JavaScript Anywhere JSAnywhere vs Is It Down?
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JavaScript Anywhere JSAnywhere
This app provides a portable programming editor for web development on mobile devices. It allows users to write and preview JavaScript, HTML, and CSS code, with features like console logging and file sharing. It's designed for web engineers and designers needing a simple, on-the-go coding solution.
- Write JavaScript, HTML, CSS
- Internal browser preview
- Console logs and errors
- Import/export via Dropbox
- Project templates
- Wi-Fi server
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Programming editor in your pocket. JavaScript Anywhere is one of the oldest development environments on iOS since 2010. It's a simple and portable editing tool for web engineers and designers. [Features] - Write JavaScript, HTML, and CSS source code. - Preview on the internal browser. - Show console logs or errors. - Import project / Download images from the web. - Send e-mail / iTunes file sharing to export. - Configure editor styles, and syntax highlighting. - Simple server for Wi-Fi - Export to / Import from Dropbox. - Project templates (Basic/jQuery/React/Bootstrap/p5) That's all. JSAnywhere is minimal forever. Happy coding! --------------- Featured in: * The magazine "Mac People" in September 2013 issue. * "Apps for Developers" on App Store collection by Apple in June 2015.
Is It Down?
Monitor your favorite websites for downtime directly from your Notification Center. Ideal for webmasters needing constant website checks, this app offers individual port testing and customizable display options for your server list.
- Notification Center widget
- Limitless server list
- Individual port testing
- Customizable port display
- Port naming
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Check for downtime in your favorite websites right from your Notification Center. This is the perfect app for webmasters who need to check for their websites constantly during the day! Features include: ・Limitless server list. ・Individual port testing. ・Individual port naming. ・Option to display ports in widget by name or by number. More features are to be added soon, and feedback is always welcome. If your port is always being marked as "down", make sure it is accessible via telnet, and not dropping the connection before the initial handshake.
Screenshots
Verdict
The clearest difference is rating: JavaScript Anywhere JSAnywhere at 3.5 against Is It Down?'s 2.7. JavaScript Anywhere JSAnywhere also leads on ratings volume (459 vs 3) and review sentiment (55% vs 33%). Is It Down?'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
JavaScript Anywhere JSAnywhere holds the better App Store score, 3.5 against 2.7. That said, the two scores are not equally well evidenced: JavaScript Anywhere JSAnywhere has 459 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 55% of JavaScript Anywhere JSAnywhere's written reviews are positive against 33% of Is It Down?'s.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.
| Parameter | JavaScript Anywhere JSAnywhere | Is It Down? |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (459 ratings) — better | 2.7 (3 ratings) |
| Positive reviews | 55.1% of reviews — better | 33.3% of reviews |
| Number of ratings | 459 — better | 3 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Tatsuya Tobioka | Bruno Philipe Resende Silva |
Customer experience
JavaScript Anywhere JSAnywhere
Is It Down?
Bugs and requests
JavaScript Anywhere JSAnywhere
Reported bugs
4 issues- Crashes when creating new projects
- CSS and JavaScript changes not reflected in output
- Incompatible with newer iOS versions
- Unexpected behavior with certain JavaScript features
Requested features
9 requests- Add ability to save files
- Improve syntax highlighting
- Add line numbers
- Support for more file types (e.g. TypeScript, SCSS)
- Ability to create and manage multiple projects
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- Integrate with cloud storage (e.g. iCloud, Google Drive)
- Add a JavaScript console for debugging
- Customize keyboard with common coding characters
- Implement a full-screen mode
Is It Down?
Not enough reviews yet to summarise bugs or requests.
In-app purchases
JavaScript Anywhere JSAnywhere
No in-app purchases
Is It Down?
No in-app purchases
Questions
Is JavaScript Anywhere JSAnywhere free?
Is Is It Down? free?
Which has better reviews, JavaScript Anywhere JSAnywhere or Is It Down??
Do JavaScript Anywhere JSAnywhere or Is It Down? have ads?
Which is updated more often, JavaScript Anywhere JSAnywhere or Is It Down??
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