Das inoffizielle Android-Handbuch
Nokia 2.4 smartphone with 6.5 inch HD+ display, portrait and night mode, battery with 2 days runtime, fingerprint sensor, robust design, Android 10 and Google Assistant button.
Samsung Galaxy A21
Samsung Galaxy M32 Android Smartphone without Contract, 6.4 Inch Infinity U Display, Powerful 5000 mAh Battery, 128 GB/6 GB RAM, Mobile Phone in Blue, German Version Exclusive to Amazon
Moto G10 Dual SIM Smartphone
Blackview A70 (E) Smartphone without Contract, Android 11 System, 6.517 Inch HD with 5380 mAh Battery, 3GB RAM + 32GB Memory Octa-Core, 13MP + 5MP Camera, Fingerprint Sensor, 4G Mobile Phone, Dual SIM, Black Colour![Samsung Galaxy M12 Android Smartphone without Contract, Quad Camera, 6.5 Inch Infinity-V Display, Strong 5000 mAh Battery, 64 GB/4 GB, Mobile Phone in Green (German Version) [Exclusive to Amazon]](/shared/images/asap/B091D6LN4V.jpg)
Samsung Galaxy M12 Android Smartphone without Contract, Quad Camera, 6.5 Inch Infinity-V Display, Strong 5000 mAh Battery, 64 GB/4 GB, Mobile Phone in Green (German Version) [Exclusive to Amazon]
Moto G30 Dual SIM Smartphone (6.5 inch Max Vision HD+ Display, 64 MP Quad Camera System, 5000 mAh Battery, Android 11), incl. Protective Cover + Car Adapter
Blackview A70 2021 Smartphone without Contract, Android 11 Mobile Phone, 6.517 Inch HD + Display, 3GB+32GB, 5380 mAh Battery, 13MP+5MP Camera, Dual SIM Smartphone 4G, Face ID, GPS, Black
Cheap Calls
Where and how you can save some bucks on calls and messages?
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 second place for „average permissions requested per app“ (more than 20), even before remote device management and the so-called anti-virus apps, only topped by the „personal assistants“ (Google Now / Siri competitors) requesting 30 permissions per app on average.
Save on Landline
2021-10-05
- Cheap International Calls - FooCall (4.3@3,743) Ǥ 20
6 
- toolani - Cheap international calls since 2008 (4@5,210) Ǥ 21 12
- Cheap Calls (4@1,896) Ǥ 13 1 LastUpdate: 2016-02-04
- Tariffic - cheap international phone calls (3.7@644) 8
Save via VoIP
2021-10-06
Some of these apps also offer short-message services.
- Talkray - Free Calls and Text (4.9@33) Ǥ 20 10 LastUpdate: 2019-01-18 incl. SMS; Phone & Tablet optimized
- Hangouts Dialer - Call Phones (4.7@19)
LastUpdate: 2017-07-20 requires Hangout - Threema. Secure and private Messenger (4.5@67,938; ~EUR 4.00) Ǥ 26 2 / Threema Work. Secure Enterprise Messaging (3.9@1,270) Ǥ 29 1 Github; Video Review 4/2016 (DE) | 3/2019 (DE); Video Backup & Restore (3/2019); Video Threema Webchat Howto 2/2017 (DE); Threema Video Tutorials; Test 4/2016; Vorstellung 8/2018 | 11/2018-1/2021; Wikipedia DE|EN; Audit 11/2015 | 3/2019; (Datenschutz-) Testbericht 2/2020
; FAQ; messenger with end-to-end encryption - Viber Messenger - Free Video Calls & Group Chats (4.4@15,311,284) Ǥ 51 13 Security Check 3/2017
; Ausführlicher Test 4/2017 mit Privacy-Check ; Wikipedia DE | EN incl. SMS; Privacy- & Datenschutz? Totale Fehlanzeige! - Google Duo (4.4@8,211,851) Ǥ 36 2 Vorstellung 8/2016
- ICQ New Messenger App: Video Calls & Chat Rooms (4.4@797,879) Ǥ 35 9
- Skype - free IM & video calls (4.3@11,404,792) Ǥ 43 3
