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Antoine Neidecker

Co-founder, Train Fitness

Fitness tech

Antoine Neidecker co-founded Train Fitness, the Apple Watch app that detects strength exercises and counts reps from wrist motion, with Andrew Just in 2020. New Ventures BC listed Neidecker as CTO and co-founder in 2021. The company raised a US$2.5M seed led by Relay Ventures in 2023 and became Motra in December 2025; Motra's site names no leadership today.

Antoine hasn’t spoken on a TechTO, TechVancouver or TechWaterloo stage. This profile is here because Antoine co-founded Train Fitness, which appears in 1 talk in the archive.

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Quick answers

Did Antoine Neidecker co-found Train Fitness?

Yes. New Ventures BC's Top 26 Spotlight on Train Fitness (2021-07-21) lists "Antoine Neidecker, CTO, Co-Founder" beside "Andrew Just, CEO, Co-Founder", gives the founding date as "March, 2020" and Neidecker's education as "BSc, McGill University." MobileIDWorld (2021-11-16) writes that "Train Fitness co-founders Antoine Neidecker and Andrew Just saw an opportunity" in wrist-motion data. New Ventures BC (2022-02-23) reports that "TrainFitness co-founders Andrew Just and Antoine Neidecker announced a USD $540,000 pre-seed fundraising round led by Vienna's Calm/Storm Ventures."

What is Antoine Neidecker's role today?

Not verified. The last title on a fetched page is CTO and co-founder, from New Ventures BC on 2021-07-21. Motra's home, company and careers pages, read 2026-10-21, name no founders or executives. BetaKit's seed-round story (2023-06-21) names only "Train Fitness founder and CEO Andrew Just." No fetched page confirms whether Neidecker is still at Motra, so this profile carries the founder title only.

What happened to Train Fitness?

It is now Motra. Motra's company page, read 2026-10-21, carries the banner "Train Fitness has rebranded to Motra" and says the company is "Based in Toronto, Canada"; its rebrand announcement is marked "Launching December 2025." BetaKit (2023-06-21) reported that "Train Fitness has secured $2.5 million USD in seed funding led by Relay Ventures" with participation from BAM Ventures, Anorak Ventures, Boost VC, Alumni Ventures and Spacecadet Ventures. Sources disagree on the founding year: New Ventures BC says March 2020, while BetaKit and Motra's own page say 2021.

Has Antoine Neidecker spoken at TechTO?

No. Co-founder and CEO Andrew Just spoke at TechTO on 2023-09-14, in the talk "Your Apple Watch is Getting Smarter | The Future of Fitness with Andrew Just." Train Fitness now operates as Motra, so Just's directory profile lists his company as Motra.

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Maintained by TechTO · facts sourced and dated · last reviewed Oct 21, 2026