Unsubscribe from emails with one click and mass delete unwanted emails
Newsletter sponsorship platform connecting brands with publishers
Stage
Not given
Not given
Founded
Not given
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Based in
TR
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Pricing model
Freemium
Freemium
Pricing
Basic plan: $20 per month with 10 unsubscribes and 50 bulk email deletions. Inbox Zapper Unlimited: $3.33 per month when billed annually with unlimited unsubscribes and unlimited bulk email deletions. A 20% discount is available for annual billing.
Free to join for both brands and newsletters. Brands pay the sponsorship price only after a newsletter accepts. LetterBid keeps 25% of each sponsorship as fee (includes payment processing); newsletters receive 75%.
Key features
Bulk unsubscribe from unwanted email lists
Mass delete emails
Clean Gmail, Outlook, Hotmail and Live inboxes
Connect and manage several email accounts
Encrypted end-to-end
Preview actions before execution
30-day trash recovery
Newsletter discovery with verified audience data
Three sponsorship placement types: dedicated email, sponsored ad, banner ad
Direct, multi-newsletter, and recurring campaign types
Custom offer negotiation with up to 3 counter offers
Payment held in escrow until delivery approval
Verified newsletter badges with audience verification
Delivery reports and brand approval process
Public storefront for newsletters with shareable booking link
Stripe integration for payouts on the 15th of each month
Dispute resolution with LetterBid team intervention
What makes it different
Works without opening emails by recognizing sender and subject line patterns
Certified by Google's privacy team
Full user control with preview before actions
Transparent, fixed pricing with no hidden fees or surprise charges
Payment held in escrow and released only after delivery proof and brand approval
Verified audience data for newsletters to reduce guesswork
No upfront payment required; brands pay only after newsletter acceptance
Dispute resolution system with fair split option if sides cannot agree
Inbox Zapper
LetterBid