# Spyf vs Sysly

The clearest difference is ads: Sysly at none against Spyf's shown. Sysly also leads on update cadence (monthly vs every 5 months). Spyf's advantage is iOS requirement (16.0 vs 26.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Spyf sells 4 in-app purchases, starting at $8.99 per 7 days and Sysly sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Spyf ships an update every 5 months, Sysly monthly. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Spyf | Sysly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/spyf-hidden-device-detector/id6747833847/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 49 MB | 38 MB |
| Requires iOS | **16.0** | 26.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sarah Davis](https://appshunter.io/developer/1823043379) | [hamam alabdulla](https://appshunter.io/developer/1562896225) |

## What reviewers say

### Spyf

[App page](https://appshunter.io/ios/app/spyf-hidden-device-detector/id6747833847)

Scan your surroundings for wireless activity and hidden electronics. Detect nearby Wi-Fi and Bluetooth devices, and use your phone's camera for infrared scanning to enhance privacy in public spaces. Review scan history to track changes over time.

**Highlights:** Wi-Fi and Bluetooth scanning, Infrared scanning with phone camera, Real-time monitoring, Device history and saved results, Ad-free Pro experience, IP tracking

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hidden Device Detector App · | $8.99 | per 7 days |
| Hidden Device Detector App · | $8.99 | per 7 days |
| Hidden Device Detector App · | $14.99 | per month |
| Hidden Device Detector App · | $15.99 | per month |


### Sysly

[App page](https://appshunter.io/ios/app/sysly/id6808439334)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sysly Pro | $9.99 | one-time |


## Frequently asked questions

### Is Spyf free?

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

### Is Sysly free?

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

### Do Spyf or Sysly have ads?

Spyf shows ads; Sysly does not.

### Which is updated more often, Spyf or Sysly?

Spyf ships an update every 5 months, and Sysly monthly. Most recently, Spyf was updated on October 7, 2026 and Sysly on October 18, 2026.

---

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