Comparison

JS Server vs Pocket VHDL

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

Head to head
About

JS Server

Features
Read full description

Server turns your iPhone or iPad into a developer-friendly HTTP host. Point a listener at a file and it gets served. Write JavaScript and it runs. WHAT YOU CAN DO Serve static files Pick a file from the Files app, or edit one inline. Custom Content-Type per listener. A default HTML page is provided for quick smoke tests. Write JavaScript routes Every JavaScript listener gets an Express-like surface running inside JavaScriptCore. Register routes with server.get, server.post, server.all, and respond with res.html, res.json, res.text, res.send. Set status and headers fluently. No Node dependency. Your code evaluates on device. Read and write files from JS A sandboxed fs module is bridged through Swift: readFile, writeFile, exists, mkdir, readdir, unlink, stat. Every listener gets its own private directory. Any path that tries to escape the sandbox is rejected. Call external APIs Outbound fetch is bridged too. Pass a URL, optionally a method, headers, or a body, and get back status, ok, headers, text, and json. Perfect for proxies, webhooks, or quick integrations. Run multiple listeners at once Each listener runs on its own port, started and stopped independently. Bonjour advertises them on your local network so peers can find them by name. Live Activities A listener running in the background shows up in the Dynamic Island and on the Lock Screen with the port and request count. Inspect every request The Console panel logs every HTTP request, every console.log, and every runtime error. Tap an HTTP row to expand the full request (method, URL, headers, body) and response (status, headers, body, timing). Syntax highlighting In-app editor with an IDE-style dark theme for JavaScript, Python, and HTML. WHO IT IS FOR Developers prototyping APIs on the go. QA engineers testing mobile clients against a controllable backend. Anyone who needs to serve a JSON blob, a mock endpoint, or a small HTML page from their iPad without setting up a real server. PRIVACY No accounts, no telemetry, no analytics. Nothing leaves the device except the HTTP responses you explicitly send. All code, data, and logs live in your app sandbox. Questions or feedback: server@cyber-man.pl

About

Pocket VHDL

Features
Read full description

Pocket VHDL is an offline VHDL code editor for iPhone and iPad. Open, edit, and save .vhd and .vhdl documents through the Files interface. Syntax highlighting distinguishes keywords, types, strings, numbers, and comments, while document-aware completion helps you reuse declarations from the source you are editing. Features • Create, open, edit, and save .vhd and .vhdl documents • Highlight VHDL keywords, types, strings, numbers, and comments • Complete signals, variables, constants, types, and VHDL language items • Find, move between results, replace, and replace all • Show line numbers and go directly to a line • Navigate entities, architectures, processes, and declarations in the symbol outline • Use automatic indentation and paired brackets or quotes • Access a mobile coding toolbar and hardware keyboard shortcuts • Adjust font size, tab width, and editing behavior • Work in portrait or landscape on iPhone and iPad Pocket VHDL requires no account and includes no advertising or user tracking. Document contents are not sent to a developer-operated server. The current version focuses on code editing and does not compile or simulate VHDL.

Screenshots

JS Server4 screens
Pocket VHDL4 screens

Verdict

The call

The clearest difference is price: Pocket VHDL at Free against JS Server's $4.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Pocket VHDL is free to download; JS Server costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Ā· 5 level
JS Server versus Pocket VHDL: the parameters behind the verdict, then further details
ParameterJS ServerPocket VHDL
Price$4.99Free — better
Update frequencyDaily—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size3 MB4 MB
Age rating4+4+
DeveloperTomasz Dbrowskiki youn ryu

In-app purchases

None

JS Server

No in-app purchases

None

Pocket VHDL

No in-app purchases

Questions

Is JS Server free?
JS Server costs $4.99, with no in-app purchases.
Is Pocket VHDL free?
Pocket VHDL is free to download, with no in-app purchases.
Do JS Server or Pocket VHDL have ads?
Neither JS Server nor Pocket VHDL shows ads.

Other comparisons