TypeApp

Multi-service-compatible mail client

K-9 Mail

Open-source multi-account email client

myMail

Unified email account manager

Cleanfox

Get rid of spam at the drop of a hat

Mail.Ru - Email App

Mail.Ru's email app for Android

VK Mail

The email client from VK

Solo Notifier

Email notifier with support for calls and messages

QQmail

Email manager

Libero Mail

Email app compatible with several providers

Tutanota

Send end-to-end encrypted emails

Nine - Email & Calendar

Extend the functions of your email client

ProtonMail

The CERN's safe email service

Samsung Email

The email client optimized for Samsung smartphones

WEB.DE Mail & Cloud

A German mail manager

Petal Mail

Huawei's e-mail application

Yahoo Mail Go

The lightweight version of Yahoo's email app

AccuBattery

Unleash the full potential of the battery on your Android device

360 Battery Plus

Optimize your battery life

2x Battery

Extend your battery life

Pika!

Customize the loading screen of your Android

CPU Tuner

The most complete battery manager

Battery Doctor

Manage your battery life and save on battery consumption

Battery Guru

An app that shows your device's battery information

Purify

Extend your Android battery life

Super Battery

Extend the life of your phone's battery

Brevent

An app to control background processes

Battery Sound Notification

Configure audio notifications that report on battery status

Repair Battery Life

Extend the life of your smartphone battery

DU Battery Saver

Extend your battery life and improve its performance

MTK Engineering Mode

Access the secret and hidden menu of your MTK mobile

Kaspersky Battery Life

Easily extend your battery life