Exfilac

6 Downloads 14 Views v1.1 18.32 MB 4.1+

Download APK

(18.32 MB)

Editor's Overview

Exfilac is a connectivity application developed by Mark Raynsford, packaged as a single Android APK of version 1.1 weighing in at 18.32 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 18.32 MB, so it installs quickly even on modest connections.
This build is signed by "Mark Raynsford" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

The exfilac application is a simple application that aims to do one thing well:
Get data out of Android devices and into S3 buckets.

Features:

- The application can work with any S3-compatible storage provider. This
includes Amazon AWS, Vultr Object Storage, IDrive®, and many other commercial
offerings. Additionally, the application can work with self-hosted S3 storage
solutions such as MinIO.
- The application can (recursively) upload the contents of any directory on an
Android device to which it has been granted access. The set of directories
is configurable.
- The application conserves precious bandwidth by avoiding uploading files that
already exist on the remote storage. The cryptographic hashes of files are
computed locally and files are only uploaded if the hashes of
the files on the remote server do not match.
- The application can be configured to upload files on a timed schedule,
and/or in response to various events occurring on the device such as a photo
being taken, or the network becoming available.
- The application vigorously respects the privacy of users: The application
contains no telemetry or analytics of any kind, and never collects any user data.
- Development of the application is performed in the open. The complete source code is made available under
an extremely liberal ISC license, and development and bug tracking is handled
in a public GitHub repository.
- The application rejects bug-prone Android programming practices and libraries
and instead strives for correctness and stability using battle-hardened,
well-tested components designed outside the traditional Android ecosystem.
- The application adopts a cautious development approach and does not pursue
huge sets of complex features. The application attempts to adhere to the Unix
philosophy and provide a simple, sharp tool that does one thing well.
- The application attempts to respect the intelligence of users. Technical
details of many aspects of the system are clearly displayed onscreen, and
important information is not hidden in the misguided pursuit of
"user-friendliness".
- The application is comprehensively documented.

Details

Version	v1.1
Size	18.32 MB
Developer	Mark Raynsford
Category	Connectivity
Package	com.io7m.exfilac.main
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	6

Frequently Asked Questions

Is Exfilac free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Exfilac require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Exfilac safe to install?
We link to the exact APK published by Mark Raynsford. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Exfilac?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Exfilac

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded com.io7m.exfilac.main.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Exfilac» by Mark Raynsford and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.