Franz 6 - All your messaging apps in one window — with private AI
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WhatsApp, Slack, Signal, Telegram, Gmail, Outlook and 75+ services in one fast desktop app — no more juggling ten browser tabs. Franz 6 adds a built-in AI assistant that summarizes long chats, transcribes voice notes, triages your inbox and drafts replies — all on-device, so your conversations stay private (EU-hosted Cloud optional). 1M+ downloads. Free, cross-platform, made in Vienna. Winner: Product Hunt Golden Kitty, Desktop App of the Year 2016.
Replies
The on-device AI plus optional EU-hosted cloud is a smart split — when does the AI actually leave the device? If I record a voice note, is it transcribed locally or sent to Franz's servers before the summary comes back?
Franz Messenger
@sounak_bhattacharya thanks! Transcription is happening exclusively on your device using whisper.
Question from a guy who has not experience in mac development and the system beside, which is needed to support all the messengers/tools nicely:
Why is Franz so big… I just stumbled upon it as I used Franz back then, and now I want to give it a try as i am currently using 2 apps and want to combine them to Franz maybe again.
Beeper is around 550mb
Ferdium has 450mb
and Franz 6 has 1500mb ← why 1.5gb?
Thank you!
Franz Messenger
@grienauer Good question. A few things drive it.
Signal is the biggest one. There's no Signal web client to wrap, so the only way to support it properly is to ship the actual Signal binary, and that alone adds real weight.
The other part is the on-device AI. To keep our privacy promise, those features run locally, which means the models have to live on your machine. Some ship bundled, others download lazily on first use. I decided that per feature to keep the base size as small as I reasonably could.
So it's not quite a like-for-like comparison with Ferdium or Beeper. Stripped back to just the web-wrapper basics, Franz would land in the same range as those two. The extra weight is everything Franz 6 does beyond wrapping web apps, with native Signal and local AI being the big two.
Great to have you back either way. Give it a try and let me know how it feels!
Franz Messenger
@emanresu Beeper isn't really free either. Like Franz, it has a free tier, but past that you're at $9.99/month for Beeper Plus, which is more than Franz Pro.
The bigger difference is architectural. Beeper's cloud mode routes your messages through Beeper's own servers, so on top of the service provider, you've now got a second party sitting in the middle of your private conversations. They've added an on-device option for privacy, which is good, but the product is built around their cloud and the full experience lives there.
Franz works the other way around by default. Each service runs in its own isolated container on your machine and talks directly to the provider. There's no Franz server between you and your messages, because there's no Franz cloud relaying them in the first place. Same with the AI: catch me up, transcription and email classification run locally on your device, so your conversations aren't shipped off somewhere to be processed. And for the few things that genuinely benefit from the cloud, we keep them in the EU with zero data retention.
So it's not really free vs paid. It's a question of who you're willing to put in the middle of your private messages. We'd rather the answer be nobody.
I used to think tools like this were just “all messengers in one window,” but the catch-up angle makes it more useful.
The real pain is not opening WhatsApp, Slack, Gmail, and Signal. It is remembering where a client said something, which thread has the latest version, and what needs a reply today.
If Franz can summarize across channels without mixing up context, that would save a lot of small daily friction.
I remember Franz as the “put all messengers in one app” tool, but the private AI layer makes the update more useful.
The daily problem is not just having too many apps open. It is coming back after a few hours and figuring out what changed across Slack, WhatsApp, Gmail, and Telegram without reading every thread.
On-device summaries and reply drafts are the right direction here. I’d mostly care about whether Franz can keep work and personal context separated cleanly, because mixing those up would be the one thing that breaks trust fast.