CurlyJSON vs RejectProof

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

CurlyJSON compared with RejectProof
Detail	CurlyJSON	RejectProof
What it does	JSON Formatter & Validator — Free, Private & Offline	Find out why Apple will reject your app before you submit
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	TR
Pricing model	Freemium	Paid
Pricing	Free for all tools. Pro: $29.99 per year or $4 per month, plus tax.	Free: 10-question metadata review with no account. One app: $12 for full 54-point scan with 3 days of unlimited re-scans. Five apps: $39 ($7.80 each) for 5 credits. Studio: $99 for 20 apps ($4.95 each). One-time payment, no subscription. All prices exclude VAT.
Key features	Validate JSON with precise line and column errors Repair invalid JSON fixing trailing commas, quotes, and comments Preserve large integers without rounding Detect and mask API keys, tokens and passwords	54-point binary and metadata checks covering privacy, runtime, app completeness and provisioning Each issue includes guideline number, evidence and plain-English fix Support for Expo, Xcode, Rork, a0 and Bolt builds Privacy-first approach with JSON-only server communication Rejection guarantee refund if approved app marked as passing fails review
What makes it different	Keeps large numbers exactly as written instead of silently rounding them like most online formatters All free tools run entirely in your browser, working offline without uploading data Automatically detects and warns about secrets like API keys and passwords	One-time payment per app with no subscription Unlimited re-scans for 3 days after purchase to verify fixes Built by an iOS developer with focus on preventing avoidable rejections
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	7	3
Citation Flow (Majestic)	13	15
Referring domains (Majestic)	2	8

5 details filled in for both companies.

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