Sincerus
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Sincerus vs Bluesky

Bluesky is an open, decentralized network you can use anywhere; Sincerus is an iPhone network where every post is typed and confirmed by a person. Pick Bluesky for openness and reach, Sincerus for knowing a human wrote each post.

Updated

What is the difference between Sincerus and Bluesky?

Bluesky runs on the open AT Protocol: accounts can move between providers, anyone can build apps and custom feeds, and bots can post through its API. Sincerus is a single iPhone app that checks every post as it is published, typed by hand, confirmed with Face ID and signed by the device, so automated accounts can’t post.

How do Sincerus and Bluesky compare?

SincerusBluesky
Proves each post came from a personYes: typed, confirmed and signed on a real iPhoneNo; domain handles and blue checks for notable accounts [1]
Automated (bot) accountsBlocked: posting needs a real iPhone and its owner’s confirmationAllowed through the open API [2]
Ads in the feedFree tier, marked; none with PremiumNo (as of 2026)
End-to-end encrypted messagesYes, one-to-one and groupsNot built in; optional through Germ [3]
Posts used to train AIOnly if you opt in (off by default)Bluesky says it doesn’t train generative AI on posts [4]
Open protocol, portable accountNoYes, AT Protocol
Photos and videoUp to 2 photos per post; no videoYes
Available oniPhoneiOS, Android, web

Compared on October 23, 2026. Numbers in brackets point to the sources below.

Should I use Sincerus or Bluesky?

Use Bluesky if you want an open network, a large community that is already there, video, or Android and the web. Use Sincerus if you want a feed where every post was typed by a person on their own iPhone, with no bots and no AI-written posts. Plenty of people will use both.

Can I bring my Bluesky followers to Sincerus?

No. Sincerus doesn’t connect to the AT Protocol or import accounts. You start fresh and follow people on Sincerus itself.

Sources (4)
  1. TechCrunch: Bluesky’s new verification system (April 22, 2025)
  2. Bluesky documentation: bot starter template
  3. TechCrunch: Germ brings end-to-end encrypted messages to Bluesky (July 30, 2025)
  4. MediaNama: Bluesky won’t train generative AI on user data (November 2024)

Sincerus is a social network for iPhone where every post is typed by a person and confirmed with Face ID. No bots, no AI-written posts.

Coming soon to the App Store