Various Contact and Phone Tools

Call Confirm

2026-09-08

Have your phone asking you for confirmation before calling out (to prevent accidental calls)

Call Confirmation (4.2@484) 2 1
Call Confirm (1.8@256) Ǥ 15 2 LastUpdate: 2020-05-22

Call Blocker

2026-09-08

Chose wisely. As e.g. Phandroid reveals, some of those apps are mainly after your data – and sell your phone number to even more spam callers.

Calls Blacklist - Call Blocker (4.7@848,155) Ǥ 16 3 Test 2/2017; can block calls & SMS
Mr. Number: Spam Call Blocker (4.6@200,967) Ǥ 26 3
Call Blocker (4.4@269,979) 7 5 Test 1/2017
Showcaller: Caller ID & Block (4.4@199,563) Ǥ 35 3
Truecaller: Phone Call Blocker (4.3@29,386,918) Ǥ 47 30 Wikipedia; privacy warning 2015 EN | DE | 2018/2018; hands off / Finger weg
Call & SMS Blocker - Phone app (4.2@330,205) Ǥ 30 3
Caller ID, Phone Dialer, Block (4.2@219,189) Ǥ 31 6
Sync.me - Spam Call Blocker (4@249,217) Ǥ 41 19 Privacy Warning (uploads your entire contact list to their servers)
Call Control. Call Blocker (4@110,755) Ǥ 34 6
Call Blocker - Blacklist (3.8@158,194) Ǥ 33 10
Whoscall: Caller ID & Block (3.5@806,457) Ǥ 39 22
Spam Call Blocker (0@0) 11 $Contains no trackers known to us \o/$ Github; focused on Spain
Call Blocker (0@0) 11 $Contains no trackers known to us \o/$ GitLab
Saracroche : bloqueur d’appels (0@0) 7 $Contains no trackers known to us \o/$ Github
SpamBlocker Extended (Call/SMS/Notification) (0@0) 25 $Contains no trackers known to us \o/$ Github
Yet Another Call Blocker (0@0) 10 $Contains no trackers known to us \o/$ LastUpdate: 2021-11-18 GitLab
Silence (0@0) 11 $Contains no trackers known to us \o/$ Github
SpamBlocker (Call & SMS) (0@0) 22 $Contains no trackers known to us \o/$ Github
Carrion (0@0) 3 $Contains no trackers known to us \o/$ LastUpdate: 2024-12-09 GitLab; block spoofed calls

Call Recorder

2026-09-08

Showcaller: Caller ID & Block (4.4@199,563) Ǥ 35 3
Automatic Call Recorder (4.3@71) Ǥ 23 2
Call Recorder - Cube ACR (4.2@908,031) Ǥ 27 7 phone calls and VoIP conversations
Call Recorder - callX (4.2@440,476) Ǥ 28 8 LastUpdate: 2022-11-03 / Automatic Call Recorder Pro (4.2@429,725) Ǥ 28 8 LastUpdate: 2022-11-02
Call Recorder (3.9@437,650) 15 4
Total Recall (3.6@46,285) Ǥ 19 3 LastUpdate: 2020-10-12
Call Recorder (3.5@275,942) Ǥ 15 26
Note Call Recorder, Call Recording (3.5@11,314) Ǥ 18 3 LastUpdate: 2021-02-20
Call Recorder Automatic (3.2@503,634) Ǥ 22 9 LastUpdate: 2024-11-20
BCR-GUI (0@0) 7 $Contains no trackers known to us \o/$ Github; companion app for BCR
ShizuCallRecorder (0@0) 12 $Contains no trackers known to us \o/$ Github
Call Recording (0@0) enable call recording for Google Dialer
XCallRecordingSettings (0@0) 2 $Contains no trackers known to us \o/$ LastUpdate: 2023-01-08 Github; CM 11-13, LOS 14-18

Call anonymously

2026-09-08

If you don't want to use an app for that, simply prefix the called number with the disabling code (usually *31#, but might vary with country and provider).

