EteSync - Secure Data Sync is made and published by Tengu. AppBrain is an independent app data site and isn't affiliated with Tengu. The app name, icon, screenshots and description belong to Tengu and are shown as published on Google Play.

About EteSync - Secure Data Sync

EteSync - Secure Data Sync is a tools app developed by Tengu.

Install Statistics

EteSync - Secure Data Sync has been installed 50 thousand times. In the last 30 days, the app was installed 840 times.

User Ratings

EteSync - Secure Data Sync is rated 4.34 out of 5 stars. The rating is based on 410 ratings.

App Information

EteSync - Secure Data Sync is freely available from Google Play. The app size is 11.21 MB. The latest version available is 2.6.0. The last update was on October 18, 2025.

Technical Requirements

EteSync - Secure Data Sync requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since February 2017.

Description by Tengu (from Google Play)

Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars, and tasks (using Tasks.org and OpenTasks). For notes, please use the EteSync Notes application.

More data about EteSync - Secure Data Sync

Price	Free
Total installs	50 thousand
Recent installs	840
Rating	4.34 based on 410 ratings
Ranking	Not ranked
Version	2.6.0
App size	11.2 MB
Number of libraries	32
Designed for Android	5.0+
Suitable for	Everyone
Ads	No ads

App Performance Report

Get a detailed PDF report for EteSync - Secure Data Sync with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Screenshots

EteSync - Secure Data Sync Screenshot 1 of 5

EteSync - Secure Data Sync Screenshot 2 of 5

EteSync - Secure Data Sync Screenshot 3 of 5

EteSync - Secure Data Sync Screenshot 4 of 5

EteSync - Secure Data Sync Screenshot 5 of 5

Screenshots by Tengu, from the Google Play listing

Official page on Google Play

Alternatives to EteSync - Secure Data Sync

Google Play Rating history and histogram

300

Installs over time

EteSync - Secure Data Sync has been installed 50 thousand times. Over the past 30 days, it averaged 28 installs per day.

Changelog of EteSync - Secure Data Sync

Show changelog

Developer information for Tengu

Tengu

android@etesync.com

Legal name:

Address:

Phone number:

Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.

I'm the developer of this app

Comments on EteSync - Secure Data Sync for Android

★★★★★ Ryan Sipes · Sep 29, 2020

EteSync is a great tool in an age of mass surveillance by both governments and corporations. It puts the power of privacy back in the hands of the user, whilst making it easy to manage contacts, calendars, and tasks through existing popular apps - but with an encrypted backend. All around an amazing app.

★★★★★ Mykola Grybyk · May 7, 2024

I love the app. It works like a charm. I'm using it as an alternative to google calendar and contacts. Dear developers, thank you so much. I wish you all the best, please keep the product running! Cheers!

★☆☆☆☆ Caballero Martinez · May 8, 2024

Broken. Successfully used it for the two free weeks. After that I subscribed and paid for a yearly plan, but my account continued to be inactive and unpaid for over a week? Contacted support via email, they say payment is still broken???? Had to move all my data back out of etesync, what a waste of time :(

★☆☆☆☆ Igor Cryptor · Dec 18, 2023

Their service is unavailable for more than 1 day already. It's impossible to login as well. Support does not respond

★★☆☆☆ Liam Randall · Aug 24, 2023

Rapid summary: service does not recognize non-mainstream (Google, Apple) calendars and contact books - won't sync. File-based syncing cannot be automated. Doesn't seem to be any data recovery functionality. How are you supposed to get your saved data on your recovery device?? App won't parse .ics files if they're too big. The app has long roads to get to being useful.

★★☆☆☆ Damian Królik · Dec 31, 2021

Maybe I just wasn't patient enough, but I just needed a simple app for notes sharing, and I couldn't make it work with EteSync Notes - e.g. I don't understand how collections in EteSync are related to task lists in EteSync Notes, but they are not in sync. Perhaps it is just my ignorance, but I expect a more intuitive workflow for such a simple job.

Google Play Rankings for EteSync - Secure Data Sync

This app is not ranked

Technologies used by EteSync - Secure Data Sync

17 permissions · 32 libraries

Subscribe to see full permission and library details

Frequently asked questions about EteSync - Secure Data Sync

Is EteSync - Secure Data Sync free?

Yes. EteSync - Secure Data Sync is free on Google Play.

Is EteSync - Secure Data Sync still available?

Yes. EteSync - Secure Data Sync is on Google Play, and the last update we saw was on October 18, 2025.

Does EteSync - Secure Data Sync contain ads?

No. Google Play does not list EteSync - Secure Data Sync as containing ads.

What Android version does EteSync - Secure Data Sync require?

EteSync - Secure Data Sync runs on Android 5.0 and higher.

How large is EteSync - Secure Data Sync?

EteSync - Secure Data Sync is 11.21 MB.

Is EteSync - Secure Data Sync suitable for children?

Google Play rates the content of EteSync - Secure Data Sync as suitable for everyone.

How many times has EteSync - Secure Data Sync been installed?

Google Play lists 10,000+ installs for EteSync - Secure Data Sync.

How do people rate EteSync - Secure Data Sync?

EteSync - Secure Data Sync scores 4.34 out of 5 stars, from 411 ratings on Google Play.

Who made EteSync - Secure Data Sync?

EteSync - Secure Data Sync was developed by Tengu. It is listed in the tools category on Google Play.

What are the best alternatives to EteSync - Secure Data Sync?

People looking at EteSync - Secure Data Sync also look at these tools apps: Tuta Calendar: Secure Planner, Ouisync Peer-to-Peer File Sync, SNote - Encrypted Notes, Files, Lockbook: Private Notes, Sync - Secure cloud storage.

Apps other people are watching Top new apps Today's trending apps Price drops on Google Play Popular Tools Apps

AppBrain is an app data site, we track rankings, ratings, installs for all apps and games on Google Play and the App Store. AppBrain doesn't host app files or APKs, all install links go directly to the official store. All trademarks are owned by their respective owners.

More apps

EteSync - Secure Data Sync