Hello.app

hello.app

Company type	Private
Industry	Cloud storage; Web3; Blockchain
Founded	2022
Founders	Álvaro Pintado; Alexander Baikalov
Headquarters	Barcelona, Spain
Area served	Worldwide
Key people	Álvaro Pintado (CEO)
Products	Decentralized storage application
Number of employees	12 (2024)
Website	hello.app

hello.app is a decentralized mobile cloud storage platform based in Barcelona. Founded in 2022 by Álvaro Pintado and Alexander Baikalov at age 17, it was among the first to offer distributed storage on mobile devices, allowing users to monetize unused space via blockchain.^[1]

Conceived in 2021 when Pintado, 17, built the beta, hello.app launched publicly in January 2022. It gained 100,000 users across 200+ countries within three months and neared 200,000 active users by mid-2024.^[2] In December 2023, El Confidencial reported an initial €300,000 raise and Pintado’s goal to rival Google and Amazon.^[3] In September 2024, hello.app closed an €800,000 Series B at a €16 million valuation.^[4]

hello.app uses a sharing-economy model: users rent spare device storage and earn cryptocurrency. Pintado detailed how blockchain ensures data integrity in an Interempresas interview.^[5]

• Pre-seed (2023): €170,000 from IESE, Esade, Castiventures and Bcombinator; plus a €130,000 participatory loan from ENISA.^[6][7]
• Seed (July 2024): €500,000 at a €16 million valuation.^[8]
• Crowdfunding (March 2024): Target €2 million, with €300,000 on Seedrs.^[9]
• Series B (September 2024): €800,000 at a €16 million valuation.^[10]

In October 2023, Pintado paid €107,000 for the domain www.hello.app, one of Spain’s largest domain purchases, before launching a €2 million funding round.^[11]

In April 2025, an investor sued Pintado in Barcelona for alleged fraud, citing opaque fund usage and unmet valuation promises.^[12]

• Official website