# RUMAR — Complete Technical & Functional Specification
> Site URL: https://rumar.uz
> Description: AI-Powered Grammar Checker and Writing Assistant

## Overview
RUMAR (rumar.uz) is a high-performance, privacy-focused AI writing platform. It combines neural language models with natural language processing to assist students, academics, business professionals, and content creators.

## Detailed Tool Documentation

### 1. Free AI Grammar Checker (/grammar-checker)
Analyzes sentence syntax, subject-verb agreement, tense consistency, and structural clarity in real time across 100+ languages.

### 2. Online Spell Checker (/spell-checker)
Detects contextual spelling mistakes, typos, homophones (their/there/they're, affect/effect), and vocabulary errors.

### 3. Punctuation Checker (/punctuation-checker)
Identifies misplaced commas, missing periods, run-on sentences, and comma splices.

### 4. Sentence Rewriter (/sentence-rewriter)
Rephrases awkward sentences to improve flow, cadence, and readability.

### 5. Paraphrasing Tool (/paraphrase-tool)
Rewrites full paragraphs for academic rigor, business conciseness, or creative variation.

### 6. AI Content Detector (/ai-content-detector)
Evaluates text for synthetic markers, machine-generated patterns, and perplexity scores.

### 7. AI Text Humanizer (/ai-text-humanizer)
Transforms rigid AI-generated output into natural, authentic human-style prose.

### 8. Essay Grammar Checker (/essay-checker)
Tailored proofreading for academic papers, dissertations, and research essays.

### 9. Proofreading Tool (/proofreading-tool)
Comprehensive document polish addressing tone consistency and vocabulary choice.

### 10. Academic Writing Tool (/academic-writing-tool)
Refines scholarly manuscripts according to formal academic standards.

### 11. Business Writing Tool (/business-writing-tool)
Polishes executive emails, reports, proposals, and client communications.

### 12. Multilingual Grammar (/multilingual-grammar)
Native grammar correction for over 100 languages including English, Uzbek, Spanish, German, French, and Russian.

## Privacy & Security Policy
- Encryption in transit (TLS 1.3/HSTS).
- No long-term storage of user text on public endpoints.
- User data is never sold or used for public AI training.

## Subscription Tiers (/pricing)
- Free: 15,000 daily character limit.
- Starter ($4/mo): 50,000 daily character limit.
- Pro ($9/mo): 200,000 daily character limit.
- Ultra ($15/mo): 800,000 daily character limit & unlimited documents.