When comparing WeChat vs Reach, the Slant community recommends WeChat for most people. In the question“What are the best messaging apps for iOS?” WeChat is ranked 22nd while Reach is ranked 29th. The most important reason people chose WeChat is:
WeChat generates a QR code for each user that other can be scanned to add them as a friend.
Specs
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Pros
Pro Friends can be added by scanning a QR code
WeChat generates a QR code for each user that other can be scanned to add them as a friend.
Pro Can be used as a Walkie Talkie
WeChat has push-to-talk functionality that can be used both one-on-one and in groups.
Pro Large collection of animated stickers
Pro Easy to send voice messages
Users can record a voice message from within the app to then send it to a recipient, who can then play the message from within the app. It is all self contained.
Pro Enables meeting new people
WeChat has a feature that pairs random people for a conversation. It is activated by shaking the phone (requires location sharing to be enabled) and will present a list of people who are doing the same and how far away from you they are.
Another feature for meeting new people is the Friend Radar that will display people in your vicinity that can then be added to your contacts list.
Finally, there is the People Nearby feature which allows you to send and receive greetings from people in your vicinity.
Pro Moments social network is seamlessly incorporated
Pro Flexible creation of chat groups
You can create chat groups for up to 500 people.
Pro Filters for photos
WeChat includes a collections of filters that can be applied to photos to change how they look.
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)
Cons
Con Notifications get muted after inactivity
New message notifications stop getting pushed if the application isn't opened for some extended period of time (seems to be around a week or so)
Con WeChat complies with China's requirements to hand over data
Con Conversations and chat groups aren't ported to new devices
Messages are stored on each device, so shifting to a new device means losing all the previous conversations, as well as an inability to post in previous chat groups until someone else posts there and you're alerted of a new message.
Con User base outside of China is comparatively small
While WeChat has over 400 million users the majority of them are in China. Adoption in other markets has been slow.
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