Popular Android apps similar to Threema

DIGITS

T-Mobile USA

Reviews

9.5

Size

-

Updated

2026-08-06

DIGITS is a communication app for T-Mobile customers who want to manage additional phone lines from an Android device. It brings calls, text messages, voicemail, and missed-call information into one place while keeping each DIGITS line separate from a primary number. Users can switch between lines, contact people from a shared address book, and use the same number across compatible devices or a web client. With support for work, home, family, and privacy-focused situations, DIGITS makes multi-number communication easier to organize without carrying several phones.

TextMe

TextMe, Inc.

Reviews

8.9

Size

234.2 MB

Updated

2026-08-29

TextMe is a communication app that gives users a second phone number for calling and messaging over Wi-Fi or mobile data. It suits people who want a separate line for personal contacts, side projects, travel, or everyday conversations without adding another physical SIM. Users can send SMS and MMS, join group chats, make voice or video calls, manage voicemail, and contact international destinations. Number controls, message filters, forwarding options, and customizable alerts make the service easier to organize across phones and Android tablets.

Signal Private Messenger

Signal Foundation

Reviews

8.7

Size

126.9 MB

Updated

2026-06-30

Signal Private Messenger is a secure communication app for Android users who want private messaging, voice and video calls, group chats, media sharing, and phone-number-based registration. It opens with privacy-focused onboarding, permission prompts, and a phone number setup path before normal chats can be used. The app suits people who prioritize encrypted conversations and careful contact control. Because it declares contacts, camera, microphone, location, phone, SMS, media, notification, and foreground-service capabilities, users should review each permission before registration.

LINE

LINE (LY Corporation)

Reviews

8.6

Size

218.1 MB

Updated

2026-08-20

LINE is a communication app that keeps conversations, calls, and shared moments in one place across Android, desktop, and Wear OS. Users can message friends, join group chats, make voice or video calls, and add stickers or emoji when plain text is not enough. The Home area brings together contacts, birthdays, the sticker shop, and connected services, while Keep Memo offers a private chat for saving notes, links, photos, and videos. Its account-transfer options also help people move between phones or use a supported sub device without rebuilding every conversation from scratch.

WhatsApp

WhatsApp LLC

Reviews

8.5

Size

82.3 MB

Updated

2026-06-10

WhatsApp is a private messaging and calling app for Android users who want chats, groups, voice and video calls, Status, Channels, and media sharing in one place. It is designed for everyday communication with friends, family, communities, and work groups across mobile and linked devices.

AdGuard Mail

Adguard Software Limited

Reviews

8.4

Size

-

Updated

2026-08-23

AdGuard Mail is a privacy-focused communication app for people who want to use email without exposing their primary address to every website or sender. Create aliases for ongoing subscriptions and route their messages to a chosen recipient, or generate temporary addresses for one-time sign-ups and verification codes. The Android app introduces these ideas with a clear onboarding flow, explaining how temp mail and aliases serve different jobs. It helps keep newsletters and disposable sign-ups away from your main inbox while giving you more control over which addresses remain active.

MoyaApp

Moya App (Pty) Ltd

Reviews

8.2

Size

-

Updated

2026-08-12

MoyaApp is a South African communication and content app for staying connected when mobile data is limited. It lets you chat with friends and family in one-to-one or group conversations, share voice notes, and use voice or video calls when your connection supports them. The Discover area brings together news, live soccer scores, weather, jobs, education, government services, entertainment, and other everyday resources. Contact syncing helps you find people already using MoyaApp, while data-free text messaging on supported networks can make everyday communication more accessible. It is a broad mobile hub for conversation and useful local services.

Tuta Mail: Secure Email

Tutao GmbH

Reviews

7.7

Size

-

Updated

2026-08-31

Tuta Mail: Secure Email is a privacy-focused communication app for people who want a mailbox that keeps everyday conversations and contacts protected. It lets you add or register a Tuta account, read and send email, search the mailbox, and manage messages across Android and other clients. End-to-end encryption covers the mailbox, contacts, and the included calendar, while offline access, synchronization, swipe actions, and smart notifications support daily use. Light, dark, and additional theme choices make the interface easier to fit into personal routines. It suits users who want secure email without advertising or tracking.

TextFree Voice

Pinger, Inc.

