The phrase "addition to the launch" is correct and usable in written English.
It can be used when referring to something that is being added or included alongside a launch event or initiative.
Example: "In addition to the launch, we will also be hosting a Q&A session for our customers."
Alternatives: "alongside the launch" or "together with the launch".
In addition to the launch of the N.F.L. season and all the talk about the Green Bay Packers, conversation about Mr. Obama's speech was competing with breaking news about a specific, credible but unconfirmed terror threat for Washington, D.C., and New York, and then the massive power outage in San Diego.
In addition to the launch of the $5 per month option, the company says that it's also now introducing new features for its existing, ad-supported option.
In addition to the launch, Playyoo will also expand their developer contests taking the total prize money available to $40,000.
In addition to the launch of its new Discovery Guide, Ooyala is hoping to help increase viewing on Android devices.
In addition to the launch of AOL Classifieds in the U.S., a site for Canada is also available beginning today.
In addition to the launch, the company also announced that it has raised a $700,000 seed round led by Israeli venture fund Inimiti and other angel investors.
In addition to the beta launch of the added tiers, Twitch said that subscription gifting is also in the works.
In addition to the product launch dynamics discussed above, overall product mix also impacted quarterly comparability.
In addition to the app launch, CoinMarketCap said redesigned its website and upgraded its API.
In addition to the product launch, Mirror used the opportunity to announce that it has secured $25 million in funding from Spark Capital, bringing its total to $38 million.
In addition to the iPad launch, Microsoft said it's bringing one of Minecraft: Education Edition's resource packs to the consumer version for Windows 10 and Xbox.
