The research firm explained that nearly $132 million worth of Ether was spent on DApps, mostly on decentralized exchanges or DEXs and gambling apps.
The total value of DApp transactions in April was a 46 percent increase compared to the transactions in March and a 186 percent increase since the start of the year.
Despite the steady rise in transactions, the number of new DApps entering the blockchain space continued to decline since the start of 2019.
Diar pointed out that only 88 DApps were deployed in April, nearly reaching levels recorded in October 2017.
However, Ethereum continued to be the mostly used blockchain platform for DApps, contributing 60 percent to the number of platforms used to run decentralized apps, according to State of DApps, a non-profit curator of DApps.
Diar also saw a steady increase of download hits for the Truffle Framework, a programming tool used to build apps on Ethereum, with nearly 328,000 downloads recorded in the first quarter of 2019.
The data analysis provider added that developers will potentially continue to experience scalability issues with infrastructure.