Delta Chat vs Olvid

Delta Chat8.6Visit Olvid7.2Visit

Higher score Delta Chat #6 in Encrypted Messaging Apps 8.6/10 Free plan Free plan✓ 3 of 3 features Visit Delta Chat

vs

Olvid #20 in Encrypted Messaging Apps 7.2/10 Free plan · 30-day trial Free planFree trial✓ 3 of 3 features Visit Olvid

• Delta Chat fits best

  Open-source messaging with email interoperability

• Olvid fits best

  Organizations needing identity-free secure chat

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Side by side

Feature	Delta Chat 8.6/10 Visit ↗	Olvid 7.2/10 Visit ↗
At a glance
Editor score	8.6	7.2
Ranking	#6 in Encrypted Messaging Apps	#20 in Encrypted Messaging Apps
Best for	Open-source messaging with email interoperability	Organizations needing identity-free secure chat
Pricing model	Free	Free plan + paid
Starting price	Free plan	€4.99/user/mo
Free plan	✓	✓
Free trial	—	30 days
Deployment	Desktop, Mobile	Cloud, Desktop, Mobile
Platforms	Windows, macOS, Linux, iOS, Android	Web, Windows, macOS, Linux, iOS, Android
Support	Community, Docs	Email, Docs
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Delta Chat 3/3 · Olvid 3/3
Desktop app	✓	✓
Voice and video calls	✓	✓
Disappearing messages	✓	✓
Specs
Encryption coverage	Default	Default
Maximum group size	Not checked yet	Not checked yet
Linked device limit	Not checked yet	Not checked yet
Encrypted backups	None	End_to_end
Our review
Pros	Default end-to-end encryption across messages and attachments Native apps for Android, iOS, Windows, macOS, and Linux Channels, calls, groups, disappearing messages, and Webxdc apps	No phone number or email required Encrypted messaging, calls, backups, and ephemeral messages Apps for Android, iOS, macOS, Windows, and Linux
Cons	Exported backups are not encrypted Groups are practically recommended for no more than 150 members Messaging depends on chatmail relays or compatible email servers	Outbound calls require a paid plan Multi-device use is not included in the Free plan Advanced enterprise controls require the Enterprise plan
Our verdict	Delta Chat is a free, open-source messaging app for private conversations, groups, channels, and one-to-one audio or video calls. It is designed for people who want default end-to-end encryption across mobile and desktop while retaining… Read the review →	Olvid is an encrypted messaging application for individuals, teams, and organizations that want private communication without linking an account to a phone number or email address. The Free plan includes messaging and attachments, secure… Read the review →

Strengths and trade-offs

• Delta Chat — where it wins

  • Default end-to-end encryption across messages and attachments
  • Native apps for Android, iOS, Windows, macOS, and Linux
  • Channels, calls, groups, disappearing messages, and Webxdc apps

  Where it doesn't

  • Exported backups are not encrypted
  • Groups are practically recommended for no more than 150 members
  • Messaging depends on chatmail relays or compatible email servers

• Olvid — where it wins

  • No phone number or email required
  • Encrypted messaging, calls, backups, and ephemeral messages
  • Apps for Android, iOS, macOS, Windows, and Linux

  Where it doesn't

  • Outbound calls require a paid plan
  • Multi-device use is not included in the Free plan
  • Advanced enterprise controls require the Enterprise plan

• Delta Chat8.6/10 · Free plan

  A free, open-source messenger that combines default encryption with email interoperability.

  Visit Delta ChatFull verdict →
• Olvid7.2/10 · Free plan · 30-day trial

  A privacy-focused chat app with broad platform support and paid business controls.

  Visit OlvidFull verdict →