WP Telegram Pro comes with more powerful features to give you more control:
General
Multiple Bots (as many as you want)
Processing of incoming bot updates
Easy to install and set up for the admin
Support for both long polling and webhook
Use only the module(s) you want/need
Fully customizable with actions and filters
Post to Telegram
Send posts automatically to Telegram when published or updated. You can send to a Telegram Channel, Group or private chat.
Multiple Instances (as many as you want).
Multiple Message Templates based upon category, tag, author, post type, custom taxonomy etc.
Inline keyboard for messages on Telegram.
Send posts instantly to Telegram from post list.
Filter posts by post, category, tag, author, custom post type, custom taxonomy etc.
Supports separate bot for each channel.
Supports Conditional logic for fields in Message Template
Multiple Channels/chats based upon category, tag, author, post type, custom taxonomy etc.
Built-in Reaction and URL buttons.
Custom (your own) Reaction and URL buttons.
Direct support for Advanced Custom Fields’ text fields.
Explicit support for WooCommerce product fields.
Supports sending featured image along with the text.
Messages can be delayed by a set duration.
You can send audios, videos, documents along with the messages.
Private Notifications
Get your email notifications on Telegram.
Supports Multiple email to Telegram chat combinations.
Supports WooCommerce order notifications, Contact Form 7 and other plugin notifications.
Supports BB Press forum notifications.
Integrated with WP Telegram Login to let users connect their Telegram.
Supports email attachments along with text.
Supports separate bot for notifications.
Instant Messages
Send instant messages to users, channels and groups.
You can send instant messages to Telegram without creating posts.
Supports both text and multi-media messages.
You can send messages to your users who use Telegram login
It supports the saved channels from Post to Telegram instances
Proxy
If your host blocks Telegram, you can use proxy to bypass the ban.
Supports proxy using Cloudflare worker, which supports file upload.
Supports proxy using Google Script.