Creators

Ryohei Kameyama

Hello🖐️CEO of covelline, known for @feather_ios. Building AI agent for data-driven teams | Hobby pr***@signalmidi CEO/TypeScript/Swift/🎸DTM/UX

@ryoheyc 308 X followers ryoheycodingcafe.jp First product launched 17mo ago

Total monthly visits
110.1K
Down24.4%MoMOct 2026All others besides signal are <5K
Public revenue
Undisclosed
No public revenue across products
Products
2
Since Jun 2025
Latest launch
15mo ago
signal110.1K visits/mo
100% full-depth creator dossier open: complete product portfolio, 12-month combined traffic & MRR curves, shipping cadence, and timeline events.

Traffic

Portfolio · Last 12 months
  • signal
  • +1 with <5K visits or no data
Monthly visits

Products

Products and research metrics
ProductVisits · OctActions
signalOSSFully Open-sourced Online MIDI Editor110.1K
Eyes MailSend thousands of emails from Gmail. Dead simple.<5K

Timeline

Launches, marketing, revenue milestones, and pricing/plan/positioning changes across products

  1. Nov 1 · 15d ago

    • signal Adopted technology: TurbopackFeatures

      —→Turbopack

  2. Aug 30, 2025 · 15mo ago

  3. Jun 11, 2025 · 17mo ago

Questions & evidence

What products has Ryohei Kameyama built?
Ryohei Kameyama tracks 2 standalone software products on EarlyLore (2 currently live), led by signal, Eyes Mail.
How much website traffic do Ryohei Kameyama's products get?
Across tracked standalone domains with web traffic estimates, Ryohei Kameyama's portfolio reaches 110.1K combined monthly visits in each site's latest observed month. Coverage excludes shared third-party hosts and store listings.

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