Contact Vault: Backup is made and published by Dongfu He. AppBrain is an independent app data site and isn't affiliated with Dongfu He. The app name, icon, screenshots and description belong to Dongfu He and are shown as published on Google Play.
AppBrain's verdict
Niche- Total installs
- 29
- Last updated
- July 11, 2026
Contact Vault: Backup is a niche app, with 29 installs. It doesn't have enough ratings yet to judge what users think.
Installs
Tracked by AppBrain- Last 30 days
- 6
- Play install range
- 10+
- Launched
- July 2026
Installs over time
Contact Vault: Backup has been installed 29 times. Over the past 30 days, it has been installed 6 times.
Rankings
Google Play top chartsGoogle Play Rankings for Contact Vault: Backup
Competitors
Similar apps and more from Dongfu HeAlternatives to Contact Vault: Backup
More from Dongfu He
Releases
Updates seen on Google Play- Version
- 1.0.0
- Launched
- July 2026
User feedback
Ratings and reviews on Google PlayComments on Contact Vault: Backup for Android
We don't have enough comments to show example comments. Please check back later.
Technology
Found in the app by AppBrain- Ads
- No ads
- Price
- Free
- Libraries
- ?
- App size
- 1.05 MB
- Content rating
- Everyone
Technologies used by Contact Vault: Backup
About the app and developer
About Contact Vault: Backup
Contact Vault: Backup is a tools app developed by Dongfu He.
Install Statistics
Contact Vault: Backup has been installed 29 times. In the last 30 days, the app was installed 6 times.
User Ratings
The app has no ratings yet.
App Information
Contact Vault: Backup is freely available from Google Play. The app size is 1.05 MB. The latest version available is 1.0.0. The last update was on July 11, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play since July 2026.
App Performance Report
Get a detailed PDF report for Contact Vault: Backup with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for Dongfu He
Frequently asked questions about Contact Vault: Backup
Is Contact Vault: Backup free?
Yes. Contact Vault: Backup is free on Google Play.
Is Contact Vault: Backup still available?
Yes. Contact Vault: Backup is on Google Play, and the last update we saw was on July 11, 2026.
Does Contact Vault: Backup contain ads?
No. Google Play does not list Contact Vault: Backup as containing ads.
How large is Contact Vault: Backup?
Contact Vault: Backup is 1.05 MB.
Is Contact Vault: Backup suitable for children?
Google Play rates the content of Contact Vault: Backup as suitable for everyone.
How many times has Contact Vault: Backup been installed?
Google Play lists 10+ installs for Contact Vault: Backup.
Who made Contact Vault: Backup?
Contact Vault: Backup was developed by Dongfu He. It is listed in the tools category on Google Play.
What are the best alternatives to Contact Vault: Backup?
People looking at Contact Vault: Backup also look at these tools apps: Contacts Backup: VCF & CSV, ContactsXL: Backup & Restore, Export contacts, Contacts, Contacts Backup - Sync Restore.
Store listing
By Dongfu He, from Google Play“Back up, export, restore, and review contacts locally. No upload or ads.”
Description by Dongfu He Written by the developer, not by AppBrain. Click to read.
Main features:
Export contacts to CSV, Excel, or VCF
Create a local ZIP backup that this app can restore
Preview new and possible existing contacts before restoring
Create a safety backup before contacts are added
Scan for possible duplicates without changing contacts
Export duplicate reports as CSV or Excel
Export one contact with the Android contact picker
You choose every input and output file with Android's system file picker. CSV, Excel, and VCF exports are for other apps and cannot be restored by Contact Vault. Version 1.0 ZIP backups are not encrypted and do not include contact photos or account identifiers, so keep them in a trusted location.
Contact access is requested only after you start a feature that needs it. Contact editing access is requested only after you review a restore preview and confirm the restore. Restore adds contacts; it does not automatically delete, overwrite, or merge existing contacts.