About Evox
Built by one person
Evox is a solo project. One dev, one athlete, one product. No investors, no board, no growth hacking, just the training tool I wanted for myself, that turned out to matter to other people too.
Olivier Marechal
Founder · Solo dev · CrossFit and HYROX athlete · Former military
I started CrossFit a bit over two years ago and got hooked fast. Today my back squat is at 150 kg, my deadlift at 180 kg, my clean and jerk at 100 kg. I race HYROX too: 1h18 in Solo Open at Toulouse, with the rower as my best station and the farmers carry as my worst. Like a lot of people who get hooked, I wanted to progress further than group classes could take me.
That meant custom programming. A coach I trust sends me a program every few weeks, and I follow it alone in open gym between classes. That's where Evox came from: the programming was on Google Sheets, the timer in another app, the camera for lifts, notes for weights. Four apps fighting for attention during an EMOM is a bad deal.
Before dev, I spent years in the military. That probably shows in how Evox is built: no fluff, no vanity metrics, things work or they don't. I'd rather ship one useful feature than three that look cool in a screenshot.
The origin story
Why Evox exists
Short version: my coach was sending workouts on Google Sheets, I had four apps open at once mid-WOD, and none of them talked to each other. Timer here, camera there, notes elsewhere, PR log in a spreadsheet. During an EMOM, you don't have time for that.
What that changes in the app, compared with other training apps, is on the Why Evox page.
Principles
How Evox is built
Local-first, cloud optional
Your sessions, PRs and workouts live on your phone. Cloud sync is opt-in. Delete the app and the local copy goes with it; if you created an account, deleting it from the app removes the server copy too. We don't hold anything hostage.
Free tier is a first-class citizen
The core is free: timers, the WOD library, PR tracking, session history. Vox and its subscriptions exist for people who want coaching on top, not as a paywall on the basics.
No VC pressure
I'm bootstrapped. That means I don't have to optimize for metrics that don't help you. I ship when a feature is ready, not when a quarter closes.
Indie pace, serious quality
Solo dev means slower cadence than a team of 10. It also means every feature that ships was weighed by someone who trains with it. Trade-off I like.
Honest about the limits
Evox won't replace your coach. It won't make you a Games athlete. It's a tool that pays attention between your sessions, that's the promise.
Current state
What's live
Live
Evox v2
- → Vox, the coach: session prep, debriefs and programs toward a goal
- → Session import from a photo or text, multi-week programs with a calendar
- → Timers, PR tracking, session history
- → HYROX tools (simulation, PFT, splits)
- → iPhone, Apple Watch and Android in 6 languages, plus a connector for ChatGPT and Claude
Get in touch
How to reach me
FAQ
Questions people ask
Is Evox VC-backed?
No. Evox is bootstrapped. I build it on my own time, around freelance backend work. No investors, no board, no pressure to hit someone else's quarterly targets. The side effect: features only ship when they actually help athletes.
How does Evox make money?
Training is free: timers, the WOD library, PR tracking and session history, with no paywall on the core. Vox, the AI coach, runs on credits, with 50 offered at sign-up. Two optional subscriptions add monthly credits and remove ads: Vox Light to debrief every session, Evox PRO to get programmed.
Can I contribute or give feedback?
Yes: feedback is what shapes Evox. Email contact@getevox.fit or DM on Instagram. I read every message. If you spot a bug, a missing feature you'd pay for, or a copy that sounds off, tell me.
Who is Evox for?
CrossFit, HYROX and hybrid athletes, at any level. Beginners are welcome: the timers and programs like Hyrox Discovery work from the start, and Vox adapts its sessions to your level. If you follow a strength cycle, a calisthenics progression or any structured program in open gym, it works too.
Do you offer freelance work outside Evox?
Yes. I freelance as a senior backend dev: short audits and refactor missions, not long-term retainers. Evox is the product side of what I do; freelance pays the rent. Details on my Malt profile.
Where are you based?
France. Evox is built and supported from here. The app ships in English, French, German, Spanish, Italian and Portuguese; the site is being translated into the same languages.
Now go try it
The app is free to download and the timers work without an account. If something is off, you know where to find me.