BT/BLE Scanner vs 42 Editor
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
BT/BLE Scanner
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Bluetooth Scanner turns your iPhone into a Bluetooth Low Energy explorer. Scan the environment, save the devices you care about, and inspect everything they broadcast β right down to the raw advertisement data. No cloud, no account, no internet connection needed: everything happens locally, straight from your device's Bluetooth hardware. FEATURES β’ Live scan of nearby Bluetooth LE devices, sorted by signal strength β’ Save devices to your list and give them your own nicknames β’ Swipe to remove a saved device at any time β’ Full detail view per device: signal strength (RSSI), TX power, MTU, connectable state, service UUIDs, manufacturer data, and more β’ Automatic background refresh keeps saved devices' signal strength and data up to date while you're on the Home screen β’ On-demand decoding of common BLE beacon formats β iBeacon, Eddystone, and Apple Continuity β shown as readable fields instead of raw hex β’ Export your saved device list as a JSON file via the share sheet β’ Scan preferences: auto-stop timer, hide unnamed devices, minimum signal strength filter β all remembered between launches β’ Dark mode by default, with a light mode toggle β your choice is remembered too β’ Fully offline operation, no tracking, no analytics PRIVACY Bluetooth Scanner does not collect, transmit, or store any data outside your device. Scanned and saved devices exist only for your current session; only your display preferences (theme and scan filters) are remembered locally on your device.
42 Editor
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42 Editor is a code and text editor for iPhone and iPad. It opens the files you already have, in the Files app, iCloud Drive, Working Copy, Dropbox or any other file provider, and saves your changes back to the same file. There is nothing to sign in to and nothing is uploaded. Sometimes the file that needs fixing is a config file, a script or a spreadsheet export, and the only device to hand is a phone. 42 Editor is made for those moments. EDIT IN PLACE β’ Open a file or a whole folder from any provider in the Files app. Your changes go back to the original. β’ Opened folders are remembered: create, rename, duplicate and delete files and folders inside them. β’ Recent files reopen with one tap. β’ Open in 42 Editor from the Files app and the share sheet. SYNTAX HIGHLIGHTING FOR 29 LANGUAGES Python, Swift, JavaScript, TypeScript, C, C++, Objective-C, C#, Java, Kotlin, Go, Rust, PHP, Ruby, Dart, Lua, R, JSON, YAML, TOML, INI, XML, HTML, CSS, Markdown, Shell, SQL, Makefile and Dockerfile, in light and dark. Line numbers with the current line marked, and long lines that wrap or scroll sideways. A KEYBOARD ROW FOR CODE Tab and outdent, a comment toggle, cursor keys, undo and redo, and the brackets and symbols the iOS keyboard hides. Auto-indent, optional closing of brackets and quotes, and tabs or spaces at 2, 4 or 8 wide. FIND, REPLACE AND FORMAT β’ Find and Replace, Go to Line, toggle comment, and indent or outdent a selection. β’ Format or minify JSON, keeping the order of the keys. β’ Markdown and HTML preview, a tap away. CSV AND TSV AS A TABLE A grid with a pinned header row. Edit cell by cell; add, duplicate or delete rows and columns; sort, filter and undo. The raw text is one tap away. CAREFUL SAVING 42 Editor keeps each file's text encoding (UTF-8, UTF-16 or Windows-1252), its line endings and its final newline. It autosaves two seconds after you stop typing, and if another app changed the file in the meantime it stops and asks which version to keep. iPHONE AND iPAD System, light or dark appearance, font size from 9 to 32 pt, and βS to save on a hardware keyboard. PRIVATE No account, no ads and no analytics. Your files stay on your device and in the providers you choose. 42 Editor is an editor, not a place to run code: it doesn't compile or run anything.
Screenshots
Verdict
BT/BLE Scanner and 42 Editor are too close to call on the numbers: across 5 compared parameters β price, ads, in-app purchases and device support among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | BT/BLE Scanner | 42 Editor |
|---|---|---|
| Price | Free | Free |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad β better |
| Requires iOS | 16.4 β better | 17.0 |
| Further details β not scored | ||
| Size | 31 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Kai Steuernagel | Mohammed Shehada |
In-app purchases
BT/BLE Scanner
No in-app purchases
42 Editor
No in-app purchases





