Pelton AlternativesOnly apps categorised as Instant Messengers

The best Instant Messenger alternative to Pelton is Thunderbird, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 10 alternatives to Pelton, but unfortunately only two of them are Instant Messengers.

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Pelton alternatives are mainly Calendar Apps, but if you're looking for Email Clients or Instant Messengers you can filter on that. These are just examples - use the filter bar below to find more specific alternatives to Pelton.

More about Pelton

Pelton alternatives page was last updated Aug 5, 2026

Thunderbird
2602 likes
Cross-platform email client supporting multiple identities, chat, and strong filtering. Extend functionality with add-ons like RSS/Atom feed readers and PGP support.
94 Thunderbird alternatives
Cost / License
Free
Open Source (MPL-2.0)
Application types
Email Client
Calendar
Origin
United States
Platforms
Mac
Windows
Linux
Android
BSD
AppImageHub
Snapcraft
Flathub
PortableApps.com
F-Droid
Haiku
Homebrew
Chocolatey
+8
Is Thunderbird a good alternative to Pelton?
Betterbird
86 likes
Betterbird, a soft fork of Mozilla Thunderbird, improves user experience with advanced features, bug fixes, security patches, and multi-row descriptions similar to Outlook. Compatible with multiple platforms and can be used alongside Thunderbird, sharing the same profile.
36 Betterbird alternatives
Cost / License
Free
Open Source
Application type
Email Client
Origin
Germany
EU
Platforms
Mac
Windows
Linux
Flathub
Chocolatey
+9
Is Betterbird a good alternative to Pelton?

2 of 2 Pelton alternatives