1 March 2022

Mobile Streams plc

("MOS" or "the Company")

Monthly revenue now over US$150,000, and new mobile handset partnership

Mobile Streams plc is delighted to announce its monthly revenue now exceeds $150,000 per month across all channels. This is an increase of 87.5% in monthly revenue since the Company's update on 1 December 2021. Whilst the Company intends to report revenue figures on a quarterly basis going forward, it is pleased to note the growth in revenues at this stage.

Mark Epstein, CEO Mobile Streams plc, said:

"We are delighted to announce that our monthly revenue now exceeds $150,000 per month. It's great to be delivering this level of growth and just shows how far the whole Company has come. Our partnerships continue to go from strength to strength, increasing both our targetable audience across the world and the amount of content we have to show them. We intend to keep up the fast pace and keep delivering for customers, partners and shareholders."

This announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) No. 596/2014, as it forms part of UK Domestic Law by virtue of the European Union (Withdrawal) Act 2018. Upon the publication of this announcement, this inside information is now considered to be in the public domain.

About Streams Data

The Streams Data business provides data insight, intelligence and visualisation services and marketing optimisation tools. The enterprise level bespoke service achieved first revenues in June 2020, and the Streams SaaS ("Software as a Service") self-service platform generated initial customer revenues in October 2020. Enterprise clients include The Economist and Quanta Media Group.

For further information, please contact:

Mobile Streams plc

Nigel Burton, Adviser

+44 77 8523 4447

www.mobilestreams.com

Beaumont Cornish (Nominated Adviser)

James Biddle and Roland Cornish

+44 (0) 20 7628 3396

Peterhouse Capital Limited (Broker)

Lucy Williams and Duncan Vasey

+44 (0) 20 7469 0930