The company, which sells anti-virus software and VPNs, posted revenues up 9% and 7.3% in actual rates to $218.3mln, adjusted to exclude exchange rate fluctuations, discontinued business and the sales of its managed workplace product.
Strong demand for VPNs and its privacy application Anti-Track software in the first half of the year showed billings growing 12.5% to US$454.6mln, with margins inching up to 55.4%.
Avast reiterated guidance from half-year results for the “upper end of high single digits” growth in the full year.
Chief executive Ondrej Vlcek said: “We continue to successfully execute our growth strategy, underpinned by our platform distribution model and our global installed base of more than 435m users."
The shares spiked 7% to 393.6p on Friday morning.