Postdate
Messages and files that open when you choose
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Share a message and files through one link that opens when you choose. Recipients see a countdown, then the reveal. Content is encrypted in your browser before upload. Set how long it stays available, and choose Standard or Timelock, which encrypts the key for a future drand release. Standard is free within 7 days and 1 MB. Anything beyond that is $3 per Postdate: Timelock, up to 100 MB, and dates up to a year away. Built for launch reveals, embargoes, surprises, and time capsules.
PH · launched Sep 24, 2026 · 3 upvotes (top 11%) · 0 views
Niche: private and secure messaging apps · 144 launches, 10 in the last 7 days ▼ -41% · Explore this niche →
Category and tags
- Horizontal
- Communication
- B2C
- Not AI
- Commercial product
- Productivity
- Privacy
- Encryption
Visit website ↗ Source listing ↗
More like this: all 144 launches in private and secure messaging apps →
Could you build this?
Yes Browser-side cryptography, standard file hosting (like S3/Cloudflare R2), and integrating the public drand (Distributed Randomness Beacon) timelock encryption library can be wired together in a modern web app quickly.
Competitors
Other products that read as similar to this one : 172 launches clear the similarity bar, closest 8 shown.
Attention rank: #23 of 173 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 284 days after the earliest competitor.
- Message to 2050 · ph · 2026-11-13 · 3 upvotes · similarity 0.54
- Secret File Uploading · ph · 2026-10-15 · 1 upvotes · similarity 0.46
- MemoryBoxd · ph · 2026-09-10 · 2 upvotes · similarity 0.45
- dropctl · ph · 2026-10-12 · 3 upvotes · similarity 0.45
- UploadToBlockchain · ph · 2026-11-03 · 2 upvotes · similarity 0.42
- TempJar · ph · 2026-10-27 · 1 upvotes · similarity 0.42
- Double blind entropy using Drand for verifiably fair randomness · hn · 2026-02-12 · 21 upvotes · similarity 0.42
- Time Capsule · ph · 2026-09-29 · 1 upvotes · similarity 0.39
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.