SimpleEmail

Simple and minimalistic email appGPL-3.0-only

You Have Mail

Email Notification without Google Play ServicesAGPL-3.0-only

FairEmail

Fully featured email client. Neat, intuitive user interface. Privacy friendlyGPL-3.0-only

SimpleLogin | Anti-spam

Protect your email inbox with a secure and open source solution by SimpleLoginApache-2.0

Thunderbird: Free Your Inbox

Thunderbird is a 100% open source, privacy focused email app.Apache-2.0

Lightning Address to Invoice

Allows paying to email-like Lightning addresses from unsupported walletsApache-2.0

BlitzMail

Share content and notes via emailAGPL-3.0-or-later

Inbox Pager

Read and write e-mailsGPL-3.0-only

addy.io

Anonymous Email ForwardingMIT

Tuta Mail

Encrypted email & calendar service - easy to use, secure by design.GPL-3.0-or-later

K-9 Mail

Full-featured email clientApache-2.0

Proton Pass: Password Manager

Password manager created by the scientists who met at CERN behind Proton Mail.GPL-3.0-or-later

Delta Chat

Decentralized private messenger with chat-shared tools and games.GPL-3.0-or-later

mail

is a secure and open source e-mail clientApache-2.0

Electrum Bitcoin Wallet

Fast and self-custodial wallet for Bitcoin and the Lightning NetworkMIT

Oversec

Privacy for All Apps! Encrypt and Disguise Messages in All Your Apps!GPL-3.0-or-later

Organic Maps: Hike, Bike, Drive Offline

Navigate with Privacy - Community-Driven & Open-SourceApache-2.0

Ltt.rs

Simple and maintainable Android e-mail clientApache-2.0

Invoice Ninja

Invoice your clients, accept payments, track expenses & time billable-tasksAAL

Turtl

Request missing icons in your icon packGPL-3.0-only