---
title: "Proto.io alternatives"
description: "Startups positioned as alternatives to Proto.io, ranked by upvotes. \"Alternative to\" is read from each site or set by the founder."
canonical: "https://www.exitfounder.io/alternatives/proto-io"
total: 1
generated_at: "2026-09-28T21:48:12.403Z"
---

# Proto.io alternatives

> Startups positioned as alternatives to Proto.io, ranked by upvotes. "Alternative to" is read from each site or set by the founder.

1 startups.

1. **[Appthetics](https://www.exitfounder.io/startup/appthetics)** — AI-powered mobile app design for founders creating beautiful apps fast  
  DR 7 (Domain Rating by Ahrefs) · ~24,239 visits/mo (estimated) · ▲ 0 · Design Tools · [.md](https://www.exitfounder.io/startup/appthetics.md)
---
_Source: ExitFounder (https://www.exitfounder.io). Metrics carry provenance: verified / estimated / reported / generated (from the website). Agent index: https://www.exitfounder.io/llms.txt · API: https://www.exitfounder.io/openapi.json · MCP: https://www.exitfounder.io/api/mcp_