Business

SideKit

Website
Founded 2025Origin source ↗Checked 2026-09-15

Overview

SideKit is a consumer app studio that makes Island, a different kind of screen time app.

Company description As recorded 2026-11-08

Founders & team

Previously Sidekit, SideKit, Approxima

Company history As recorded 2026-11-08

Ethan Pronev

Founder

Co-founder at Approxima, building the trust layer to help software development scale with AI. Previously worked on trading systems at Jane Street and Citadel Securities. Computer Science graduate from the University of Waterloo, class of 2025.

Founder profile As recorded 2026-09-15

Ashish Selvaraj

Founder

Co-founder at Approxima, building the trust layer to help software development scale with AI. Previously worked on delta live tables at Databricks, an infra testing engine at Microsoft and graduated with a double degree in Computer Science and Business from Waterloo in 2025.

Founder profile As recorded 2026-09-15
2team members reported
Source-reported As recorded 2026-09-15

Founded 2025 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthverified profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedToronto, ON, Canada
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The retained text does not establish product availability or customer use.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidencesourced peoplesourced founding year