Reviews

8.0

Size

46.76 MB

Updated

2026-07-21

TextFree Voice is a communication app that gives users a second phone number for calling and messaging over Wi-Fi or mobile data. After choosing a U.S. or Canadian number, people can send texts, make voice calls, receive voicemail, and keep personal and work conversations separate. Chats support photos, videos, GIFs, PDFs, audio messages, reactions, and group messaging. Contact controls, spam identification, auto-replies, and customizable tones help organize everyday communication. It is designed for users who want an internet-based line without adding another mobile plan.

Bloomz

BLOOMZ, INC.

Reviews

9.7

Size

-

Updated

2026-08-20

Bloomz is a school and childcare communication app that brings parents, teachers, students, and group leaders into one organized space. Families can join a class or group with an invitation code, while educators can share updates, photos, alerts, and event details without scattering conversations across separate channels. The app also supports private and group messaging, calendars, volunteer signups, and language-friendly communication for school communities. Its entry points for creating a group, joining an existing one, or signing in make it useful for keeping everyday education and childcare coordination in one place.

HomeWAV

HomeWAV LLC

Reviews

9.9

Size

79.2 MB

Updated

2026-07-25

HomeWAV is a communication app for people who want to stay connected with an incarcerated family member or friend from an Android phone. Visitors create an account, select the relevant facility and contact, then use supported options for video calls, voice calls, or messages. Approved users can also receive availability notifications, manage communication funds, and schedule eligible on-site or lobby visits. Because services and rates depend on each participating facility, the app is most useful as one place to handle approved contact, account details, and visit planning without repeated travel.

Inbox.lv

INBOKSS SIA

Reviews

9.6

Size

-

Updated

2026-08-25

Inbox.lv is a mobile email app for reading, replying to, and organizing Inbox.lv messages on Android. It brings multiple mailboxes, quick search and filters, folders, labels, attachment handling, and swipe actions into one compact workflow. Push notifications help users spot new messages, while contact and calendar synchronization keeps related information close to the inbox. Offline reading, notification controls, language choices, and optional file management add flexibility for daily use. An Inbox.lv account is required before reaching mailbox features, so the app suits users already using this service.

Mood SMS - Messages App

Glad Appvestor

Reviews

9.4

Size

-

Updated

2026-08-19

Mood SMS is a customizable SMS and MMS messaging app for people who want everyday conversations to feel more personal. It brings chats, contacts, and group conversations into a familiar hub while adding themes, colors, backgrounds, emoji stickers, and expressive media tools. You can send voice messages, schedule texts, follow up after calls, and keep selected conversations out of the main list. Quick access to contacts, a Mood Bot entry, and a simple overflow menu make common tasks easy to reach. It suits Android users who want more control over how messages look and work.

Zangi

Secret Phone, Inc.

Reviews

9.3

Size

62.7 MB

Updated

2026-07-01

Zangi is a private messaging app for people who want to chat, call, and share media without tying registration to a personal phone number. It assigns a private Zangi number that friends, family, or colleagues can exchange directly. Users can send text and voice messages, place voice or video calls, and share photos, videos, and files from the same conversation. End-to-end encryption and on-device communication history support a more controlled space for personal or small-group conversations, while bandwidth-aware delivery is designed for everyday networks that are fast, crowded, or unreliable.

Contacts

Google LLC

Reviews

9.5

Size

-

Updated

2026-07-22

Contacts is Google's address book app for creating, finding, and keeping personal or work contact details organized on Android. Users can add phone numbers, email addresses, photos, and labels, then filter the list by contact type or account. Google Account backup and sync make the same records available across signed-in devices, while Trash and restore tools help recover information after a change or phone replacement. Highlights, favorites, birthdays, reminders, recent contacts, and duplicate cleanup turn a basic contact list into a practical hub for everyday communication.

PDing Studio

PDing Inc

Reviews

9.2

Size

66.4 MB

Updated

2026-02-26

PDing Studio is a creator-focused communication and broadcasting app for people who want to build a channel and connect with supporters on Android. After choosing Google, Facebook, X, or email sign-in, new members set a username and complete the service agreements before entering the studio. Approved PD creators can use the platform for livestreams, exclusive video content, one-to-one chats, video calls, and fan gifts. The application path also helps aspiring creators request broadcasting privileges, making the app a practical starting point for managing creator access and closer fan interactions.

