Disclaimer: This app is not affiliated with nor endorsed by WhatsApp Inc.
Previous name: "Open in WhatsApp (click to chat) [small, no ads]", changed to comply with WhatsApp and Google guidelines.

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I'm aware some users are using the app for business purposes. I'm glad my app is helping you being more productive, but please if you are using the app for commercial purposes consider supporting it. I want this little personal project to keep being a free without ads nor purchases app, and the progress and updates are based on the reception and support from you. There is a donation version that you can buy to help the development: play.google.com/store/apps/details?id=com.trianguloy.openInWhatsapp.donation

[New: There is now a web version, compatible with WhatsApp Web: trianguloy.github.io/OpenInWhatsapp_Web/ ]

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Did you know you can open a chat in WhatsApp with any number without saving first into contacts by opening in your browser the link 'wa.me/123456789' (using the prefix+number desired)?
Source: faq.whatsapp.com/en/android/26000030/

Originally that link was longer and more difficult to remember, so I made this tiny app to help in the process.

Since then I have added multiple functionalities (enter message, share link, list of country codes, create shortcut, save recent and pinned, open recent calls via add-on, and a few more) but always with these three principles:
1) Make the smaller app possible. This means no extra unrelated content, no extra libraries and no useless things. Currently its size is around 100KB=0.1MB. Less than a standard picture!
2) Use as few permissions as possible. Only the create_shortcut permission is used, nothing else! (no calls, no storage, no internet).
3) No ads. I hate ads. I will never add ads, adware, spyware, user tracking or other nasty stuff.

If you want a small tool to help you open numbers in WhatsApp, try it. If you prefer an app that sends your data to Google, there are clones out there.

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Translation:
Thanks to Timofey Lisunov, Matheus Damacs, Yusuf Emen, Benjamin Yılmaz Çetiner, Richard Anderson (Hirai RCD), Aditya, Armand Secco, Yoni Cohen jonbir3, MageshBabu K (mage1k99), artmann (Dwi Legowo), Steven Felix, mezysinc, Thenur Mahesh Kannan, Faisal Aloufi, RaviDhoriya, Nathanaël Gagnepain for the translations!

Permissions used:
SHORTCUT: To create shortcuts in the launcher.
-Nothing else- (they aren't necessary)

Apk size:
~100 KB (0,1MB)

From version Click to chat 4.1.3:

V 4.1.3
- New French update. Many thanks to Nathanaël Gagnepain!
- Translation updates
- Fixed some very rare crashes

V 4.1.2
- Translation updates

V 4.1.1
- Fix Signal/Telegram toggles not working in some locales

Do you like the update? Suggestions? You can say so in the comments or in the blog! triangularapps.blogspot.com/

Variant
Arch
Version
DPI
(nodpi) (Android 4.1+)
Latest: 4.0 on November 14, 2021
All versions
Click to chat 4.1.3
August 1, 2022

Version:4.1.3

Uploaded:August 1, 2022 at 3:55PM UTC

File size:0.25 MB

Downloads:9

Click to chat 4.1.2
May 8, 2022

Version:4.1.2

Uploaded:May 8, 2022 at 4:18PM UTC

File size:0.24 MB

Downloads:59

Click to chat 4.1.1
April 19, 2022

Version:4.1.1

Uploaded:April 19, 2022 at 8:18AM UTC

File size:0.24 MB

Downloads:30

Click to chat 4.1
April 14, 2022

Version:4.1

Uploaded:April 14, 2022 at 3:08PM UTC

File size:0.24 MB

Downloads:12

Click to chat 4.0.1
December 8, 2021

Version:4.0.1

Uploaded:December 8, 2021 at 12:34AM UTC

File size:0.23 MB

Downloads:114

Click to chat 4.0
November 14, 2021

Version:4.0

Uploaded:November 14, 2021 at 3:01PM UTC

File size:0.21 MB

Downloads:32

Click to chat 3.3
August 15, 2021

Version:3.3

Uploaded:August 15, 2021 at 10:55AM UTC

File size:0.21 MB

Downloads:107

Click to chat 3.2
July 30, 2021

Version:3.2

Uploaded:July 30, 2021 at 9:50PM UTC

File size:0.19 MB

Downloads:40

Click to chat 3.1.3
July 25, 2021

Version:3.1.3

Uploaded:July 25, 2021 at 12:43AM UTC

File size:0.11 MB

Downloads:25

Click to chat 3.1.2
July 6, 2021

Version:3.1.2

Uploaded:July 6, 2021 at 10:19PM UTC

File size:0.19 MB

Downloads:28