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ButterShare vs PairOnce

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ButterShare compared with PairOnce
DetailButterShare logo ButterSharePairOnce logo PairOnce
What it doesSend files directly between devices with encrypted WebRTC, no account and no cloud file storage Free file transfer between devices, no sign-up
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFree Freemium
PricingNot given Free: basic file transfer, up to 2 GB per file, 200 MB per month relay data per device. PairOnce Pro: $3.99 a month or $29.99 a year; adds 5 GB relay data per month per device, files up to 10 GB, and higher tool limits.
Key features
  • Direct device-to-device file streaming with no cloud storage
  • No file size limits for transfers
  • End-to-end encryption with cryptographic keys
  • No account or signup required
  • Works on all modern browsers and devices
  • QR code and room code sharing options
  • Native disk streaming for large files
  • Folder structure preservation during transfer
  • Supports up to 10,000 files per session
  • Resumable transfers with checkpoint data
  • Direct and encrypted file transfer between devices
  • Support for files up to 2 GB free, 10 GB with Pro
  • Automatic resume for large file transfers if connection drops
  • Works across different networks with relay when needed
  • Compatible with all major browsers and operating systems
What makes it different
  • No cloud server storage intermediary for maximum privacy
  • Zero-knowledge architecture with ephemeral session keys
  • Unlimited file sizes with no subscription fees
  • Instant sharing without email verification or login
  • Transfer speeds at local gigabit rates on same network
  • No app, account or sign-up required
  • Files never stored on servers, end-to-end encrypted
  • Works across networks and Wi-Fi with direct connections when possible
  • Automatic resume of large transfers if connection drops within 30 minutes
Community votes00
DR (Domain Rating by Ahrefs)28 +2 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)80
Citation Flow (Majestic)300
Referring domains (Majestic)600

4 details filled in for both companies.

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