Koler vs SimpleX Chat
Side-by-side comparison of two open source alternatives
Koler
Koler’s ongoing call UI makes everything easier. Its uses swipes and minimalistic design, making everything more beautiful, intuitive, yet still productive. In an incoming call, you can do the following before answering: * Reject and send the call a SMS * Reject in a specified amount of seconds * Answer in a specified amount of seconds In an ongoing call you can: * Reject in a specified amount of seconds The app’s main goal is to be more intuitive and comfortable, For that reason, the swipes are the main way of controlling the app, making it much smoother to use. Dialer: * Call - Swipe up * Delete number - Swipe left * Collapse dialer - Swipe on the contacts list Incoming Call: * Open keypad - Swipe up * Reject/End - Swipe left * Answer - Swipe right * Send sms - Swipe up on the send SMS overlay
SimpleX Chat
SimpleX - the first messaging platform that has no user identifiers, not even random numbers! Security assessment was done by Trail of Bits in November 2022. SimpleX Chat features: end-to-end encrypted messages, with editing, replies and deletion of messages. sending end-to-end encrypted images and files. single-use and long-term user addresses. secret chat groups - only group members know it exists and who is the member. end-to-end encrypted audio and video calls. private instant notifications. portable chat profile - you can transfer your chat contacts and history to another device (terminal or mobile). SimpleX Chat advantages: Full privacy of your identity, profile, contacts and metadata: unlike any other existing messaging platform, SimpleX uses no phone numbers or any other identifiers assigned to the users - not even random numbers. This protects the privacy of who you are communicating with, hiding it from SimpleX platform servers and from any observers. Complete protection against spam and abuse: as you have no identifier on SimpleX platform, you cannot be contacted unless you share a one-time invitation link or an optional temporary user address. Full ownership, control and security of your data: SimpleX stores all user data on client devices, the messages are only held temporarily on SimpleX relay servers until they are received. Decentralized network: you can use SimpleX with your own servers and still communicate with people using the servers that are pre-configured in the apps or any other SimpleX servers. You can connect to anybody you know via link or scan QR code (in the video call or in person) and start sending messages instantly - no emails, phone numbers or passwords needed. Your profile and contacts are only stored in the app on your device - our servers do not have access to this information. All messages are end-to-end encrypted using open-source double-ratchet protocol; the messages are routed via our servers using open-source SimpleX Messaging Protocol. Please send us any questions via the app (connect to the team via settings!), email us or submit an issue on GitHub. Follow us on Mastodon (@simplex@mastodon.social), Twitter (@SimpleXChat) and Reddit (r/SimpleXChat) for the latest updates. Once you install SimpleX Chat, join the group of users via this link to share your ideas and feedback.
| Feature | Koler | SimpleX Chat |
|---|---|---|
| License | GPL-3.0-only | AGPL-3.0-or-later |
| Install sources | F-DroidGitHub | F-DroidGitHub |
| Categories | SMSMessaging | SMSMessaging |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |