# Fi vs Hydra Drink Tracker

The clearest difference is in-app purchases: Fi at none against Hydra Drink Tracker's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Hydra Drink Tracker sells 2 in-app purchases, starting at $9.99 per year. Fi asks for nothing beyond the download.

## The numbers

| Metric | Fi | Hydra Drink Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (42K ratings)](https://appshunter.io/ios/app/fi-gps-dog-tracker/id1438036784/reviews)** | — |
| Number of ratings | **42K** | — |
| Positive reviews | 37.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free | — |
| Size | 199 MB | 55 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Barking Labs Corp.](https://appshunter.io/developer/1002251935) | [Diana Plantic Tadic](https://appshunter.io/developer/1887419753) |

## What reviewers say

### Fi

[App page](https://appshunter.io/ios/app/fi-gps-dog-tracker/id1438036784)

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.

**Highlights:** Real-time GPS tracking, Geofencing and escape alerts, Activity and health monitoring, AI behavior insights, Lost Dog Mode, Long battery life, Apple Watch integration

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate GPS tracking
- 🔒 Provides peace of mind
- 👍 Helpful customer service
- 🚀 Long battery life
- 👍 Waterproof collar

**What reviewers complain about**

- 🐛 Inaccurate GPS location
- 🔋 Battery drain issues
- 🐛 Unreliable connectivity
- 👎 Intrusive notifications
- 👎 Difficult to cancel subscription

**Reported bugs**

- Collar stops working unexpectedly
- App glitches and crashes
- GPS tracking lags or shows incorrect locations

**Requested features**

- Customizable notification settings
- Offline step/distance tracking
- Ability to edit/delete activity data
- More accurate geofencing options
- Integration with other apps (e.g. Wag)


### Hydra Drink Tracker

[App page](https://appshunter.io/ios/app/hydra-drink-tracker/id6784717246)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hydra Yearly | $9.99 | per year |
| Hydra Premium Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Fi free?

Fi is free to download, with no in-app purchases.

### Is Hydra Drink Tracker free?

Hydra Drink Tracker is free to download, with in-app purchases available.

### Do Fi or Hydra Drink Tracker have ads?

Neither Fi nor Hydra Drink Tracker shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*