Replika's companion design began as a bot to remember a friend

The design

Replika is a companion app published by Luka, Inc.; the company's own account of its history, current as retrieved on 16 September 2026, dates the product to 2017 and calls it, in the company's words, "the world's first consumer AI app." The current App Store listing confirms Luka, Inc. as the developer and shows the app has been available since 2017, though the listing describes the product as it exists today, with voice and video calls, avatar customization and image generation, rather than the original 2017 release. Replika's design did not begin as a general-purpose product. According to reporting on the company's earlier work, Kuyda and colleagues built a text-message bot trained on messages from her friend Roman Mazurenko after his death, and the conversational techniques from that project fed into what Luka later shipped as a general companion.

What the evidence says

What is independently documented is narrower than the company's framing. The App Store listing verifies distribution history and developer identity; it does not verify user counts. Replika's own site states that "two million people showed up in two months" after the 2017 launch and that the company now counts "over 40 million" users, both are the company's claims about itself, not figures confirmed by an outside auditor, and should be read as such. The reported memorial-bot origin comes from an outlet's reporting on Kuyda's earlier project, not from a Replika-published account located for this entry; it establishes the origin story credibly but as reported history rather than a company statement.

What it asks of people

Launching on iOS positioned Replika as an always-available conversational partner rather than a task tool. The product asked users for sustained, personal disclosure, the App Store listing describes discussing "personal matters like work and relationships", in exchange for a companion that "learns your preferences." That exchange has a cost: continued engagement is how the app personalizes itself, so its value depends on how much of a user's inner life they share with it.

Privacy and safeguards

The 2017 launch materials available today do not describe a distinct safety architecture for that release; current App Store metadata rates the app 18+ and categorizes it as Health & Fitness rather than Social Networking, a classification that shapes Apple's required disclosures but says nothing about clinical benefit. Neither the App Store listing nor Replika's history page details what data protections existed in 2017 specifically, a gap worth flagging for anyone treating this launch date as a baseline for the company's current privacy practice.

• Does a company's own founding narrative match what independent reporting documents about the same period?
• When an app's marketing describes lifetime user totals, is a date and source attached to the figure?
• Has a product's core design, memory, disclosure, dependency, changed enough since launch that the original release date still describes today's app?

Replika's 2017 debut is well documented as a fact of app-store history; the human story behind its design is documented mainly through outside reporting rather than the company's own current materials, a distinction worth keeping in view when the two are retold together.