a trusted person, we'll alert you immediately. So if they wander anywhere, you'll be the first to know. ACTIVITY MONITORING Track your dog's step count daily and start streaks by achieving custom goals you set. Then see how they compare with similar dogs in the Fi community. Every step goes a long way toward keeping them happy and healthy. AI BEHAVIOR INSIGHTS Fi Series 3+ tracks more than just steps. Spot trends in activity, rest, scratching, licking, drinking, eating, and barking so you can stay in tune with your dog's health and habits, every day. LOST DOG MODE Never lose track again. If your dog goes missing, activate Lost Dog Mode to turn on rapidly refreshing live location updates until they're found. BATTERY LIFE With best-in-class battery, our collars lasts up to 3 months on a single charge. No other collar even comes close. SUPPORT Need help? We're here for you and your dog. Our support team is just a chat or phone call away when you need. APPLE WATCH INTEGRATION With our all new Series 3+, you can view your dog's location and activity directly on your wrist, so you're always connected, even without your phone. OUR COLLAR Available in 4 different colors and 5 different sizes to fit dogs of all sizes. Fi works best when connected near a Bluetooth connected device with the Fi App or the provided charging base. The latest iOS version is required to run Fi. Learn more about what we're building at: www.tryfi.com.
FluidLogic®
This app provides a personalized, science-backed hydration plan to optimize performance and recovery. It works with a smart hydration pack to track intake, offer haptic reminders, and allow for on-demand water delivery.
- Personalized hydration protocol
- Customizable dose and interval settings
- Haptic hydration reminders
- Remote push-to-drink control
- Real-time tracking and insights
- Seamless system integration
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The FluidLogic app is the key to unlocking the full potential of Active Hydration™, a personalized, science-backed approach to staying hydrated. Designed to work seamlessly with the FluidLogic GPR50 Hydration Pack, the app combines science, technology, and convenience to ensure optimal hydration when it matters most. Download the app today and transform how you hydrate, ride, and recover. ** What The FluidLogic System Can Do for You ** Predictive Hydration, Powered by Science FluidLogic uses proprietary algorithms to estimate your sweat loss based on biometrics, activity intensity, temperature, and humidity. The app provides a personalized hydration plan to keep you optimally hydrated. Smart Hydration Tracking & Insights Monitor your hydration efforts in real-time and review post-ride summaries to improve performance and recovery. Track the amount you drink, hydration performance, and trends over time. Haptic Reminders & Push-to-Drink Control Stay on track with haptic reminders at personalized intervals so you drink at the right time. Use the FluidLogic remote button to trigger precise water doses, eliminating distractions while riding. Effortless Water Delivery & Ergonomic Design The FluidLogic system ensures easy, on-demand hydration. It features a wireless remote button and a magnetic quick-connect system that seamlessly integrates into your ride. No fumbling with hoses—just press the button and drink. ** Key Features ** - Personalized hydration protocol based on proprietary sweat loss factors. - Customizable hydration dose and interval settings. - Haptic hydration reminders to keep you on track. - Remote push-to-drink button for seamless water delivery. - Real-time hydration tracking and post-ride insights. - Full system control and support through the app. ** The FluidLogic System ** FluidLogic is a fully integrated hydration solution combining smart technology and performance-driven gear: 1.) FluidLogic Active Hydration App – Predicts sweat loss, customizes hydration plans, and tracks your progress. 2.) FluidLogic GPR50 Pack – Featuring a battery-powered pump delivering water on demand. 3.) FluidLogic Remote Button – A wireless trigger to dispense precise water doses with the press of a button. 4.) FluidLogic Helmet Kit – A magnetic quick-connect system routing water to your helmet for easy access. ** Why Choose FluidLogic? ** Whether you're a motocross racer, mountain biker, or endurance athlete, FluidLogic eliminates guesswork and optimizes hydration for peak performance. Stay hydrated, ride stronger, and recover faster. ** How it Works ** - Fill Your Pack: Load the FluidLogic GPR50 pack with up to 50 oz of water. - Connect: Turn on your pack and sync it with the app. - Set Your Hydration Plan: Customize your hydration dose and intervals based on predicted sweat loss. - Ride: Follow haptic reminders, press the button to drink, and let FluidLogic optimize your hydration. ** The Science Behind FluidLogic ** Optimal hydration is key to peak performance, but it’s harder to achieve than we think. Many riders believe they know how to hydrate, but the truth is that optimal hydration must be managed. FluidLogic’s proprietary algorithms consider your body, ride intensity, and environmental conditions to deliver the right hydration strategy. By delivering small, precise doses of water at regular intervals, FluidLogic helps your body absorb water efficiently, keeping you hydrated and performing at your best. Dehydration affects both mental and physical performance, but with FluidLogic, you can perform better for longer and recover faster—without the guesswork.
Screenshots
Verdict
The clearest difference is ratings volume: Fi at 42K against FluidLogic®'s 5. Fi also leads on update cadence (weekly vs monthly). FluidLogic®'s advantage is rating (5.0 vs 4.6) and iOS requirement (15.1 vs 17.0). 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. Neither carries in-app purchases, so what you see is what you pay.
FluidLogic® holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Fi has 42K ratings behind it against 5, so its average is the more settled of the two.
Fi ships an update weekly, FluidLogic® monthly. The most recent releases landed on October 27, 2026 and October 4, 2026 respectively.
| Parameter | Fi | FluidLogic® |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (42K ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 37.9% of reviews | — |
| Number of ratings | 42K — better | 5 |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 199 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Barking Labs Corp. | Fluidlogic, Inc. |
Customer experience
Fi
FluidLogic®
Bugs and requests
Fi
Reported bugs
3 issues- Collar stops working unexpectedly
- App glitches and crashes
- GPS tracking lags or shows incorrect locations
Requested features
5 requests- Customizable notification settings
- Offline step/distance tracking
- Ability to edit/delete activity data
- More accurate geofencing options
- Integration with other apps (e.g. Wag)
FluidLogic®
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Fi
No in-app purchases
FluidLogic®
No in-app purchases









