# Principle alternatives

The highest-scoring alternative to Principle in Mockup Tools is **ProtoPie** (61/100), against Principle's 46/100. Ranked on independent signals, not user reviews. No vendor pays for placement.

| # | Alternative | Score | Confidence | Compare |
|--:|---|--:|---|---|
| 1 | [ProtoPie](https://www.vioscale.ai/software/protopie) | 61 | 55% (medium) | [Principle vs ProtoPie](https://www.vioscale.ai/compare/principle-vs-protopie) |
| 2 | [Lunacy](https://www.vioscale.ai/software/lunacy) | 46 | 25% (low) | [Principle vs Lunacy](https://www.vioscale.ai/compare/lunacy-vs-principle) |

Principle itself ranks #4 of 15 in Mockup Tools.

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*Source: Vioscale (https://www.vioscale.ai/alternatives/principle). Generated 2026-09-01T17:19:27.194Z.*