How the Adidas Running app turned solo runs into a global movement

From fitness tracker to community platform: the Runtastic acquisition

Adidas entered the fitness app market in August 2015 by acquiring Runtastic, the Austria-based running and fitness tracker, for approximately $240 million, about €220 million at the time (TechCrunch, Forbes, Aug. 2015). Runtastic's apps had already logged more than 140 million downloads and around 70 million registered users at the time of the deal, giving Adidas an established base to build a community on instead of starting from zero.

Runtastic itself was founded in Linz, Austria, in 2009 and had grown into a family of more than 20 fitness, health, and endurance apps, alongside its own wearables and fitness monitors. After the acquisition, it continued operating largely as its own entity within the Adidas Group, still headquartered in Linz, with additional offices in Vienna and San Francisco, for several years before the deeper integration that followed.

The acquisition was never just about owning a piece of software. It was about owning the moment where movement happens, the run itself, and everything a brand can learn and build from that moment. Four years later, in September 2019, Adidas retired the Runtastic name and relaunched the app as adidas Running (Android Police, Sept. 2019), aligning the product directly with the brand's broader mission around sport and movement.

More than a tracker: what keeps users coming back

Adidas Running tracks pace, distance, calories, and more than 90 sports and activities, but tracking numbers alone rarely keeps someone opening an app every day. What keeps users returning is the social layer wrapped around those numbers: streaks, live coaching, local run and walking clubs, and a feed where users share achievements and encouragement.

The app also offers voice-guided training plans for 5K, 10K, half-marathon, and marathon distances, adaptive coaching that adjusts as a runner's fitness changes, and syncing with Wear OS devices so activity and streaks carry across a smartwatch and phone (Google Play, 2026). None of that is unique by itself; most fitness trackers offer coaching and wearable sync today. What is different is that adidas Running wraps all of it inside the same social layer, so training progress becomes something to share rather than something to track alone.

Millennials and Gen Z users in particular have gravitated toward this hybrid of performance and connection. Then there's adiClub, Adidas' broader loyalty program, which syncs directly with the app so that logging activity earns points. Those points are redeemable by adiClub members for gear, early product access, and event invitations, giving them a tangible reason to keep opening the app that reinforces the habit the community features are built to create.

Community as a design principle, not a marketing layer

Adidas Running treats community as core product architecture rather than a bolt-on feature. The app's feed, local groups, walking and run clubs, and live coaching sessions sit inside the same experience as the activity tracker itself, not siloed into a separate "social" tab.

Local groups form around shared geography or shared goals, from a neighborhood 5K crew to a company-wide step challenge, and walking clubs sit alongside running clubs rather than being treated as a lesser activity. That inclusivity widens who the app feels built for: beginners and casual walkers included, not only competitive runners chasing a personal best.

This design choice matters because it removes friction between tracking a run and celebrating it with other users. A runner finishing a 5K doesn't have to leave the app to find encouragement, it's already there in the feed, the club chat, or the group challenge leaderboard. That proximity between action and interaction is what turns occasional use into a habit.

The data behind the movement

Adidas Running's growth follows a documented timeline stretching from a $240 million acquisition in 2015 to a 2026 rewards partnership with a rival fitness platform. The milestones below are each tied to a dated, sourced report.

Adidas Running's own Google Play listing states the app now serves over 170 million people tracking more than 90 sports and activities, while Apple's App Store listing for the same app cites a lower figure. Self-reported app statistics vary by platform and update on different schedules, so treat any single total-user number as a snapshot rather than a fixed fact.

Why community changes the retention math

Fitness apps built purely around tracking face a structural problem: once someone learns their pace and distance, the novelty of watching a number update wears off, and open rates fade. Layering community onto tracking changes that math, because the reason to open the app stops being only about personal data and starts being about other people.

This pattern shows up beyond adidas Running, too. Strava's 2025 Year in Sport report found that club-organized events grew 1.5x year over year, describing that growth as "the infrastructure for turning online communities into real-world gatherings," while its broader community exchanged 14 billion kudos over the course of the year (Strava, Dec. 2025). That is the same mechanic adidas Running runs on with its own clubs, streaks, and adiClub rewards: each one gives users an additional, non-tracking reason to return.

