AI Detector iOS App

Mobile app
AI-powered iOS app that detects plagiarism and humanizes AI-generated text instantly
Published on
March 12, 2026
Main Metrics
$3,700
ARR
9,000
Customers
2025
Launched

$50,000

Asking Price
Already Sold
Main Metrics
$3,700
ARR
9,000
Customers
2025
Launched

Overview

<p><b>Startup description</b></p><p>My product is a native iOS productivity app that helps students, writers, and professionals detect AI-generated content, check plagiarism, paraphrase text, summarize documents, and chat with PDFs — all in one tool. It was built to capture the exploding demand for AI detection tools following the mainstream adoption of ChatGPT. The app was launched in May 2025 and has grown entirely through organic App Store traffic and referrals, with no paid acquisition needed to reach profitability.</p><p><b>Key highlights</b></p><ul> <li>10,900 total downloads since launch (less than 10 months)</li> <li>$3,090 total proceeds (App Store net revenue)</li> <li>12.6% App Store conversion rate (industry average is 2–5%)</li> <li>$2.98 average revenue per paying user</li> <li>4.3★ rating across 34 reviews</li> <li>121K impressions, 13.7K product page views</li> <li>Top markets: USA (4,799), Egypt (2,642), Saudi Arabia (582)</li> <li>41.1% of downloads from organic App Store Search — strong keyword positioning</li> </ul> <p><b>Team</b></p><p>Solo-built and operated by one indie developer. No employees, no contractors. The app runs fully autonomously — no customer support overhead, no manual fulfillment. A buyer needs zero team to operate this from day one.</p><p><b>Tech stack</b></p><ul> <li>Swift / SwiftUI — native iOS frontend</li> <li>StoreKit — in-app purchase &amp; subscription management</li> <li>REST APIs — AI detection and plagiarism engine via third-party APIs</li> <li>Firebase — analytics and crash reporting</li> <li>Apple App Store — sole distribution channel</li> </ul> <p>Simple, maintainable codebase. No complex infrastructure. A solo iOS developer can own and operate this with ease.</p><p><b>Marketing &amp; growth</b></p><p>Growth has been entirely organic:</p><ul> <li>50.7% of downloads from App Referrers (cross-promotion within the developer's app portfolio)</li> <li>41.1% from App Store Search (strong ASO with keywords)</li> <li>4% Web Referrer</li> <li>Zero paid acquisition spend</li> </ul> <p>A buyer with Google Ads, TikTok, or influencer marketing experience could significantly accelerate revenue — this app has never been marketed beyond organic.</p><p><b>Revenue &amp; profit</b></p><ul> <li>Total proceeds to date: ~$3,090 (App Store net, after Apple's 30% cut)</li> <li>Gross revenue (pre-Apple cut): ~$4,414</li> <li>Pricing tiers: Weekly $5.99 · Monthly $9.99 · Yearly $19.99 · Lifetime $24.99</li> <li>Avg revenue per paying user: $2.98</li> <li>Margins: ~85%+ (no COGS beyond API costs)</li> <li>MRR: Estimated ~$300–$400/month based on proceeds trend</li> </ul> <p>The app is pre-profitability as a standalone business but generates consistent passive revenue with zero overhead.</p><p><b>Return on investment</b></p><p>At the asking price, a buyer running basic paid acquisition (Google UAC or Meta) targeting students in the US and MENA region — where the app already ranks organically — could realistically 5–10x downloads. Given a 12.6% conversion rate and $2.98 ARPU, scaling downloads is the primary lever. Payback period estimate: 18–30 months at current organic trajectory; 6–12 months with active marketing.</p><p><b>Assets included in the sale:</b></p><ul> <li>Full iOS Xcode source code</li> <li>Apple Developer account transfer (or app transfer via App Store Connect)</li> <li>App Store listing: 10,900+ downloads, 4.3★, 34 reviews, established keyword rankings</li> <li>All app assets: icons, screenshots, metadata, App Store copy</li> <li>Firebase project &amp; analytics history</li> <li>Version history across 14 updates (v1.0 → v2.4)</li> </ul> <p><b>Risks</b></p><ul> <li>API dependency: AI detection and plagiarism features rely on third-party APIs. A price increase or outage from providers could impact margins. Mitigation: negotiate annual contracts or switch providers — APIs in this space are commoditized.</li> <li>App Store policy. The app has already navigated this successfully through v2.4 with no removals. Mitigation: the core value is detection + paraphrasing, which is fully compliant.</li> <li>Competition: This is a high-demand, competitive category. Mitigation: the app's 12.6% CVR and organic ranking prove product-market fit.</li> </ul> <p><b>Summary</b></p><p>This is a battle-tested, fully built iOS app in one of the hottest niches of 2025–2026 — AI content detection. It has 10,900 downloads, proven organic traction, an 85%+ margin business model, and zero team required to operate. The previous owner has already done the hard work: built the product, iterated to v2.4, established keyword rankings, and proven conversions. A buyer with any marketing budget or distribution advantage (newsletter, YouTube, TikTok, existing app portfolio) can unlock significant revenue growth from day one. This is a rare opportunity to acquire a live, revenue-generating AI app at an early-stage price.</p><p>✅ $3,700 in ARR</p><p>✅ 9,000 customers</p><p>✅ Business model: SaaS</p><p>✅ Built with SwiftUI, Gemini API</p>

$3,700

Annual Revenue

9,000

Number of Customers

Expenses

AI/Plagiarism API costs.

Business Model

Freemium iOS app monetized through in-app subscriptions and a one-time lifetime purchase. Users download for free and unlock premium features via: Weekly: $5.99 Yearly: $19.99.

Target Audience

Students — checking essays and assignments for plagiarism before submission, detecting if their own writing flags as AI Content creators & bloggers — humanizing AI-drafted content to pass detection tools like Turnitin, GPTZero, and Originality.ai.

Asking Price Reasoning

The $16,000 asking price represents ~3x ARR, which is conservative given the growth fundamentals: 10,900 downloads achieved with zero paid marketing spend 12.6% App Store conversion rate.

Reason for Selling

I'm a solo indie developer managing a portfolio of multiple iOS apps simultaneously. I want to focus my time and resources on newer projects in my pipeline. This app is profitable and growing but would benefit from a dedicated owner who can give it more time.

Growth Opportunity

The app has grown to 10,900 downloads with zero paid marketing spend. Every download came from organic App Store Search (41%), cross-app referrals (51%), and web traffic (4%). The growth upside for a buyer is enormous.

30 days free support from seller

Competitors

TurnitinWeb/enterprise. Expensive, no mobile app, targets institutions only. GPTZeroWebNo iOS app, no paraphrasing/humanizing feature. Originality.ai: WebPaid-only, no free tier, no mobile.

Tech Stack

SwiftUI, Gemini API.

Traffic Metrics

Revenue Metrics

How it works

Main Metrics
$3,700
ARR
9,000
Customers
2025
Launched

$16,000

Asking Price
Already Sold
Founder Details
Read the story
Main Metrics
$3,700
ARR
9,000
Customers
2025
Launched

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