BLE Spy vs UDevice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLE Spy
This utility allows users to discover, connect to, and interact with Bluetooth Low Energy devices. It offers standard features for browsing services and characteristics, alongside smart capabilities for customizing UUIDs and formatting data with JavaScript.
- Discover BLE devices
- Connect to multiple peripherals
- Browse services and characteristics
- Read and write characteristic values
- Log and export data to CSV
- Customize UUIDs
- Format characteristic data with JavaScript
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A professional utility to examine and control Bluetooth Low Energy devices. Apart from standard features BLE Spy has some unique capabilities in particular for developers. Standard features: • Find all Bluetooth Low Energy devices around you • Sort devices by name or rssi • Connect to multiple peripherals at the same time • Browse services and characteristics • Read and write characteristic values • Register for Notifications, log data and export to CSV Smart features: • Replace vendor specific UUIDs with a descriptive name • Add a description for characteristics • Format characteristic data with JavaScript BLE Spy requires iOS 11.
UDevice
This app offers a comprehensive suite of developer and testing tools. It includes network utilities like HTTP(s) capture and DNS parsing, alongside system information and file management capabilities. Ideal for development, testing, and device management.
- HTTP(s) Capture/Rewrite
- SSH and Terminal access
- Python3 interpreter
- Cookie editing
- Network utilities (Ping, DNS, Traceroute, Port Scan)
- File manager
- Device fingerprinting and system info
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Make device debugging, network diagnostics, and security research more efficient. The app includes a rich set of professional tools covering network packet capture, request rewriting, SSH, local terminal, Python 3, file management, cookie editing, log analysis, JSON formatting, regular expressions, Ping, DNS lookup, Traceroute, port scanning, LAN scanning, and more. You can also view real-time device status and key system information, including CPU, system, network, memory, display, browser environment, and other device data, helping you quickly understand the current state of your device. Whether for development debugging, testing and troubleshooting, security research, or daily device management, everything can be done in one app.
Screenshots
Verdict
The clearest difference is monetization model: UDevice at free against BLE Spy's paid. UDevice also leads on update cadence (every 3 weeks vs every 8 months) and review sentiment (78% vs 50%). BLE Spy's advantage is rating (4.8 vs 4.4) and iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
BLE Spy costs $4.99 and UDevice $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BLE Spy holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: UDevice has 36 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 50% of BLE Spy's written reviews are positive against 78% of UDevice's, so the app with the better star average is not the one people write more warmly about.
BLE Spy ships an update every 8 months, UDevice every 3 weeks. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | BLE Spy | UDevice |
|---|---|---|
| Price | $4.99 | $4.99 |
| Rating | 4.8 (4 ratings) — better | 4.4 (36 ratings) |
| Positive reviews | 50.0% of reviews | 78.1% of reviews — better |
| Number of ratings | 4 | 36 — better |
| Update frequency | Every 8 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #96 | #25 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 10 MB | 159 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Gasche | Gansu Zhenxian Network Technology Co., Ltd. |
Customer experience
BLE Spy
UDevice
In-app purchases
BLE Spy
No in-app purchases
UDevice
No in-app purchases
