The app loads all the SMS messages in one place, because of this the initialization, the loading of the app can take a longer time, but after this, the app will work normally.
The app uses the default SMS folder, so messages can be viewed or deleted from the default SMS app and from the Poing app too.
For sending email and free SMS (via email or web) the sender needs to have an active internet connection (WiFi or Mobile), but the recipient does NOT need to have and active internet connection or the Poing app installed, because all messages are transformed in SMS messages. The only exception is with email messages, which are received in the recipient's email account either on PC or on mobile phone.
For the free SMS (via email or web), you have to allow less secure apps to access your account (don't worry, this is safe, see the last screen capture), from the https://www.google.com/settings/security/lesssecureapps link or from the Menu (the three dots or the Menu button) at the Less secure apps section. If you don't agree with this, it can be changed back easily. For this action to work, you have to be logged in or you have to log in Gmail in the default browser from your mobile device.
For sending email and free SMS (via email or web), you have to type in your Gmail email address and password in the Menu at the Login to Gmail section and the email has to be sent to an existing email address, like email@example.com for example.
For free SMS via email you need to write the email to SMS gateway address, from the http://mfitzp.io/list-of-email-to-sms-gateways link or from the Menu at the Email to SMS section, like firstname.lastname@example.org for example. You can find email to SMS gateway addresses on other sites too, you have to just search on Google.
For free SMS via web it's needed to be specified the country code, for India it's +91 or 0091, for example, without country code the SMS will be send as PAID SMS.
The coverage for the free SMS via web is the following:
Austria - Mobilkom (+43 or 0043)
Bulgaria - Mobiltel (+359 or 00359)
Croatia - Cronet (+385 or 00385)
Germany - E-Plus, Mannesman D2 (+49 or 0049)
Israel - Pelephone (+972 or 00972)
Lithuania - Omnitel (+370 or 00370)
Maldives - Dhiraagu (+960 or 00960)
Norway - NetCom, TeleNor (+47 or 0047)
Switzerland - Bluewin (+41 or 0041)
USA - Ameritech Cellular services, Cellular One, Cingular (+1 or 001)
Brazil - ATL express, Telemig Cellular (+55 or 0055)
Canada - Bell Mobility, Clearnet, Rogers AT&T Wireless, Telus (+1 or 001)
France - Itineris (+33 or 0033)
India - Essar Cell Phone, RPG Cellular (+91 or 0091)
Japan - NTT Docomo (+81 or 0081)
Malaysia - Celcom (+60 or 0060)
New Zealand - Messagetrack (+64 or 0064)
Spain - MoviStar (+34 or 0034)
Ukraine - Golden Telecom, UMC (+380 or 00380)
USA - Comcast Cellular Communications, Voicestream Wireless Corp. (+1 or 001)
Special thanks to http://www.webservicex.net, because the app uses its free SMS service for free SMS via web.
Please write the phone numbers/email addresses correctly, in order to be sure, that the messages will be sent.
This app does not store any of your information on third party servers, everything is stored on your phone only.
On newer devices than Android 4.4 KitKat, in order for the app to work, the Poing app has to be set the default SMS app, this can be changed back easily.
Also on newer devices than Android 6.0 Marshmallow, in order to make the app functional, you have to allow the app permissions to read SMS messages and contacts.
To access the hidden menu, long press on any chat bubble.
In the newest version it was added an initial setup, please configure it with real user data in order to gain full functionality of the app.