# Fing vs Duo

The clearest difference is rating: Fing at 4.6 against Duo's 3.7. Fing also leads on update cadence (every 4 weeks vs every 31 months) and ratings volume (117K vs 7). Duo's advantage is in-app purchases (none vs 7) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Fing sells 7 in-app purchases, starting at $0.99 per 3 months. Duo asks for nothing beyond the download.

Fing holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: Fing has 117K ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 56% of Fing's written reviews are positive against 80% of Duo's, so the app with the better star average is not the one people write more warmly about.

Fing ships an update every 4 weeks, Duo every 31 months. The most recent releases landed on October 28, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Fing | Duo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (117K ratings)](https://appshunter.io/ios/app/fing-network-scanner/id430921107/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/duo-r/id687226229/reviews) |
| Number of ratings | **117K** | 7 |
| Positive reviews | 56.4% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 weeks** | Every 31 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#172** | — |
| Size | 249 MB | 9 MB |
| Requires iOS | 16.4 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fing Limited](https://appshunter.io/developer/1418008243) | [Page One Co., Ltd.](https://appshunter.io/developer/531286086) |

## What reviewers say

### Fing

[App page](https://appshunter.io/ios/app/fing-network-scanner/id430921107)

**Currently charting:** #172 Top Free · Productivity (US App Store)

Identify all devices on your WiFi network to understand who is connected, check for security threats, and troubleshoot network issues. It offers tools for speed testing, device analysis, and security alerts, with advanced features available through an optional hardware add-on.

**Highlights:** Network scanning and device discovery, Device identification (IP, MAC, vendor), Internet speed testing, Network security alerts, Port scanning and DNS lookup, Advanced device analysis

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Months Ads-free | $0.99 | per 3 months |
| 6 Months Ads-free | $1.49 | per 6 months |
| 1 Year Ads-free | $2.49 | per year |
| Starter 1 Month | $3.99 | per month |
| Premium 1 Month | $7.99 | per month |
| Starter 1 Year | $39.99 | per year |
| Premium 1 Year | $69.99 | per year |

**What reviewers like**

- 🚀 Great app
- 🔒 Helpful for network security
- 👍 Excellent network utility
- 👍 Easy to use and informative
- 👍 Useful for network troubleshooting

**What reviewers complain about**

- 🐛 Buggy and unreliable
- 🔒 Privacy concerns with data collection
- 💰 Aggressive push for paid subscription
- 🔋 High battery consumption
- 🤔 Confusing UI changes

**Reported bugs**

- Frequent crashes and freezes
- Inconsistent device detection across platforms
- Speed test functionality not working
- Saved device settings not persisting
- Notifications not working as expected

**Requested features**

- Add option to disable ads
- Improve device identification and naming
- Restore ability to view MAC addresses
- Enhance port scanning capabilities
- Add option to select speed test server


### Duo

[App page](https://appshunter.io/ios/app/duo-r/id687226229)

This app allows remote control of a teleprompter application via Wi-Fi. It enables playback, pausing, speed adjustments, and cue management for seamless script delivery. Requires Prompter Duo version 1.3.0 or higher.

**Highlights:** Remote Play/Pause, Speed Control, Fine-tune Speed, Scroll Position Display, Jump to Cue Point, Cue Management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fing free?

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

### Is Duo free?

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

### Which has better reviews, Fing or Duo?

Fing is rated higher. Fing averages 4.6 out of 5 from 117K ratings, while Duo averages 3.7 from 7 ratings.

### Do Fing or Duo have ads?

Fing shows ads; Duo does not.

### Which is updated more often, Fing or Duo?

Fing ships an update every 4 weeks, and Duo every 31 months. Most recently, Fing was updated on October 28, 2026 and Duo on October 23, 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.*