Cheap Calls

Where and how you can save some bucks on calls and messages?

:warn: Though this category is titled „Cheap Calls“, and the apps are intended to save you some bucks – be aware you often pay by other means. This category turns up third place for „average permissions requested per app“ (more than 25), even before the so-called anti-virus apps, only topped by the remote device management apps and Caller-ID apps requesting 1 permission more per app on average.

Save on Landline

2026-04-24

Tariffic (3.8@659) 8 $Contains no trackers known to us \o/$ LastUpdate: 2024-07-11
toolani - International Calls (3.1@5,783) Ǥ 22 5
Foocall: call & sms abroad (2.6@3,810) Ǥ 22 4 LastUpdate: 2023-12-13

Save via VoIP

2026-04-28

Some of these apps also offer short-message services.

ooVoo Video Calls, Messaging & Stories (4.9@100) Ǥ 16 16 LastUpdate: 2017-10-31 Wikipedia; clients available for Mac, Win, iOS as well
Talkray - Free Calls and Text (4.9@33) Ǥ 20 10 LastUpdate: 2019-01-18 incl. SMS; Phone & Tablet optimized
satellite (4.7@17,889) Ǥ 18 4 Vorstellung 5/2019
Libon: Calls and Recharge (4.5@226,386) Ǥ 26 5 Wikipedia EN
Google Meet (4.2@11,832,227) Ǥ 42 $Contains no trackers known to us \o/$ Vorstellung 8/2016
Second Number for Call & Text (4.2@676,376) Ǥ 53 19 pay with your privacy (beware the tracksers!)
MobileVOIP international calls (4.2@109,477) Ǥ 19 4
Rakuten Viber Messenger (4.1@16,769,761) Ǥ 68 21 Security Check 3/2017 ; Ausführlicher Test 4/2017 mit Privacy-Check ; Wikipedia DE | EN incl. SMS; Privacy- & Datenschutz? Totale Fehlanzeige!
Threema. The Secure Messenger (4.1@75,196; ~EUR 6.50) Ǥ 26 $Contains no trackers known to us \o/$ / Threema Work. For Companies (3.5@2,102) Ǥ 39 $Contains no trackers known to us \o/$ / Threema Libre (0@0) 39 $Contains no trackers known to us \o/$ Github; Video Review 3/2019 (DE); Video Backup & Restore (3/2019); Video Threema Webchat Howto 2/2017 (DE); Threema Video Tutorials; Vorstellung 8/2018 | 11/2018-1/2021; Wikipedia DE|EN; Audit 11/2015 | 3/2019; (Datenschutz-) Testbericht 2/2020 ; FAQ; Libre (FOSS) version available via Threema’s own F-Droid repo; messenger with end-to-end encryption / Github
TiKL Touch Talk Walkie Talkie (3.9@162,976) 12 7 LastUpdate: 2018-05-22 incl. SMS & Chat
Tango: Live Stream, Video Chat (3.8@4,814,673) Ǥ 34 3 Wikipedia; incl. SMS
Cellbry (3.8@309) Ǥ 26 4 LastUpdate: 2020-04-22
Jitsi Meet (3.5@52,909) Ǥ 16 2 Github; Anleitung 3/2020; Video Kurzanleitung 3/2020; Vorstellung 4/2020
Nextcloud Talk (3.3@1,838) Ǥ 39 $Contains no trackers known to us \o/$ Github
LINE: Calls & Messages (3.2@13,883,833) Ǥ 57 5 Wikipedia DE | EN
Talkatone: Texting & Calling (2.9@194,527) Ǥ 32 17
KakaoTalk : Messenger (2.3@3,284,211) Ǥ 57 4 Wikipedia DE | EN
Wire - Secure Messenger (2.3@36,729) Ǥ 24 1 Github; Testberichte 4/2017 | 3/2020; Privacy-Warnung 7/2018; Vorstellung 8/2018 - 4/2020; free/gratis, encrypted communication: voice, video and group chats; cross platform: Android, iOS, Mac, Windows. Or in the web browser.
Pulse (0@0) 7 $Contains no trackers known to us \o/$ Redirect outgoing calls to Signal/Telegram/Threema

Open SIP clients

2026-05-07

Telesis SIP VoIP Softphone (5@230) Ǥ 25 $Contains no trackers known to us \o/$ LastUpdate: 2020-09-24
Voip By Antisip (+Video) (4.2@464) Ǥ 15 $Contains no trackers known to us \o/$ LastUpdate: 2023-05-19
Zoiper IAX SIP VOIP Softphone (4.1@76,528) Ǥ 43 1
baresip (4.1@38) 26 $Contains no trackers known to us \o/$ / baresip+ (5@6) 27 Github
MizuDroid SIP VOIP Softphone (4@4,994) Ǥ 28 $Contains no trackers known to us \o/$
Linphone (3.6@6,089) Ǥ 36 1 Wikipedia DE | EN; Anleitung für Sipgate; Clients also available for Linux, Mac, Windows, iOS, WP8
Simlar - secure calls (3.6@158) Ǥ 28 $Contains no trackers known to us \o/$ Github; encrypted calls, FOSS
Denwa (3.6@106) 15 $Contains no trackers known to us \o/$ LastUpdate: 2020-06-24
Jami (3.5@2,362) Ǥ 27 $Contains no trackers known to us \o/$ Wikipedia EN; FAQ; Vorstellung 12/2019 | 5/2020; Testbericht 3/2020; Review 1/2021; desktop clients for Linux, Mac, Windows
Sipnetic (3.4@1,989) Ǥ 24 $Contains no trackers known to us \o/$ Testbericht 2/2020; Anleitung für Sipgate
Lumicall (3.1@62) 24 $Contains no trackers known to us \o/$ LastUpdate: 2021-10-13 Github
Sipdroid (2.8@10,724) 28 $Contains no trackers known to us \o/$ Github; Wikipedia EN
ASTPP Dialer - VoIP Softphone (1.7@122) 18 2 LastUpdate: 2023-08-31

Roaming Control

2026-04-24

EU Roaming Data Watcher (3.6@38) 0 $Contains no trackers known to us \o/$ LastUpdate: 2020-05-31
Roaming Guard (2.6@151) 7 1 LastUpdate: 2022-03-31
Roaming Borders (0@0) 10 $Contains no trackers known to us \o/$ Github
Roaming Guard (0@0) 7 $Contains no trackers known to us \o/$ Codeberg

Various savings

2026-04-24

Serval Mesh (4.2@1,928) 30 $Contains no trackers known to us \o/$ LastUpdate: 2017-06-03 Github; Mesh network of phones (no central server)

Further Readings:

Category Provider Tools: Contract Management and more
Category Messenger & Conferences
The 7 Best Free Calling Apps (Unlimited Calls With Wi-Fi) (6/2021 - 8/2023)
The 5 Best Free Calling Apps for Making Free Phone Calls (4/2021 - 1/2023)
Mit dem Smartphone im EU-Ausland: Wann fallen Kosten an? (6/2017 - 7/2019)
Voice over IP – Telefonieren über das Internet (6/2016)
Telefonieren über das Internet: So bleibt Ihr weltweit preiswert erreichbar (1/2016 - 4/2017)
Die besten Skype-Alternativen für Android (11/2014 - 4/2020)

2026-05-10

IzzyOnDroid

Cheap Calls

Save on Landline

Save via VoIP

Open SIP clients

Roaming Control

Various savings