How adidas Running turned solo runs into a global community

Adidas Running's strategy rests on three deliberate moves: leaning into shared goals, letting users build an identity around their activity, and responding to user behavior instead of just dictating it. None of the three required inventing a new fitness mechanic. They required designing the existing ones around people, not only performance.

None of these pillars depends on Adidas being a sportswear giant. A running-shoe brand, a boutique gym, or a standalone fitness app could apply the same logic: give users a shared goal to chase, a space to claim an identity, and evidence that their feedback shapes what gets built next. What Adidas brought was the scale to execute all three at once, not a mechanic unavailable to smaller product teams.

What other product teams can learn from adidas Running

The clearest lesson from adidas Running is that community works best when it is inseparable from the core product, not an add-on chasing engagement metrics. Every mechanic, tracking, streaks, clubs, rewards, exists inside one connected experience instead of a fragmented set of features bolted on after launch.

Building that kind of connected experience is exactly the work that pulls product and engineering time away from a company's core roadmap. Adidas had the scale and a multi-year runway to build its own community layer in-house, first through the Runtastic acquisition, then through years of iterating on clubs, feeds, and rewards. Most product and engineering teams don't have that runway, and don't need to spend it that way.

That is the type of gap social.plus is built to close. Rather than spending years building a social layer the way Adidas did, teams can integrate social.plus's APIs, SDKs, and UIKit, including an activity feed that mirrors the always-on updates behind adidas Running's engagement, directly into an existing app. Infrastructure removes the technical build burden; it does not replace the strategy, content, and moderation work that made adidas Running's community feel worth showing up for. Adidas proved the model works, and social.plus gives other brands and apps the underlying infrastructure to build their own version of it.

That distinction matters for how a team plans the work. An in-app feed, club structure, or reward mechanic still needs a clear use case, a moderation plan, and a reason for users to return that goes beyond the initial novelty, the same groundwork Adidas put in over multiple product cycles. What infrastructure changes is the starting point: instead of specifying, building, and maintaining that layer from zero, a product team can spend its engineering time on the parts of the experience that are actually specific to its app and its users.

Frequently asked questions

How did Adidas build its running community?

Adidas built its running community by acquiring Runtastic in 2015, rebranding it as adidas Running in 2019, and combining core tracking tools with social features: run clubs, live coaching, a shareable feed, and adiClub rewards. The result treats community as part of the core product rather than an add-on.

What was adidas Running called before the rebrand?

Adidas Running was originally called Runtastic, an Austria-based fitness tracking app that Adidas acquired for approximately $240 million in August 2015 (TechCrunch, 2015). Adidas retired the Runtastic name in September 2019 and relaunched the app as adidas Running.

What is adiClub, and how does it connect to the app?

Adidas' adiClub is its broader loyalty program, and it syncs directly with adidas Running so that logging runs, walks, and other activities earns points. Those points are redeemable by adiClub members for gear, early product access, and event invitations, turning everyday activity tracking into tangible rewards.

Is adidas Running free to use?

Yes, adidas Running is free to download on iOS and Android, with core tracking, community, and coaching features available at no cost. Select training content and adiClub rewards can unlock additional perks for registered users.

How does adidas Running's community compare to Strava's?

Both apps combine activity tracking with social features, but adidas Running builds its community around brand-specific mechanics like adiClub rewards and adidas-branded challenges, while Strava's community centers on segments, kudos, and public clubs. As of July 2026, the two are directly connected: activity logged on Strava can now earn adiClub points under a new integration between the platforms (Strava Press, 2026).

What can other apps learn from how Adidas built its running community?

The main lesson is that Adidas treated community as core product architecture, feed, clubs, and rewards built into the same experience as the tracker, rather than a separate feature added after launch. Product and engineering teams outside of Adidas can apply the same principle without repeating its multi-year, in-house build by integrating existing community infrastructure, such as social.plus's APIs, SDKs, and UIKit, into their own apps.

Ready to build a connected experience like adidas Running?

Adidas spent close to a decade turning a fitness tracker into community infrastructure: an acquisition, a rebrand, and years of iterating on clubs, feeds, and rewards. Brands and apps that want that same always-on social layer, without Adidas' multi-year build timeline, can start with social.plus infrastructure instead. Talk to our team about what an in-app community could look like inside your product.