Invite function is very important and Internet products essential in the promotion period a way, this way to promote a greater emphasis on sharing, invite potential users by allowing users to share old behavior continues to attract new users, thereby expanding the user base App products.
By bringing new users and old users, it is the essence of flow fission. Pull the new incentives, welfare exciting and interesting to attract, motivate the value of resonance are all common means of invited users, which is the fastest effective pull new incentives.
The new award is to determine pull App old users to invite new users, giving incentives to both sides, which is a common fission App play.
App with educational learning and thinking, for example, has a long-term learning and thinking in the App page "Invitation courteous" activity. Events mechanism is simple: Invite a friend after the friend registration, learning and thinking will be given to new and old users some concessions as a reward, such as free watch live lessons, discount cards, coupons and other incentives, and more and more invited too. This would stimulate the participation of older users, spontaneous search for new users to learn and think App, App product to accelerate the number of users growing rapidly. 
However, in the part of the traditional invitation App fission, there is a link users to compare disgust, and that is to fill in the phone number links, many products are often App will use to fill in the phone number of methods to verify the source of information, specifically identifying new users who the invitation came.
Generally the process is to invite App Share: Share invitation landing page - invite your friends to fill in phone number + SMS verification code in the page - and then download the same phone number registered App-- after the download is complete, then the background by new binding relationship with the user's mobile phone number of the inviter. The invitation process is long, and requires the user to manually enter the phone number twice and verification code, once in the H5 landing pages, and once to log in after downloading App, for the user to operate too cumbersome and likely to cause the user resentment.
Before so I do not have to consider whether to invite the user to enter the phone number in the landing page, but users by automatically record user information when inviting landing page to download App, such as the user download is complete, and when you first open the App, and then retrieved user information recorded by the user to bind it? I ask those of skill, see if I can achieve, but the answer can not be achieved are, for many reasons, such as the browser permissions are too few records too much user information.
Then I did some research after, found openinstall this tool.
I learned openinstall actually a channel tracking tool, you can set parameters in the page's url H5, the landing page once a user enters the user's information is recorded in this channel, wait until the user logs App, in the retrieval of records channel user information is written. 
Knowing a lot, I was thinking inviter user ID can not be used as a channel of arguments? To each invitee than as a separate channel, which is not on the idea before I can achieve it?
We invite App by openinstall of process optimization, minus the user to manually fill the mobile phone number and invitation code of procedure, invite the user flow more smoothly, which for us to improve the conversion rate of users to download and retention will be helpful.
For users, without having to fill in the phone number, an invitation code, reducing the user steps, the user experience better, greatly improving the user's conversion and retention rates;
for App products, invite users to share efficiency is greatly improved, App more easily formed invite fission effect;
for developers, do not need to do too much development and maintenance, access openinstall the SDK can automatically match the number of users work, save time and money and effort;
App invite mechanism is almost every product will do a feature, such as: class App electricity supplier's mission to fight bargain, information App class apprenticeship, games category App's invitation for a match, and so on, as long as we believe, like me use good openinstall this efficient tool, as can be easily achieved App invite fission subscriber growth.