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TL;DR: Nikita and Yavghini (Yini) generated $100,000 in revenue in just 90 days from their AI humanizer tool, Natural Write, using a single TikTok account. By replicating proven viral content and structuring an frictionless 80% visit-to-signup conversion funnel, they scaled to 250,000 signups with $0 ad spend.

The Founder’s Story

Nikita (based in Serbia) and Yavghini (based in Poland) are software developers who wanted to build a growth-first micro-SaaS. While studying existing software trends on social media, they noticed that “AI humanizers”—tools that transform AI-generated text to bypass detection systems—were generating massive organic engagement and view counts on TikTok.

Recognizing a high-demand, low-friction opportunity, they committed to a two-week sprint to build and launch Natural Write. The product’s value proposition was simple: paste AI-generated text, click a button, and receive 100% humanized text that bypasses academic and corporate detectors. The tool was an immediate hit with students and content marketers, growing to $100K in revenue in its first 90 days.

The Building Process

Nikita and Yavghini teamed up with a third member, Alexander, who took full charge of technical development. Keeping the architecture highly lightweight allowed them to deploy the MVP inside two weeks.

  • Frictionless Funnel Design: The team engineered their web app for maximum conversion. Instead of forcing immediate paywalls or complex account creation, they allowed users to paste text and try the tool instantly. This design resulted in a stellar 80% visit-to-signup conversion rate, capturing 250,000 users.

The Launch & Marketing Strategy

Initially, the founders spent money on paid influencer marketing, which failed to generate substantial conversions. They pivoted to a hands-on organic TikTok strategy using a programmer’s systematic mindset.

The TikTok Growth Playbook

  1. Growth-First Research: Before writing any code, search TikTok and TikTok Creator Search Insights. Verify that competitors in your niche already have viral videos with millions of views.
  2. Targeted Location Account Setup: If marketing to a specific high-value country (like the US) while based elsewhere, you must spoof the algorithm. Buy a US VPN, a US iPhone, a US SIM/phone number, a new email, and a new Apple ID. Register the TikTok account using the US phone number.
  3. The Engagement Warm-Up (3–5 Days): Spend 30 to 50 minutes daily engaging with content in your specific niche (liking, commenting, following) to train TikTok’s algorithm on your profile’s intent.
  4. Replicate 1-to-1 High-Performing Formats: Do not try to invent a new format. Find proven viral videos from competitors and copy them 1-to-1. Recreate the exact hook, scenario, and visual delivery. For example, the founders copied a viral format using a Jim Carrey comedy clip depicting a student’s last-minute essay panic; their exact replica generated 4 million views.
  5. Add Captions in Native Editor: Always use TikTok’s built-in editor to add captions. Native features boost the video’s visibility in search algorithms.
  6. Consistent, Timed Posting: Post exactly one high-quality video per day during the target audience’s peak scrolling times (usually the afternoon/evening).
  7. Innovate & Scale: Once your copied videos go viral and establish an account baseline, begin testing unique formats, scaling to multiple accounts, or hiring dedicated content creators.

The Tech Stack

  • Frontend & Architecture: Next.js
  • Database & Deployment: Postgres, Coolify
  • AI Core: Vercel AI SDK (referred to as Next AI)
  • Email Infrastructure: Resend ($20/mo)
  • Operational Assets: VPN ($5/mo for 5 devices), US phone numbers ($5/mo per phone number)
  • Server Costs: $35/month
  • Total Operating Budget: Under $100/month (yielding extremely high profit margins).

Key Quotes & Metrics

  • Revenue: $100,000 in 90 days (Month 1: $41K, Month 2: $32K, Month 3: $27K).
  • Traffic & Signups: 300,000 unique website visits resulting in 250,000 signups.
  • Conversion Rate: 80% visit-to-signup conversion.
  • Views: 9 million organic TikTok views across their accounts.
  • Core Philosophy: “Don’t overcomplicate it. Skip inventing your own TikTok formats and just replicate what is already going viral.”

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