Push Notifications and MastoBlaster

MastoBlaster, like other Fediverse apps, uses a design that maximizes user privacy.

When you log in to your instance, the app and the server exchange the necessary cryptographic keys. The app also communicates to the instance the address of the relay, which is the server responsible for forwarding notifications to Apple.

When a new notification is generated:

1. Your instance encrypts the notification.
2. It sends the encrypted payload to the relay.
3. The relay forwards it to Apple using its own authentication key.
4. Apple delivers it to your device.

The content of the notification is encrypted by your Fediverse server and can only be decrypted by your device.

The relay, which in the case of MastoBlaster is dedicated and hosted on a FreeBSD server, receives only encrypted data. It cannot read the content, does not know which account the notification belongs to, and does not store any information about the notification itself.

Apple knows which relay sent the notification and which device it must be delivered to, but it cannot access the content.

In short, only your instance and your device can read the notification.

#MastoBlaster #Fediverse #Mastodon #GoToSocial #Akkoma #iOS #Apple #PushNotifications #FreeBSD

It is a lightweight, privacy-first Fediverse client for iOS, built around a simple idea: fast, small, predictable behavior, and first-class support for snac.

What makes it different:

• snac-first by design, not "compatible by accident"
• Works with all Mastodon API compatible software, including Mastodon, snac, GoToSocial, Akkoma, and others
• EXIF stripping on upload (HDR and orientation preserved)
• Optional on-device alt text generation via Apple Intelligence for your uploads and for images in your timeline
• Markdown posting for snac
• Granular notifications, grouping, multi-account
• Blocking and moderation tools
• Very small footprint, very low RAM usage

Alt text generation happens entirely on device via Apple APIs on supported hardware. Nothing is sent to external services.

It is built around my own workflow and priorities. It may not be for everyone, and that is perfectly fine.

Important note:
MastoBlaster will always be free for BSD Cafe users, illumos Cafe users, and for anyone connecting to a snac instance, including self-hosted ones.

The app is already usable, but this is still a test phase. I am looking for feedback, bug reports, and real-world usage insights.

TestFlight link:
https://testflight.apple.com/join/Pkxa5R1k

Stay tuned.

#MastoBlaster #iOS #Apple #Fediverse #Mastodon #snac #GoToSocial #Akkoma #ActivityPub

#MastoBlaster has its own #Fediverse account - powered by #snac

Follow @mastoblaster to receive all the updates, insights, etc.

#iOS #Fediverse #Mastodon #snac #GoToSocial #ActivityPub