Call prefixer

2026-08-29

Contacts Prefix Fixer (5@489) Ǥ 8 2 LastUpdate: 2024-11-19
Edit Prefix Number (5@142) 4 4 LastUpdate: 2017-05-08
IDD Prefix Dialer (IDD/ISD) (4.1@21) 6 2
Business Prefix (3.9@2,489) Ǥ 11 6

Call Notes

2026-09-09

Call Notes Pro (4.3@2,214) Ǥ 13 1 LastUpdate: 2022-03-11
Notes - Notepad and to do list (4.1@42,585) Ǥ 26 13
Call Writer (4.1@1,147) 14 3 LastUpdate: 2018-03-10
Call Reminder (3.6@136) Ǥ 18 15 LastUpdate: 2021-06-23
Productive.ai Call Assistant (3.5@6) Ǥ 23 2 record, transcribe and organize your phone calls
Free CallerID with Notebook (3.3@1,438) Ǥ 16 11 LastUpdate: 2021-06-23
Call Reminder (3.3@133) Ǥ 22 7

Fake Caller

2026-09-04

Need some rescue from a boring meeting, horrible date, or to end your visit at great-aunt Marble? An incoming, ultra-urgent call might help you out!

Fake Call (4@13) 12 6 LastUpdate: 2018-08-08
Fake Me A Call (3.9@7,045) 11 1

Incoming Call Notifications

2026-09-12

Speak Who is Calling (4.4@54,336) Ǥ 11 1
Caller Name Announcer (4@28,088) Ǥ 15 8
Schlikk Calls (0@0) 3 $Contains no trackers known to us \o/$ LastUpdate: 2021-05-29 GitLab; increase volume (optionally for selected contacts) when the phone rings

Call Logs

2026-09-03

Advanced Contacts Manager (3.7@1,242) Ǥ 12 11

Various caller tools

2026-09-08

Ril Control (4.4@16) 0 $Contains no trackers known to us \o/$ LastUpdate: 2018-09-11 GitLab; stop or start the ril-daemon (requires root)
Rogervoice Phone Subtitles (4.1@2,375) Ǥ 25 5 transcribe your calls
Raise To Answer (3.9@887) 6 $Contains no trackers known to us \o/$ LastUpdate: 2024-05-23 Github; simply hold your phone to your ear to answer an incoming call
Auto Redial -Auto Call Dialer (2.8@12,756) Ǥ 20 2 / Auto Redial Pro - Ad Free (3.6@135; ~EUR 2.50) 12 3 Intro 11/2017
SOS Ring (0@0) 19 $Contains no trackers known to us \o/$ Github; Force ringtone for VIP contacts even in Silent/DND mode
Call Limiter (0@0) 13 $Contains no trackers known to us \o/$ Github; limit call length (automatically hang up when time is up)
Call Forwarding Status Widget (0@0) 8 $Contains no trackers known to us \o/$ Github
Signet (0@0) 6 $Contains no trackers known to us \o/$ Github; protect against deepfake impersonation
Vibe (0@0) 2 $Contains no trackers known to us \o/$ Github; vibrate when your call is answered
Coma Phone (0@0) 4 $Contains no trackers known to us \o/$ LastUpdate: 2021-03-19 Github; auto-answer calls in speaker-mode (even when in coma)

Further Readings:

The 5 Best Truecaller Alternatives for Caller ID and Spam Blocking (8/2021)
Best Android Call Blocker Apps to Block Unwanted Calls (10/2020 - 12/2022)
3 Ways to Block Your Number and Hide Your Caller ID on iPhone or Android (5/2020 - 6/2023)
Here’s how spam blocking apps like Truecaller actually work (8/2017)
The Secret Life of SIM Cards (DEFCon 21, 2013), also see SimHacks.io

2026-09-12

IzzyOnDroid