Comparison

JavaScript Studio Pro vs Quardian

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

Head to head
About

JavaScript Studio Pro

Develop web applications on your mobile device using JavaScript, CSS, and HTML. This tool offers error checking assistance as you code, ensuring you don't lose track of your ideas. Create and save your projects anywhere, anytime.

Highlights
  • Write JavaScript, CSS, HTML code
  • Create web applications
  • Error checking assistance
  • Save code and ideas
  • Mobile development environment
Features
Read full description

Use your JavaScript, CSS, html skills to create apps wherever you go. These days many of us we use a smartphone anytime, as a developers sometimes we write code using some text editor to save it, for this reason I developed JavaScript Studio app a smart app that works on your phone, With JavaScript Studio you can create web apps by writing JavaScript code, CSS, Html, Html5. Error Checking? Yes, JavaScript Studio will help on it while coding by inserting a simple comment text. Never Miss any code and idea again Use JavaScript Studio Pro. ARROWAT™ JavaScript Studio Pro.

About

Quardian

Features
Read full description

Every QR code is a blind hyperlink. Quardian opens your eyes. Quardian is the most advanced QR code security scanner for iOS. Point your camera at any QR code or barcode, and Quardian instantly runs 14 security checks — all on-device, in under 200ms, with zero data leaving your phone. ▸ REAL-TIME THREAT DETECTION • Phishing detection — catches brand impersonation, suspicious domains, and URL shortener obfuscation • JavaScript injection blocking — detects XSS payloads, script tags, event handlers, and encoded attacks • SSL certificate verification — inspects the actual certificate, extracts organization, country of origin (with flag), issuer, and expiration date • Domain trust verification — unknown domains start as suspicious until SSL is verified • EMV payment QR validation with CRC-16 checksum integrity ▸ SAFE BROWSER (PRO) Open scanned URLs in a hardened sandboxed browser. JavaScript blocked by default. No cookies. No persistent storage. No downloads. Redirect chain detection. Credential harvesting prevention. ▸ BARCODE SCANNER & FOOD SAFETY Scan any UPC or EAN product barcode to instantly see the product name, estimated price, Nutri-Score (A–E), NOVA processing level, and full nutrition facts. Quardian checks against 50+ harmful substances including Red 40, HFCS, trans fats, BVO, titanium dioxide, and more — using EU safety standards with child safety alerts. ▸ AI IMAGE DETECTOR (PRO) Detect AI-generated images using 7 on-device analysis signals — EXIF metadata, camera hardware, resolution patterns, noise variance, edge sharpness, color distribution, and file format analysis. Sweep your entire photo library to find AI images hiding among real photos. ▸ HIPAA COMPLIANCE (PRO) The only QR scanner designed for clinical environments. Detects Protected Health Information (SSN, MRN, DOB, insurance IDs). Biometric session lock. Immutable audit trail. Configurable data retention. Device security audit. ▸ FREE WITH DAILY LIMITS Every feature is available free: 5 scans/day, 3 URL checks, 1 AI analysis, 3 Safe Browser uses. Upgrade to Pro for unlimited access. ▸ PRO PLANS • Monthly: $3.99/mo (7-day free trial) • Yearly: $29.99/yr — save 37% (7-day free trial) ▸ PRIVACY FIRST No accounts. No tracking. No analytics. No data uploaded. Everything runs on-device. Your scan history never leaves your phone. U.S. Patent Pending (App. No. 30/053,383) Privacy policy https://quardian.ai/privacy.html Terms of use https://quardian.ai/terms.html

Screenshots

JavaScript Studio Pro4 screens
Quardian3 screens

Verdict

The call

The clearest difference is price: Quardian at Free against JavaScript Studio Pro's $12.99. JavaScript Studio Pro's advantage is in-app purchases (none vs 2) and iOS requirement (10.0 vs 16.0). On ads 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

CostPrice · In-app purchases · Ads · Monetization

Quardian is free to download; JavaScript Studio Pro costs $12.99 up front. Quardian sells 2 in-app purchases, starting at $3.99 per month. JavaScript Studio Pro asks for nothing beyond the download.

Scorecard3 real differences · 6 level
JavaScript Studio Pro versus Quardian: the parameters behind the verdict, then further details
ParameterJavaScript Studio ProQuardian
Price$12.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 20 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better16.0
Further details — not scored
Size33 MB6 MB
Age rating4+4+
DeveloperArrowat LLCDan Solheim

In-app purchases

None

JavaScript Studio Pro

No in-app purchases

2 purchases

Quardian

Subscriptions2
  • Quardian Pro Monthly$3.991 Month
  • Quardian Pro Yearly$29.991 Year

Questions

Is JavaScript Studio Pro free?
JavaScript Studio Pro costs $12.99, with no in-app purchases.
Is Quardian free?
Quardian is free to download, with in-app purchases available.
Do JavaScript Studio Pro or Quardian have ads?
Neither JavaScript Studio Pro nor Quardian shows ads.

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