Comparison

BlueSpy vs ServerDoor

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

BlueSpy

This tool allows you to inspect, read, and write data with Bluetooth Low Energy devices. Explore device capabilities, analyze behavior, and understand security levels through real-time scanning and interactive features.

Highlights
  • Scan nearby BLE devices in real-time
  • Sort and filter peripherals
  • Identify device types and models
  • Read and write peripheral data
  • Explore communication logs
  • Configure custom settings
Features
Read full description

BlueSpy is the next generation BLE peripheral analyzer tool that allow you to inspect, read and write data with virtually any device capable of communicate with Bluetooth Low Energy standard and GATT profile. BlueSpy is an experimental tool that let you explore the capabilities of your nearby bluetooth devices and interact with them so that you can use it to: debug, analyze, measure or reverse engineering in the attempt to better understand their behaviour and their security level. BlueSpy is mostly a free tool, but in the effort to maintain and evolve it some features will only be availables under in-app purchase. Key Features: - Scan nearby device and return advertisment data in realtime. - Sort peripherals by name, identifier and signal strength. - Filter scanned peripherals. - Identify device type and model based on expandable knowledge base. - Read peripheral services, characteristics and descriptors. - Write data to peripheral characteristics. - Explore logs for any communication between BlueSpy and your BLE devices. - Configure custom settings like auto-notification, auto-remove unreachable peripherals, stop scan on idle, and more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ServerDoor

Features
Read full description

ServerDoor allows you to use your smartphone like a secure door for remote access to your personal server. A user-friendly session manager with a simple and intuitive interface, a full-featured terminal emulator that supports gesture control, as well as a tool for working with SSH keys - now all those thing can be placed in your pocket. Connect to your servers with using telnet and ssh protocols to administrate them in any situation anytime. Main advantages and functions: -The tool for working with SSH keys allows you to generate them, as well as to import and export them. RSA, DSA, EC, ED25519 keys are supported, and the openssh-key-v1 format is used to store them. -Thanks to the built-in password manager, you do not have to keep in mind the passwords for each server and key. The password database is stored on the device and encrypted with AES256-CBC using the master key. You can manage the password manager or disable it altogether in the settings. -Snippets system will be useful for advanced shell admins and can be used for make scripts those you can call from terminal session anytime. -Export and import app data features allows you exchange data between different devices or make backups anytime. -Convenient gesture control makes it possible to change the font size in the terminal by simply stretching instead of constantly switching to settings, and sticky scrolling allows you to quickly navigate even in the most voluminous sessions. • Advanced terminal emulator, supports most ESC sequences, SGR and utf8 encoding. • Additional keyboard and hot buttons, allow you to use most commands and keyboard shortcuts, as well as emulate mouse clicks in terminal applications. -Supports simultaneous operation of an unlimited number of running sessions, including in the background, when the application is minimized. -The ability to manually set a limit on the number of lines stored for each session (or disable the limit altogether), allows you to flexibly configure the device's memory consumption by running sessions. Whether you want to store the whole session or set a hard limit to save memory is up to you. -To save memory, session data is compressed and stored in a fragmented way, which allows you to turn off the limit and store even the most voluminous sessions without large buffer allocation errors. Tired of Telnet clients cutting HTTP responses without even allowing you to view the header? Then this app is for you!

Screenshots

BlueSpy4 screens
ServerDoor4 screens

Verdict

The call

BlueSpy and ServerDoor are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. BlueSpy sells 7 in-app purchases, starting at $0.99 per month and ServerDoor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BlueSpy ships an update fortnightly, ServerDoor every 8 days. The most recent releases landed on September 8, 2026 and August 15, 2026 respectively.

ScorecardNo meaningful differences
BlueSpy versus ServerDoor: the parameters behind the verdict, then further details
ParameterBlueSpyServerDoor
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyFortnightlyEvery 8 days โ€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesโ€”
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS16.0 โ€” better16.2
Further details โ€” not scored
Size4 MB4 MB
Age rating4+4+
DeveloperGiuseppe MazzilliOleg Gutlyanskiy

In-app purchases

7 purchases

BlueSpy

Subscriptions3
  • Bronze Membership$0.991 Month
  • Gold Membership$3.991 Month
  • Platinum Membership$4.991 Month
One-time4
  • Characteristic Write Feature$0.99
  • 1-Year Subscription$3.99
  • 2-Year Subscription$6.99
Show 1 more
  • 3-Year Subscription$8.99
1 purchases

ServerDoor

One-time1
  • Premium features$4.99

Questions

Is BlueSpy free?
BlueSpy is free to download, with in-app purchases available.
Is ServerDoor free?
ServerDoor is free to download, with in-app purchases available.
Do BlueSpy or ServerDoor have ads?
Neither BlueSpy nor ServerDoor shows ads.
Which is updated more often, BlueSpy or ServerDoor?
BlueSpy ships an update fortnightly, and ServerDoor every 8 days. Most recently, BlueSpy was updated on September 8, 2026 and ServerDoor on August 15, 2026.

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