# IC Product Designer at Trainwell

> What I’ve worked on at Trainwell, like Workout Feedback (+14% engagement) and our Peloton partnership, plus my Zeno iOS app and my time on Backstage’s founding team.

Web page: https://www.karthiksivacharan.me/works

Current full time: remote 1-on-1 personal training with your own trainer, in an app

ARR in $Ms · 1.9M+ workouts logged · 4.9 app store rating

### Voice Notes

We shipped voice notes in Trainwell’s chat, so clients and their trainers can send each other quick voice messages.

- Result: 38% adoption

### Peloton Partnership

We shipped a white-labelled app with Peloton from scratch. I led the design, including the branding.

- Result: +29% revenue
- Ongoing

### Workout Feedback

I designed a way for clients to tell their trainer how each workout felt, right from their iPhone or Apple Watch.

- Result: +14% engagement

Trainwell is backed by the investors of Perplexity, Strava, Luma and Zoom.

## Zeno: Steps for Screen Time

Current side project: wellness app that reduces screen time by locking apps until you walk

32% screen time reduction · HealthKit • ScreenTime API

Zeno tries a different approach to screen time. Instead of strict blocking or manual overrides, it uses your steps to decide how much time you get on distracting apps. So walking unlocks scrolling time, and once that runs out the apps lock again.

[Try Zeno](https://apps.apple.com/in/app/zeno-steps-for-screen-time/id6757132863)

## Founding Product Designer at Backstage

Past work: Helping creators connect with their fans and make money from it

Founding team · $2M seed · B2B2C

### Interactive Fan Challenges

Creators can launch personalised challenges to interact closely with their super fans and reward them for participating.

- Skills: Interaction Design, Customer Discovery
- Case study: [Interactive Fan Challenges](https://www.karthiksivacharan.me/backstage/creating-participating-in-a-challenge.md)

### Hypelink Missions

Creators can launch Hypelink missions that get their fans to share a post with their own networks, so it reaches a lot more people.

- Skills: User Research, Prototyping
- Case study: [Hypelink Missions](https://www.karthiksivacharan.me/backstage/creating-participating-in-a-hypelink.md)

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## Working on something and need a designer who can also build it?

[Let’s talk](mailto:karthiksivacharan@gmail.com) · [Book a call](https://cal.com/ksivacharan) · [X](https://x.com/k_sivacharan) · [LinkedIn](https://www.linkedin.com/in/karthik-sivacharan/) · [GitHub](https://github.com/Karthik-Sivacharan)