Sync podcasts from iPhone to MP3 swim headphones in two minutes
Find who said what and when with your AI agent
Stage
Not given
Startup
Founded
Not given
2025
Based in
DE
SG
Pricing model
Freemium
Freemium
Pricing
First sync free. Swimcast Plus: $29.99 one-time lifetime purchase.
Free: $3 credit included with new accounts; Pay-as-you-go: $1/hour; Starter: $9/mo (unlimited, up to 2 hours per file); Pro: $19/mo (unlimited, up to 5 hours per file); Business: $49/mo (unlimited, up to 10 hours per file). Annual plans include 3 months free.
Key features
Find and add podcasts
Choose episodes on iPhone
Sync MP3 episodes to compatible swim headphones
Set playback order before swimming
Works with Shokz OpenSwim, OpenSwim Pro, H2O Audio, FINIS Duo
No Bluetooth required
Two-minute setup
Speaker labels and word-level timestamps
52 languages and dialects
Chapters with timestamps
Search and Q&A with citations
Subtitle generation in multiple formats
Integration with ChatGPT, Claude, and AI agents
API and MCP server access
Encrypted storage and privacy controls
Library search across multiple recordings
File upload for meetings, lectures, podcasts and voice notes
What makes it different
Direct iPhone to headphone sync without laptop needed
Built specifically for MP3 swim headphones where Bluetooth fails underwater
Designed for quick two-minute pre-swim preparation
Free first sync to test compatibility before paid option
Set and review playback order on iPhone before syncing
Word-level timestamps that enable precise subtitle generation for any platform
Ask questions across multiple recordings with citations back to the original moment
Supports use directly within ChatGPT and Claude without leaving your agent
Benchmarked accuracy with 1.5x to 2.3x fewer errors than Whisper large-v3
Permanently searchable library that organizes all transcripts in one place
Swimcast
Transcribe.so