- Tango – Live Streams & Live Video Chats: Go Live (4.3@3,947,777) Ǥ 39 12 Wikipedia; incl. SMS
- ooVoo Video Calls, Messaging & Stories (4.3@1,150,534) Ǥ 16 16 LastUpdate: 2017-10-31 Wikipedia; clients available for Mac, Win, iOS as well
- Libon - International calls �� (4.3@198,776) Ǥ 18 5 Wikipedia EN
- satellite – mobile calls worldwide (4.3@3,611) Ǥ 21 3 Vorstellung 5/2019
- Orbitcall (4.3@73) 21 LastUpdate: 2020-03-14
- LINE: Free Calls & Messages (4.1@13,167,971) Ǥ 43 6 Wikipedia DE | EN
- KakaoTalk: Free Calls & Text (4.1@3,033,994) Ǥ 47 4 Wikipedia DE | EN
- MobileVOIP Cheap international Calls (4@59,733) Ǥ 19 5
- TiKL Touch Talk Walkie Talkie (3.9@162,976) Ǥ 14 7 LastUpdate: 2018-05-22 incl. SMS & Chat
- Nextcloud Talk (3.9@1,032) Ǥ 32
Github - menetalk - Best International Calling App (3.9@107) Ǥ 11 4
- FriendCaller IM & Video Chat (3.9@18) Ǥ 20 3 LastUpdate: 2016-11-02 incl. SMS; also per browser
- VoipCheap Cheap travel calls (3.8@470) Ǥ 17 5
- Cellbry (3.8@309) Ǥ 26 4
- VOIP tablet & phone, call (3.7@1,376) Ǥ 22 LastUpdate: 2016-04-03
- VoipStunt - cheap voip (3.7@1,124) Ǥ 17 5
- Jitsi Meet (3.6@47,149) Ǥ 18 3 Github; Anleitung 3/2020; Video Kurzanleitung 3/2020; Vorstellung 4/2020
- Wire • Secure Messenger (3.5@34,268) Ǥ 16 1 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.
- Vaani - International Calling (3.4@225) Ǥ 23 4
Open SIP clients
2021-10-21
- Zoiper IAX SIP VOIP Softphone (4.4@68,335) Ǥ 35 4
- baresip (4.2@23) 18 / baresip+ (3.8@5) 19 Github
- Simlar - free and secure calls (4.1@152) Ǥ 17 Github; encrypted calls, FOSS
- Antonia SIP Softphone - VoIP Mobile Dialer (4.1@118) 24 LastUpdate: 2020-02-24
- Voip By Antisip (+Video) (4@455) Ǥ 15
- ASTPP Dialer - VoIP Softphone (4@122) Ǥ 28 2
- Sipco SoftPhone (4@62) Ǥ 26 1
- Jami (3.9@1,253) Ǥ 19 Wikipedia EN; FAQ; background 9/2015 (EN) | 9/2015 (DE); Vorstellung 12/2019 | 5/2020; Testbericht 3/2020; Review 1/2021; desktop clients for Linux, Mac, Windows
- Linphone (3.8@4,836) Ǥ 26 1 Wikipedia DE | EN; Anleitung für Sipgate; Clients also available for Linux, Mac, Windows, iOS, WP8
- MizuDroid SIP VOIP Softphone (3.8@3,520) Ǥ 28
- Sipnetic (3.8@1,056) Ǥ 20 Testbericht 2/2020; Anleitung für Sipgate
- Telesis SIP VoIP Softphone (3.8@229) Ǥ 25
- Sipdroid (3.5@10,943) 29 Github; Wikipedia EN
- Denwa (3.5@103) 15
- Lumicall (3.1@62) 24 Github
- SIP Caller (0@0) 1 LastUpdate: 2016-09-13 Github
Roaming Control
2021-10-05
- EU Roaming Data Watcher (3.7@28) 0
- Roaming Guard (3.6@96) Ǥ 9 2
- Roaming Control (0@0)
LastUpdate: 2017-10-13 enable roaming for only the networks/countries of your choice - Save on your roamingcosts (trial version) (0@0) 12
Various savings
2021-10-05
- Serval Mesh (4.2@1,928) 30 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)
- The 5 Best Free Calling Apps for Making Free Phone Calls (4/2021)
- Mit dem Smartphone im EU-Ausland: Wann fallen Kosten an? (6/2017 - 7/2019)
- Videotelefonie-Apps im Vergleich (8/2016)
- Voice over IP – Telefonieren über das Internet (6/2016 - 4/2017)
- Telefonieren über das Internet: So bleibt Ihr weltweit preiswert erreichbar (1/2016 - 4/2017)
- Die besten Skype-Alternativen für Android (11/2014 - 4/2020)
- Kostenlos telefonieren: Die besten Apps für gratis Anrufe (10/2014 - 4/2016)
2021-10-22