v0.8 — translated dialogs, rating prompt, source link

Data Saver — Usage & Blocker, version 0.8 (versionCode 8).

Same build as the Google Play release of this version.

What changed since 0.7

• The bulk-restrict and monthly-bundle dialogs are translated. Their titles, bodies and
  buttons were English string literals in code, so on an Arabic, Urdu or Hindi phone the
  dialog that asks you to approve restricting five apps at once appeared in English. Three
  more buttons used the framework's cancel, which resolves from the system locale rather
  than the app's chosen one.
• "Restrict 5 apps?" counts correctly in languages with more than two plural forms.
• A Source code row in Settings, opening this repository.
• A rating prompt, once, after a week of blocking actually running. Decline and it waits
  a month. It is the app's own dialog; no Play library is linked.
• One build, no flavours. The Play in-app review library was removed, so the only
  dependency is androidx.core:core-ktx and the dex contains no com/google/android/play.

Permissions

Six, and no INTERNET. Check it yourself:

aapt dump permissions DataSaver-v0.8.apk

Permission	Why
ACCESS_NETWORK_STATE	tell mobile data from Wi-Fi
FOREGROUND_SERVICE + FOREGROUND_SERVICE_SPECIAL_USE	keep the blocking engine alive
PACKAGE_USAGE_STATS	read per-app data figures (you grant this by hand)
POST_NOTIFICATIONS	the engine's own status notification
RECEIVE_BOOT_COMPLETED	restore blocking after a reboot

Blocking uses VpnService in package-list mode — no packet forwarding, no tunnel, nothing
leaves the device. No analytics, no crash reporter, no account.

Verifying this APK

sha256sum -c SHA256SUMS.txt

Signed by CN=Anubis Productions, OU=DataGate, O=Anubis Productions, C=EG, SHA-256
fingerprint:

bd:9e:80:07:d5:42:cb:e1:c7:78:34:fa:c1:4f:27:08:73:49:9f:39:38:55:47:66:8c:89:6c:9c:ae:16:2c:02

This APK carries the upload key, so its signature differs from the Play build, which Google
re-signs. Install one or the other, not both.

v0.7 — first public release

Data Saver — Usage & Blocker, version 0.7 (versionCode 7).

This is the build that went to Google Play production.

What it does

Measures how much mobile data each app uses, and blocks the ones you choose
— per network, so an app you block on mobile data stays unrestricted on Wi-Fi.

Permissions

Six, and no INTERNET. The app cannot talk to the network at all; verify it
yourself from the APK:

aapt dump permissions DataSaver-v0.7.apk

Permission	Why
ACCESS_NETWORK_STATE	tell mobile data from Wi-Fi
FOREGROUND_SERVICE + FOREGROUND_SERVICE_SPECIAL_USE	keep the blocking engine alive
PACKAGE_USAGE_STATS	read per-app data figures (you grant this by hand)
POST_NOTIFICATIONS	the engine's own status notification
RECEIVE_BOOT_COMPLETED	restore blocking after a reboot

Blocking uses VpnService in package-list mode — no packet forwarding, no
tunnel, nothing leaves the device. There is no analytics SDK, no crash
reporter, and no account.

Changes in 0.7

• Dropped QUERY_ALL_PACKAGES in favour of a scoped <queries> declaration.
• Enforcement windows are clamped to boot time, so saved-data estimates no
  longer count time before the device started.
• One notification channel instead of two; the old one is deleted on upgrade.
• Filter-aware headline, searchable app list with an empty state, three-state
  engine banner, relative magnitude bars, app version shown in Settings.
• Onboarding scrolls, so the grant button stays reachable at large font sizes.

Verifying this APK

sha256sum -c SHA256SUMS.txt

Signed by CN=Anubis Productions, OU=DataGate, O=Anubis Productions, C=EG,
SHA-256 fingerprint:

bd:9e:80:07:d5:42:cb:e1:c7:78:34:fa:c1:4f:27:08:73:49:9f:39:38:55:47:66:8c:89:6c:9c:ae:16:2c:02

Note this APK is signed with the upload key, so its signature differs from the
Play build, which Google re-signs. Install one or the other, not both.