# Fi vs Effe ECC

The clearest difference is update cadence: Fi at weekly against Effe ECC's every 4 months. Effe ECC's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fi ships an update weekly, Effe ECC every 4 months. The most recent releases landed on October 17, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Fi | Effe ECC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (42K ratings)](https://appshunter.io/ios/app/fi-gps-dog-tracker/id1438036784/reviews)** | — |
| Number of ratings | **42K** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Monetization | Free | — |
| Size | 197 MB | 16 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Barking Labs Corp.](https://appshunter.io/developer/1002251935) | [EFFEGIBI](https://appshunter.io/developer/914420304) |

## 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)


### Effe ECC

[App page](https://appshunter.io/ios/app/effe-ecc/id1481172358)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fi free?

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

### Is Effe ECC free?

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

### Do Fi or Effe ECC have ads?

Neither Fi nor Effe ECC shows ads.

### Which is updated more often, Fi or Effe ECC?

Fi ships an update weekly, and Effe ECC every 4 months. Most recently, Fi was updated on October 17, 2026 and Effe ECC on October 1, 2026.

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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.*