Building a TTS macOS App for Content Creators

May 17, 2025#AI#ML#TTS

Text-to-speech(TTS) is gaining popularity among content creators. While time-saving, cost, and scalability matter, anonymity is often the most important factor—especially for faceless channels, niche commentary, or sensitive topics.

“A fast, native macOS app that turns scripts into studio-quality voiceovers—offline, with emotion control, and ready to drop into Final Cut or OBS.”

Here I’ll validate the idea of a TTS macOS app for content creators, how it’s positioned and what it does better than current tools based on current market dynamics, gaps, and user demand.

Problems

Pain Point Evidence
Robotic or synthetic-sounding voices Common complaint in user reviews of older macOS AVSpeechSynthesizer, Google TTS, Amazon Polly, etc.
Limited emotion control or voice styles Creators want to add sarcasm, drama, excitement—most TTS can’t
Complex workflow Going from script → audio → editing → syncing takes too long
Paywalls or watermarking in popular tools Freemium models often limit voice options or audio length
Lack of macOS-native, offline-first options Most tools are web-based or require a browser tab open for TTS

Competitors

Current Tool Platform Weakness
Descript Overdub macOS/web Cloud-only, costly, limited emotional tone
Murf.ai Web Expensive, slow for large scripts, watermarking
TikTok native TTS Mobile-only Can’t export audio for reuse
Google/AWS/Azure TTS Web/API Not creator-friendly; complex setup
macOS AVSpeechSynthesizer macOS Old, few voices, robotic, no customization

MVP

Feature Notes
🗣️ Text-to-speech Start with Kokoro or Orpheus TTS
🎭 Voice style presets Happy, sad, excited, pause
🎚️ Timeline editor (optional) Highlight a word, add emphasis/speed
đź§ľ Export to WAV/MP3 Ready for drag-and-drop into Final Cut/OBS
đź§  Local voice cache Avoid API rate limits, improve speed
🖥️ Native SwiftUI UI Minimal, beautiful UX for Mac creators

Monetization

Model Description
Freemium Free tier with 1 voice, 2 emotions; paid unlocks more
Subscription $9.99/month for unlimited high-quality TTS, export, and styles
Voice marketplace Let creators buy or sell custom voice packs (rev-share)
Team/agency pricing Podcasters or YouTube editors may pay for team seats

Customers

Persona Use Case Willing to Pay
TikToker (casual) Quick voiceover, humor Free to $5/mo
YouTuber (pro) Narration, tutorials $10–20/mo if voice is great
Indie dev Game character voices $15–30 for voice packs
Podcaster Alternate voices $10–20/mo for batch export

Risks

Risk How to Handle
Voice cloning ethics/licensing Include clear usage terms, disallow celeb mimicry
Competing with giants (Google, OpenAI) Focus on UX, emotion control, Mac-first native speed
API limits or pricing Consider optional local/offline TTS fallback using macOS voices