Chapar vs RejectProof

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

Chapar compared with RejectProof
Detail	Chapar	RejectProof
What it does	A fast, private and offline API client for REST, gRPC, GraphQL and WebSocket services	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	Open source	Paid
Pricing	Not given	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	REST and HTTP with every method, query and path params, JSON, XML, text, form-data, URL-encoded and binary bodies gRPC with server reflection or proto files, unary and server-streaming calls, metadata and trailers, TLS and mutual TLS GraphQL queries and variables with data and errors split out WebSocket text, JSON and binary messages with live message log Traffic proxy to capture HTTP(S) traffic of apps and phones Python scripting for pre and post-request scripts with tests Test cases and CI integration with chapar-cli Environments with variables and secret values encrypted with OS keychain Import Postman collections, OpenAPI specs and proto files Code generation for cURL, Python, Go, JavaScript, Java, Ruby and .NET	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	Local-only data with no cloud sync or telemetry GPU-rendered native UI that starts quickly and runs on macOS, Linux and Windows without a browser engine Collections stored as YAML files in git for version control Built-in traffic proxy for inspecting and importing HTTP(S) traffic from other apps Free and open source under BSD 3-Clause license	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)	6 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	5	3
Citation Flow (Majestic)	26	15
Referring domains (Majestic)	31	8

4 details filled in for both companies.

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