通话与短信
Jami
自由且私密地分享
baresip+
VoIP User Agent app for Android based on baresip SIP library
baresip
基于 baresip SIP 库的 Android VoIP 用户代理应用
Session F-Droid
加密私人信使
SpamBlocker (Call & SMS)
Spam Call/SMS blocker
Logger
跟踪、分析并管理您的通话
QUIK SMS
Open source replacement to the stock SMS app on Android. A revival of QKSMS.
Element Classic
Previous generation Element
Launch Chat
Start a WhatsApp, Signal or Telegram chat without saving a number as a contact
Fossify Phone
使用 Fossify 电话解锁安全、开源的通话体验
Infomaniak kMeet
Free and secure videoconferencing solution
Fossify Messages
开源无广告的短信/彩信应用
Fossify Contacts
安全高效地管理联系人，带有 vCard 支持
SimpleX Chat
SimpleX Chat - e2e encrypted messenger without any user IDs - private by design!
Parcel - 取件码
自动解析收到的短信，并从中提取出地址和取件码信息
Messages
A fast messaging app designed to make conversations simple and effortless
FluffyChat
SMS2Email
Forwards SMS messages to SMTP (Email) server
Wire • Secure Messenger
Wire offers highly secure communication – anywhere and anytime.
Contacts
An open-source, fully-functional contacts app
MsgGo
开源、轻量、现代化的短信群发工具。
ViewCarousel
Circular carousel of user configurable views
Call Limiter
Limit call duration per contact and automatically hang up when time is up
SmsReply
Automatic SMS replies with customizable templates
SMS Import / Export
Imports and exports SMS and MMS messages and other data.
JMP SIM Manager
Companion app for the JMP eSIM Adapter
Privacy Cell
Verify that a phone is using the most secure cell protocols.
Cheogram
Chat on the Jabber network (XMPP protocol); focus on features for gateway users
Deku SMS
Deku is an SMS app that supports end to end encryption and photo sharing
Linphone - open source SIP client
SIP（VoIP）电话
