Keep track of the people you have recently been with
About this app
Contact Diary is a simple app that allows you to keep a record of the people you have met and the events you have attended to recently. In the undesired event that you test positive for COVID-19, Contact Diary is a place where to quickly find who you must warn about the situation.
How it works Every day Contact Diary will prompt you to insert the events you have attended and the people you have been with during the day. Through some simple forms you will be able to store the essential information about your contacts, in case you need to retrieve it. Just that. Simple, right? ;)
Features
• Configurable notification time, so the prompt does not interfere with your daily workflow.
• Show only potentially risky contacts.
• Automatic removal of entries older than 15 days.
• Export your latest contacts to a CSV file that you can share with the authorities.
• JUST ONE PERMISSION, that needed for the app being able to notify you after device restarts. Nothing else.
• In particular, NO INTERNET permission. The information entered is yours, and it never leaves your device.
FAQ - Wait, isn't this what Governments' contact tracing apps are doing? No. The goals of Governments' contact tracing apps and of Contact Diary are inherently different. Governments' contact tracing apps notify you when you have been at risk, and Contact Diary serves to remember who you must notify if you test positive.
- Is this app BETTER than Governments' contact tracing apps? No. Governments' contact tracing apps may account for contacts that you may not be aware of, like the person sitting in a neighboring table at a restaurant, or that other person using the same bus to go to work. Contact Diary IS NOT A REPLACEMENT TO GOVERNMENTS' CONTACT TRACING APPS.
- Is this app WORSE than Governments' contact tracing apps? No. Government's contact tracing apps crucially rely on all persons interacting to have the app in order to do proper notifications. With Contact Diary, you just need yourself to keep track, and you can easily notify people (or places) that do not use conventional contact tracing apps.
- Will this app share the information I input? NO. The app has no permissions, so there is no way that it can connect to the internet. The information you insert will never leave your device. Even more, entries in the diary are automatically eliminated when they become older than 15 days.
Support If you find a bug, have an idea on how to improve Contact Diary or have a question, please visit the Contact Diary project page on GitHub: https://github.com/apozas/contactdiary
Licensed under GPL-3.0-or-later, by Alex Pozas-Kerstjens.
What's New in v1.4.14
Imported from the F-Droid repository index.
Version history
Sep 25, 2023 · 5.3 MB · Android API 14–34 · code 35
Imported from the F-Droid repository index.
SHA-256 d4ae7e833350096e177e4a4ea0a4bc59cd893053e27c1f6f20fd8a4744b4287e
Feb 20, 2022 · 4.8 MB · Android API 14–31 · code 34
Imported from the F-Droid repository index.
- This update brings the translation to Hindi (thanks to PrathameshJadhav33!)
- If you want to have the QR system in your region implemented, write an issue in https://www.github.com/apozas/contactdiary, and if you want to help translating Contact Diary to your language, please visit http://www.crowdin.com/project/contactdiary
SHA-256 2b6307c662e11ee148d6be9c1bfc1747bb90185e220cbc4c225e34075ed52dad
Feb 9, 2022 · 4.8 MB · Android API 14–31 · code 33
Imported from the F-Droid repository index.
- This update includes some small fixes.
- • When you write long lists of companions, the all will now appear in multiple lines
- • The begin time is now correctly saved when importing an event from a QR code
- • The Indonesian translation has been updated
- If you want to have the QR system in your region implemented, write an issue in https://www.github.com/apozas/contactdiary, and if you want to help translating Contact Diary to your language, please visit http://www.c
SHA-256 1b593a91e91d4fc0ab8066fd9c11b70decfbea12101973b273eb7aec1b97b706
Will it run on your device?
73%
- Runs on a broad range of modern Android versions.
- ABI coverage is focused on newer 64-bit devices.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
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How to roll back to an earlier version
If the current release misbehaves, 1.4.13 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Contact Diary first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Contact Diary, and a listing is removed when the evidence for it stops holding up.
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Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
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App Information
Security Verification
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SHA-256 Hash
d4ae7e833350096e177e4a4ea0a4bc59cd893053e27c1f6f20fd8a4744b4287e
Signing certificate
38eaa85aa441ba10494b382b04919377147b2ecfc5e87868908046cbe4e376ed
Permissions Required
Previous Versions
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