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Roaming Borders

F-Droid

Open source

Avoid unexpected roaming charges

Version
1.0.0
Size
2 MB
Updated
Nov 3, 2025
Get from Download APK (v1.0.0)
Signing certificate on record

About this app

Why this app?

When you travel near country borders, your phone may automatically connect to a stronger cell tower across the border—even if you never left your country. This can quickly result in costly roaming fees.

Manually toggling roaming is inconvenient and easy to forget. Roaming Borders automates the guardrails so you don’t have to.

What it does

• Block roaming when you don’t want it: Select allowed countries; if your device connects outside that list, data traffic is blocked.

• Avoid surprise charges: Prevent accidental cross-border roaming near national frontiers.

• Simple presets or full control: Choose ready-made country presets or build your own list for upcoming trips.

• On-device only: Uses Android’s VpnService as a local firewall. No tunneling to servers.

How it works

Roaming Borders runs a lightweight, on-device VPN that filters traffic based on your current country.

• When your current country is not in your allow-list → block data traffic system-wide.

• When your current country is allowed → allow traffic as normal.

• When connected to Wi-Fi, the guard pauses automatically and resumes once Wi-Fi disconnects.

Note on reboot: After restarting your phone, the guard re-enables after a short delay. To be extra safe, enable Airplane mode before restarting.

Licensed under GPL-3.0-or-later, by Simon Leistikow.

OfficialSignature VerifiedOpen Source

What's New in v1.0.0

Imported from the F-Droid repository index.

Version history

v1.0.0Latest
Signature continuous

Nov 3, 2025 · 2 MB · Android API 2336 · code 1

Imported from the F-Droid repository index.

ACCESS_NETWORK_STATEACCESS_COARSE_LOCATIONREAD_PHONE_STATEFOREGROUND_SERVICERECEIVE_BOOT_COMPLETEDFOREGROUND_SERVICE_SPECIAL_USEPOST_NOTIFICATIONSREQUEST_IGNORE_BATTERY_OPTIMIZATIONSINTERNETcom.sleistikow.roamingborders.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

SHA-256 e45331b0b04e0c9712d52f8de85441b976c57443761baf1f6a0d81a751a8e720

Will it run on your device?

CompatibilityLikely to run

78%

  • Runs on a broad range of modern Android versions.
  • ABI coverage is focused on newer 64-bit devices.
  • Aligned with the latest Android target SDK expectations.
What changed in this release
Size delta
0 MB
Added permissions
ACCESS_NETWORK_STATE, ACCESS_COARSE_LOCATION, READ_PHONE_STATE, FOREGROUND_SERVICE, RECEIVE_BOOT_COMPLETED, FOREGROUND_SERVICE_SPECIAL_USE, POST_NOTIFICATIONS, REQUEST_IGNORE_BATTERY_OPTIMIZATIONS, INTERNET, com.sleistikow.roamingborders.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Removed permissions
None

Installation Guide

1

Open Settings on your Android device

2

Go to Security → Unknown sources (or Install unknown apps)

3

Enable "Allow from this source" for your browser or file manager

4

Open the downloaded APK file from your Downloads folder

5

Tap "Install" and wait for installation to complete

6

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

Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.

What the signing certificate proves

Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.sleistikow.roamingborders is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.

How to roll back to an earlier version

No earlier build is on record for Roaming Borders, so there is nothing to roll back to yet. When a second version is published, this section will explain how to move between them safely.

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 Roaming Borders, and a listing is removed when the evidence for it stops holding up.

Get Roaming Borders

Every source we list for com.sleistikow.roamingborders is legality-reviewed. Pirated or cracked builds are never offered.

Other sources

F-Droid listing

official

F-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.

Source code

verified publisher

The upstream repository this build is compiled from.

We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.

App Information

Developer
F-Droid
Category
Social
Android
6.0+
Architectures
Version
1.0.0 (code 1)
Size
2 MB
Updated
Nov 3, 2025
Package name
com.sleistikow.roamingborders

Security Verification

File integrity
SHA-256 recorded
Signing certificate
Fingerprint on record
Official source
Download APK (v1.0.0)

We record provenance; we do not run malware scans. Verify the hash yourself before installing.

SHA-256 Hash

e45331b0b04e0c9712d52f8de85441b976c57443761baf1f6a0d81a751a8e720

Signing certificate

6708a4737fcd1e4209785e80d904342d30a3b8ce9202cc98e8ccaa14505dd260

Permissions Required

What each permission lets Roaming Borders do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.

ACCESS_NETWORK_STATECheck whether the device is online and on what kind of connection.
ACCESS_COARSE_LOCATIONRead your approximate location.
READ_PHONE_STATERead phone status and identity, such as the current call state.
FOREGROUND_SERVICEKeep running in the background with a visible notification.
RECEIVE_BOOT_COMPLETEDStart automatically when the device finishes booting.
FOREGROUND_SERVICE_SPECIAL_USERun a background service for a purpose the developer declares.
POST_NOTIFICATIONSShow notifications.
REQUEST_IGNORE_BATTERY_OPTIMIZATIONSAsk to keep running without battery limits.
INTERNETSend and receive data over the internet.
com.sleistikow.roamingborders.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Previous Versions

No earlier build is on record — this is the first release we have listed.

Signature verified

The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.

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