Council3 experts · 1 synthesis
The council recommends

On: "Which app should I build with my designer friend?"

Top pick

Outfits app using AI

Building an AI outfit styling app offers the ideal balance of daily user retention, monetization via affiliate commerce, and rich UI/UX design challenges. While haircut previews have viral novelty, fashion apps provide ongoing utility rather than occasional usage. A flight tracker is heavily entrenched by well-funded competitors with costly data feeds.
Runner-up
Haircut previews with AI, which provides instant visual novelty and clear B2B2C distribution through local barbershops.
Wildcard
A collaborative virtual closet app where friends can style outfits for each other using AI try-on tools.
Best time
Start prototyping core UI flows immediately while testing lightweight diffusion models for outfit generation.
67%
aligned
Experts agree flight tracking is too commoditized, leaning toward AI outfits for stronger recurring retention.
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Claude Fable 5.1 and GPT-6 Astra didn't sit on this council.
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Where they agree

A flight tracker is crowded by established giants with high data costs and low design differentiation.
Both AI concepts effectively showcase a developer and designer partnership through rich visual experiences.
Fashion and haircut tools offer far clearer consumer monetization pathways than utility travel apps.

Where they diverge

OpenAI prefers haircut previews for distribution via salons, whereas Anthropic and Google favor outfits.
Google and Anthropic cite daily wardrobe retention, whereas OpenAI highlights haircut decision urgency.
Experts disagree on whether accurate hair rendering or fashion catalog integration is harder to build.
The 3 takes
GPT-5.6 Terra
Lens · B2B2C distribution
Build the haircut preview tool to leverage immediate visual appeal and direct salon distribution channels.
78% confident
Claude Sonnet 5
Lens · retention and monetization
Build the AI outfits app to capture frequent usage, viral reach, and lucrative affiliate revenue streams.
62% confident
Gemini 3.8 Flash
Lens · UX showcase and LTV
Build the AI outfits app for superior long-term retention and rich designer-led UI opportunities.
85% confident

The shortlist, scored

GPT-5.6 TerraClaude Sonnet 5Gemini 3.8 Flash
Outfits app using AI
Best for long-term retention, affiliate monetization, and deep UI/UX collaboration.
Flight tracker
Heavily commoditized by existing players with expensive API costs and low differentiation.
Haircut previews with AI
High viral novelty and clear salon distribution, though used less frequently than styling tools.
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Synthesized from 3 independent expert passes. Treat as informed input, not a guarantee. Your own judgment is the final vote.