Textra SMS

Delicious

Reviews

8.9

Size

-

Updated

2026-08-23

Textra SMS is a customizable Android messaging app for people who want more control than a stock SMS client. It brings SMS and MMS conversations into a clean inbox, with quick search, an overflow menu for everyday actions, and a compose button for starting a new message. Users can schedule texts, delay sending, share photos or GIFs, record voice memos, react to messages, and block unwanted contacts. Theme colors, bubble styles, fonts, emojis, signatures, and notification behavior can be adjusted for a more personal texting routine.

Reddy

DC Sport Soft LTD

Reviews

9.0

Size

-

Updated

2026-08-05

Reddy is a corporate messenger designed for teams that need communication and everyday coordination in one mobile workspace. Colleagues and clients can exchange messages, share files and media, organize contacts, and keep conversations grouped around ongoing work. Voice and video calls support direct discussions and larger team meetings, while reminders and task tracking help users follow commitments without leaving the app. Search, saved messages, chat folders, and notification controls make busy communication easier to manage across a typical working day.

Sonoran CAD

Sonoran Software Systems LLC

Reviews

9.1

Size

10.51 MB

Updated

2020-03-06

Sonoran CAD is a mobile computer-aided dispatch and records management app built for roleplay gaming communities. Dispatchers, emergency-service units, and community members can use it to stay connected to a shared CAD workspace from an Android phone or tablet. The service supports real-time unit coordination, call handling, record searches, and community-specific workflows. Account-based access links each user to the correct organization, while customization and game integrations help the system fit different patrol styles. It gives active roleplay teams a portable way to manage incidents and operational information.

TalkingParents

Monitored Communications, LLC

Reviews

8.8

Size

182.06 MB

Updated

2026-06-21

TalkingParents is a co-parenting communication app designed for separated or divorced parents who need one organized place to coordinate around their children. It combines timestamped messaging, recorded phone and video calls, a shared calendar, expense tracking, and secure information storage so important decisions do not disappear across scattered texts and emails. Parents can match accounts, manage schedules, document payments, keep private notes, and create records for later reference. By keeping communication and family logistics together, the app helps users maintain clearer boundaries and a consistent history of their shared parenting activity.

Discord

Discord Inc.

Reviews

8.8

Size

166.3 MB

Updated

2026-06-27

Discord is a communication app for Android users who want community servers, direct messages, voice rooms, video calls, and gaming-friendly group spaces. The launch flow opens to a welcome screen with register and login choices, so account access is required before chats and servers become usable. It is suited to friends, creators, game groups, study circles, and online communities that need persistent channels. The package declares camera, microphone, contacts, media, overlay, notification, billing, and biometric capabilities, which should be reviewed before use.

2ndLine

TextNow, Inc.

Reviews

8.6

Size

-

Updated

2026-08-19

2ndLine is a communication app that adds a separate phone number to an Android device for calling and texting. It is designed for people who want to keep a personal line apart from everyday conversations, online contacts, or a second communication role. Users can choose a local U.S. area code, make Wi-Fi calls, exchange text, picture, and video messages, and reach contacts in the United States and Canada. Caller ID, quick replies, customizable tones, backgrounds, and a home-screen widget add practical control. Optional international calling extends its use beyond local conversations.

Covideo

Covideo, LLC

Reviews

8.5

Size

-

Updated

2026-08-21

Covideo is a business video-messaging app for sales, service, and customer-facing teams that need a more personal way to communicate. Users can record a message with a phone’s front or rear camera, upload a clip from the camera roll, and prepare it for sharing from the same workflow. Video links can be sent through email, text, social, or other mobile apps, while viewer notifications and engagement details help teams follow up at the right time. A library keeps recordings accessible across devices, making personalized outreach practical when work happens away from a desk.

Invoice Simple

Zenvoice Software Inc

Reviews

8.5

Size

-

Updated

2026-08-20

Invoice Simple is a mobile invoicing and payment app for freelancers, contractors, and small business owners who need to bill clients while working from a phone. It lets users create professional invoices, estimates, and receipts, then customize documents with business details, logos, taxes, discounts, photos, and signatures. Invoices can be sent by email, text, WhatsApp, or PDF, while payment status, reminders, expenses, and reports help keep daily billing organized. Its focused workflow suits people who want a quicker way to look professional and get paid without setting up a full accounting suite.