# Fi vs ErgForge

The clearest difference is in-app purchases: Fi at none against ErgForge's 1. ErgForge's advantage is update cadence (every 3 days vs weekly) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. ErgForge sells 1 in-app purchase, starting at $4.99 per month. Fi asks for nothing beyond the download.

Fi ships an update weekly, ErgForge every 3 days. The most recent releases landed on October 26, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Fi | ErgForge |
| --- | --- | --- |
| 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 | **Every 3 days** |
| Monetization | Free | — |
| Size | 199 MB | 35 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Barking Labs Corp.](https://appshunter.io/developer/1002251935) | [MICHAEL JOHN CHIDLEY](https://appshunter.io/developer/6796773834) |

## 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)


### ErgForge

[App page](https://appshunter.io/ios/app/ergforge/id6796773832)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ErgForge Pro Monthly | $4.99 | per month |


## Frequently asked questions

### Is Fi free?

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

### Is ErgForge free?

ErgForge is free to download, with in-app purchases available.

### Do Fi or ErgForge have ads?

Neither Fi nor ErgForge shows ads.

### Which is updated more often, Fi or ErgForge?

Fi ships an update weekly, and ErgForge every 3 days. Most recently, Fi was updated on October 26, 2026 and ErgForge on October 11, 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.*