There are many feature request.
Add a mobile number option to the registration form.
Admin Ability send mail and sms to users. Like for promotion, offer, update.
Global template system. Admin can add templte and ability to share with users. like admin device share.
Add manual payment method, (other payment method. if possible). Users can order their package through subscription page with manual payment method. In the manual payment user fillup up there peyment info. Account, Name, tnx id, user id.
You can set a from for the menual payment method info there admin will setup manual peyment method info.Add an option for mail notification, where the admin receives mail when a new user registers, purchases packages,s, etc.
Corporate account or user. A services for corparet. an super admin account with multiple sub account access. Like super admin, admin, manager, marketer etc. Super Admin assign permission for other account. Corporate account devices can share with other users and also ability to deny to use Super admin device.
Create a UID for user. a unique number for identify user.
Redesign web and app UI. Morden design. (Humbel request to you)
A FAQ or How to page. In the page admin can setup FAQ, add video (embed) etc.
Contact page, live chat. user can contact via contact page. In the page contact info with a mail sending from.
Multi admin account. as for this is a saas. super admin, admin, like this. this is for maintainc.
Country code.
this is i personally requested.
Admin can set county name with country code. user will access the country list on contact upload page. when user try upload number then all number will add country code autometrically. if the number come with country code.
I understand. for this you need to collect all country number info like number length.
Ability to import number from contact.
Reseller panel.

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Fattain Naime commented
I have add 2 new features.