Trust and verification
Verified hashes, stronger trust profiles, and lower-risk releases rise faster in the shortlist.
Ranked decision page
Showing 85 results
Knock on Ports
Use this track when you want safer, fresher, or leaner substitutes for a specific Android app.
Showing 85 results
Privacy guardrails first
Fresh releases matter
How this track ranks apps
These pages are not alphabetical lists. Each track emphasizes a different decision priority.
Release freshness
More recent releases usually rank better because users need options that are still maintained.
Footprint and install size
Smaller packages score better when the track is sensitive to storage, bandwidth, or device overhead.
Ranked options
Ordered using trust, risk, footprint, freshness, and category fit signals.
#1
Simple Text Crypt
Simple Text Crypt is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 1.7 MB.
Simple Text Crypt for Android (Security) with version history and verified package details. Release snapshot: Target SDK 36 | Size: 1.7 MB | ABI arm64-v8a, armeabi-v7a, x86, x86_6...
Priority score: 76
Trust score: 90
Risk: Low risk
Dangerous permissions: 0
Size: 1.7 MB
1 versions tracked
#2
Password Monitor
Password Monitor is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 2.5 MB.
Password Monitor for Android (Security) with version history and verified package details. Release snapshot: Size: 2.5 MB | Latest version: 1.0.2 | Target SDK 35 | Min SDK 23 | De...
Priority score: 75
Trust score: 87
Risk: Low risk
Dangerous permissions: 0
Size: 2.5 MB
1 versions tracked
#3
Pushie
Pushie is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 2.5 MB.
Pushie is an Android app in Security with a clean, verified release timeline. Release snapshot: Target SDK 34 | Updated: 2000-06-16 | Category: Security | Package: com.chesire.pus...
Priority score: 75
Trust score: 87
Risk: Low risk
Dangerous permissions: 0
Size: 2.5 MB
1 versions tracked
#4
PrivacyBreacher
PrivacyBreacher is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 1.7 MB.
PrivacyBreacher is an Android app in Security with a clean, verified release timeline. Release snapshot: Size: 1.7 MB | Latest version: 1.1.1 | Target SDK 29 | Category: Security...
Priority score: 74
Trust score: 84
Risk: Low risk
Dangerous permissions: 0
Size: 1.7 MB
1 versions tracked
#5
QuickSE
QuickSE is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 2.5 MB.
A closer look at QuickSE: release details and update history in Security. Release snapshot: Target SDK 36 | ABI arm64-v8a, armeabi-v7a, x86, x86_64 | Developer: maazm7d | Category...
Priority score: 74
Trust score: 84
Risk: Low risk
Dangerous permissions: 1
Size: 2.5 MB
1 versions tracked
#6
Salasana
Salasana is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 2.8 MB.
A closer look at Salasana: release details and update history in Security. Release snapshot: Updated: 2004-08-23 | Package: net.xvello.salasana | Target SDK 32 | Size: 2.8 MB | La...
Priority score: 74
Trust score: 84
Risk: Low risk
Dangerous permissions: 0
Size: 2.8 MB
1 versions tracked
#7
Exodus
Exodus is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 6.9 MB.
Exodus helps you to know which trackers and permissions are embedded in apps installed on your device. Release snapshot: Min SDK 23 | Latest version: 3.3.2 | Category: Security |...
Priority score: 73
Trust score: 81
Risk: Low risk
Dangerous permissions: 1
Size: 6.9 MB
1 versions tracked
#8
Paranoid's Pal - Privacy Lock
Paranoid's Pal - Privacy Lock is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 5.0 MB.
These days, maintaining privacy on our devices has become increasingly challenging. Release snapshot: Updated: 2008-11-12 | Latest version: v1.1.9 | Target SDK 35 | Size: 5 MB | M...
Priority score: 73
Trust score: 90
Risk: Low risk
Dangerous permissions: 0
Size: 5.0 MB
Release freshness: 6325 days ago
1 versions tracked
#9
ADBungFu
ADBungFu is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 3.8 MB.
Explore ADBungFu in Security with trusted metadata and a tracked update history. Browse version history, inspe Release snapshot: Size: 3.8 MB | Latest version: 4.0-17 | Package: c...
Priority score: 72
Trust score: 78
Risk: Low risk
Dangerous permissions: 1
Size: 3.8 MB
1 versions tracked
#10
TorServices (alpha)
TorServices (alpha) is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 8.8 MB.
TorServices (alpha) for Android (Security) with version history and verified package details. Release snapshot: ABI arm64-v8a | Latest version: 0.3.0 | Size: 8.8 MB | Package: org...
Priority score: 72
Trust score: 78
Risk: Low risk
Dangerous permissions: 1
Size: 8.8 MB
1 versions tracked
#11
Duress
Duress is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 4.8 MB.
Explore Duress in Security with trusted metadata and a tracked update history. lucky.duress . 0.11. Category: Release snapshot: Category: Security | Target SDK 32 | Min SDK 23 | P...
Priority score: 71
Trust score: 84
Risk: Low risk
Dangerous permissions: 0
Size: 4.8 MB
Release freshness: 6168 days ago
1 versions tracked
#12
Wasted
Wasted is worth comparing against Knock on Ports when you want a similar category fit with a footprint around 5.2 MB.
You can use PanicKit, tile, shortcut or send a message with a secret code. Release snapshot: Developer: lucky | Category: Security | Target SDK 32 | Min SDK 23 | Latest version: 1...
Priority score: 71
Trust score: 84
Risk: Low risk
Dangerous permissions: 0
Size: 5.2 MB
Release freshness: 6232 days ago
1 versions tracked
Questions users ask before choosing
Short answers for the trade-offs behind each library track.
When should I use alternatives pages for Knock on Ports?
Use this track when you already know the app you want to replace and need practical substitutes quickly.
What decides the order on an alternatives page?
The ordering favors safer trust context, fresher releases, cleaner permission signals, and useful differentiation from the current pick.
What is the main trade-off in alternatives pages?
The goal is not to find the most popular app overall, but the most credible replacement for the specific app you started from.
Explore another decision track
Switch lenses without leaving the category or app research flow.
55 best-of pages
Best Of
Use this track when you want the strongest all-around shortlist for a category, not just a single app swap.
55 privacy pages
Privacy
Use this track when permission minimization, risk context, and verification clarity matter more than raw popularity.
55 lightweight pages
Lightweight
Use this track when you need smaller installs and lower overhead without dropping trust context entirely.