FitMob
AcquiredSan Francisco, US · Founded 2013 · Delaware corporation · 20 known investors
Fitmob was a San Francisco fitness marketplace offering app-based group workouts and gym subscriptions, acquired by ClassPass in 2015.
Also known as fitmob · Fitmob, Inc. · RK Fitness, Inc.
Founders & leadership
FitMob was founded in 2013 by Rajil Kapoor, Paul Twohey, and hannah kim.
Board
Investors · 20
Also in the syndicate · 15
Reported raises · per SEC filings
Form D private placements$6.5M disclosed across 2 of 4 rounds · 2013–2015
▶$5.6KraisedFeb 2015 · 10 investors · OtherRule 506(b)
- Rajil KapoorExecutive Officer, Director
- Tim ChangDirector
- Offering amount
- $22.4K
- Amount sold
- $5.6K
- First sale
- Feb 2015
- Incorporated
- Corporation, Delaware, 2013
- Federal exemptions
- 06b
▶$6.5MraisedJan 2014 · 18 investors · OtherRule 506(b)
- Paul TwoheyExecutive Officer
- Tim ChangDirector
- Rajil KapoorExecutive Officer, Director
- Offering amount
- $6.5M
- Amount sold
- $6.5M
- First sale
- Sep 2013
- Incorporated
- Corporation, Delaware, 2013
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Fitmob operated a mobile app and website through which consumers found and booked local group workouts led by trainers, initially at outdoor and indoor locations in San Francisco such as Brannan Street Wharf, Dolores Park and the company's own 5th Street headquarters. Workouts spanned strength, cardio and yoga fusion formats, and trainers certified by the company designed their own class formats. Celebrity trainer Tony Horton was described as a co-creator of the company's concept.
The company subsequently broadened from trainer-led classes into a marketplace connecting members with third-party gyms and studios. Under this model, members paid a flat monthly fee for unlimited classes at partner studios plus unlimited access to partner gyms, reserving spots from the phone and showing the reservation at the door. By January 2015 the network covered 192 partner locations in the Bay Area and had expanded beyond California to Washington, Oregon, Pennsylvania and Texas, with reported class types ranging from CrossFit to yoga.
Fitmob, Inc., previously named RK Fitness, Inc. and headquartered at 371 5th Street, San Francisco, was acquired by ClassPass, Inc. in April 2015. The fitmob.com domain currently serves ClassPass, which markets a single app for booking fitness, wellness and beauty appointments at studios, gyms and salons.
Founding story
Fitmob was founded by Raj Kapoor, a Snapfish co-founder and CEO and former Mayfield venture capitalist, together with Paul Twohey, a co-founder of Ness Computing and a former Palantir engineer. The company launched publicly in January 2014 with San Francisco as its first market, positioning itself around redefining the gym for the digital age through local group workouts with high-quality trainers.
Business model
Fitmob ran a two-sided marketplace between consumers and fitness providers. Early on it sold drop-in workouts led by trainers it certified, with trainers designing their own class formats; it later signed gyms and studios as partners and sold consumers a flat monthly membership giving access to partner classes and gym time, with bookings and reservations handled in the app.
Initially transactional: drop-in workouts started at $15, with per-workout pricing falling with frequency of use — about $10 per workout for members attending twice a week and $5 per workout for those attending three or more times a week, and a free first week for new members. The company later moved to a $99 per month subscription providing unlimited partner classes and unlimited gym access.
Traction
By January 2015 the company reported adding more than 400 gym and studio partners across seven cities in the prior three months, 192 partner locations available to Bay Area users, and 5x revenue growth from November to December 2014 following the launch of its subscription and gym-partnership model.
Latest developments
Fitmob was acquired by ClassPass, Inc. on 23 April 2015, and the fitmob.com domain now presents ClassPass's fitness, wellness and beauty booking service.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Fitmob competed in the digitally mediated group-fitness and gym-access market, described in press coverage as an "Uber or Lyft for community fitness." It was acquired in 2015 by ClassPass, which operates a comparable subscription booking marketplace.
The company combined trainer-designed, community-oriented group workouts in outdoor and indoor neighborhood locations with volume-based pricing that lowered the cost per workout as attendance increased, and later bundled unlimited studio classes and gym access into a single flat monthly fee.
Technology
A consumer mobile application and website used to discover nearby indoor and outdoor workouts, reserve spots, pay by stored credit card and check in at partner gyms by showing the reservation on a phone.
Go-to-market
Fitmob launched market by market, starting in San Francisco with its own trainer-led outdoor and indoor workouts, then recruiting gyms and studios as supply partners in each new city. Consumer acquisition relied on a mobile app and website with a free first week for new members, and later on the flat monthly subscription; press coverage compared the on-demand booking experience to Uber and Lyft.
Consumers seeking group fitness classes and gym access in urban US markets, plus the trainers, gyms and studios that supplied classes and capacity to the marketplace.
Geography
Headquartered in San Francisco at 371 5th Street. Operations began in San Francisco and expanded across the Bay Area and into seven metropolitan markets — San Francisco Bay Area, San Jose, Austin, Dallas, Portland, Seattle and Philadelphia — with availability reported in California, Washington, Oregon, Pennsylvania and Texas. Management stated an intention to expand internationally.
History
The company was established in 2013 under the name RK Fitness, Inc. and launched publicly in January 2014 alongside a $9.75 million equity and debt round, initially offering about 30 workouts per week in San Francisco. During late 2014 it shifted toward partnering with gyms and studios and introduced a $99 monthly unlimited subscription, adding more than 400 partners across seven markets in three months. In January 2015 it raised an additional $5 million and continued expanding, and in April 2015 it was acquired by ClassPass, Inc.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 5
launches, deals, and filingsFitmob added more than 400 gym and training studio partners across the San Francisco Bay Area, San Jose, Austin, Dallas, Portland, Seattle and Philadelphia, supporting a $99 monthly unlimited subscription.
The round was catalyzed by an AngelList Syndicate led by Paige Craig that raised $750,000 from 92 individual investors, alongside institutional participation including Mayfield Fund.
$5M source ↗
Fitmob publicly launched in San Francisco announcing $9.75 million in equity and debt funding from Mayfield Fund, Silicon Valley Bank and angel investors.
$9.8M source ↗
Fitmob launched its mobile app and website offering roughly 30 trainer-led workouts per week in San Francisco, with drop-in pricing from $15 and lower per-workout rates for more frequent attendance.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structure▸Research sources · 8
primary sources listed
- FitMobfitmob.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does FitMob do?
- Fitmob was a San Francisco fitness marketplace offering app-based group workouts and gym subscriptions, acquired by ClassPass in 2015.
- Who founded FitMob?
- FitMob was founded by Rajil Kapoor, Paul Twohey, hannah kim in 2013.
- Who are FitMob's investors?
- FitMob's investors include Expansion Venture Capital, Hemisphere Ventures LLC, Hinge Capital, Moonshots Capital, Rocketship.vc.
- How much funding has FitMob raised?
- FitMob has disclosed $6.5M raised across 2 of its 4 known rounds.
- Where is FitMob headquartered?
- FitMob is headquartered in San Francisco, US.

