When comparing Reach vs GroupMe, the Slant community recommends GroupMe for most people. In the question“What are the best messaging apps for iOS?” GroupMe is ranked 21st while Reach is ranked 29th. The most important reason people chose GroupMe is:
GroupMe has a built in function to read receipts.
Specs
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Pros
Pro Mass message multiple people at once
Ability to send a single message to multiple people without exposing their contact information to each other. Reach sends individual messages to the group rather than starts a group chat.
Pro Personalized and Individual conversations in "Group Mode"
When sending a message to a group of people, Reach starts a private conversation in your Messages, Mail or WhatsApp apps respectively for each recipient
Pro Reusable Recipient Groups
Improve workflow productivity by creating reusable recipient groups
Pro All platforms in one: iMessage, Text/SMS, E-mail, WhatsApp, and Google Voice
Reach does not require the recipient to have Reach installed on their device. Instead it uses the existing messaging apps on the device to send the message to the recipient.
Pro Message Templates Feature
Prepare message templates which can be reused. Message templates can have recipients name variable, for example the template "hey {first name}!" will be populated with the recipients first name when the message is sent out
Pro Free texting through Google Voice
Reach integrates with Google Voice and allows to send free text messages in the U.S.A and low rates across the globe
Pro Fully automated mass texting with free SMS
Using Google Voice integration, Reach is able to send mass texts in a fully automated mode (without the need to press "Send" button for each message)
Pro Reads receipts
GroupMe has a built in function to read receipts.
Pro Great web client
GroupMe has an excellent web client that can be used to send and receive messages and manage groups from the desktop.
Pro IFTTT Integration
Allows sending messages from web services via IFTTT.
Pro Integrated calendar
It's possible to add location and time with reminders directly in the GroupMe app.
Pro Makes it easy to silence 1 or all groups
GroupMe has settings that allow muting a single group or turn off all GroupMe notifications from within the app.
Pro Does not require everyone in the group to have a smartphone
GroupMe can set up a custom phone number which allows people without the App to send and receive messages. This makes it easy to add anyone to messaging.
Cons
Con Need to press "Send" button per each recipient
When sending a message to a group, the user must press "Send" button for each recipient. The only work around is to use Google Voice integration for fully automatic mass texting
Con Drains battery fast
GroupMe, in order to have a constant connection which allows for notifications drains the battery of a device quickly, which is not ideal for a messaging app that one needs on time notifications from.