Technology · Article
Instagram: How a Photo-Sharing App Reshaped Global Social Media Culture
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In brief
Instagram began in October 2010 as a simple photo-sharing app and is now one of the most used social platforms worldwide, owned by Meta Platforms. Features it introduced or popularized — Stories, Reels, and algorithm-personalization tools — have been widely copied across the industry, while roughly half of US adults now report using the app, according to Pew Research Center.
From a check-in app to a photo-sharing giant
Instagram launched on October 6, 2010, for Apple's iOS, built by founders Kevin Systrom and Mike Krieger, according to Wikipedia's history of the service. The app grew out of an earlier project called Burbn, a location check-in service; the two founders narrowed its focus to photo-sharing once they noticed that feature was what users engaged with most.
Early growth was fast by the standards of the time: Instagram reportedly reached 1 million registered users within roughly two months of launch and 10 million within its first year, per the same source.
The Facebook (Meta) acquisition
On April 9, 2012, Facebook agreed to buy Instagram for about $1 billion in cash and stock. The deal closed on September 6, 2012, with Wikipedia citing a final structure of roughly $300 million in cash plus 23 million Facebook shares. At the time, Facebook said it would run Instagram as an independent product within the company — a structure that has continued under Meta Platforms, Facebook's parent company since 2021.
Instagram has been led by Adam Mosseri as head of the app since October 2018, according to Wikipedia.
Features that changed how people post
Several Instagram features have become reference points across the social media industry. Stories, time-limited photo and video posts that disappear after 24 hours, launched in August 2016. IGTV, a standalone long-form vertical video app, launched in June 2018 and was discontinued in March 2022. Reels, Instagram's short-form video format built to compete with TikTok, launched in August 2020 — all dates per Wikipedia's account of the platform's development.
More recently, Instagram's own newsroom announced a feature called 'Your Algorithm,' which lets users see and adjust the topics driving their Reels recommendations. According to Instagram's December 2025 announcement on about.instagram.com, the tool launched in the United States on Reels on December 10, 2025, with a heart-and-lines icon giving users access to an AI-generated list of their inferred interests, which they can add to or remove. Instagram said the system is unified, so changes made for Reels also affect recommendations in Feed and Explore. The company's announcement states the feature was planned to expand to the Explore tab by April 15, 2026, and across Feed, Reels and Explore globally in English by June 10, 2026.
| Event | Date | Source |
|---|---|---|
| App launches on iOS | October 6, 2010 | Wikipedia |
| Facebook agrees to acquisition (~$1bn) | April 9, 2012 | Wikipedia |
| Acquisition closes | September 6, 2012 | Wikipedia |
| Stories feature launches | August 2016 | Wikipedia |
| Platform reaches 1 billion monthly users | June 2018 | Wikipedia |
| Reels launches | August 2020 | Wikipedia |
| 'Your Algorithm' tool launches (Reels, US) | December 10, 2025 | about.instagram.com |
Who actually uses Instagram
According to a Pew Research Center survey conducted from February to June 2025, half of US adults say they use Instagram, up from 40% in 2021. Usage is uneven across age groups: about eight in ten adults aged 18 to 29 say they use the app, compared with only 19% of adults aged 65 and older, Pew found.
- Instagram started as a photo-sharing spinoff of a check-in app called Burbn.
- Facebook's 2012 acquisition kept Instagram operating as a separate product inside the company, a structure that continues under Meta.
- Features such as Stories and Reels were built partly in response to competitors — Snapchat and TikTok, respectively.
- Half of US adults report using Instagram, up from 40% in 2021, per Pew Research Center's 2025 survey.
- Instagram's 'Your Algorithm' tool, launched in December 2025, lets users directly edit the interest topics behind their recommendations.
Your Algorithm is one unified system — so when you tell us what topics you want to see more or less of, your recommendations update everywhere: across Feed, Reels, and Explore.
Questions
- When was Instagram founded and by whom?
- Instagram launched on October 6, 2010, created by Kevin Systrom and Mike Krieger, after they pivoted an earlier app called Burbn to focus on photo-sharing, according to Wikipedia.
- Who owns Instagram now?
- Instagram is owned by Meta Platforms, following Facebook's 2012 acquisition of the app for about $1 billion; Facebook became Meta Platforms in 2021. Adam Mosseri has headed Instagram since October 2018.
- How many people use Instagram?
- Wikipedia's history page cites Instagram reaching 1.8 billion monthly users as of 2024. Separately, Pew Research Center found that half of US adults report using the app as of its February–June 2025 survey.
- What is Instagram's 'Your Algorithm' feature?
- It is a tool, announced by Instagram in December 2025, that shows users the interest topics driving their Reels recommendations and lets them add or remove topics, with changes applying across Feed, Reels and Explore.
- What happened to IGTV?
- IGTV was Instagram's standalone long-form vertical video app, launched in June 2018 and discontinued in March 2022, according to Wikipedia.
Sources
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