
Build working apps, websites, and AI agents by describing them
Build working apps, websites, and AI agents by describing them
Bitrig records 34,127 monthly visits with +2.4% month-over-month growth and Freemium pricing. Prolific records 18,697,671 monthly visits with -1.8% growth and Paid pricing.

Build and ship native Swift apps from a single prompt
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | bitrig.com | prolific.com |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 34.13K (34,127) | 18.7M (18,697,671) |
| MoM Traffic Delta | +806 (+2.4%) | -352.04K (-1.8%) |
| Primary Market & Share | 🇺🇸 United States (40.9%) | 🇺🇸 United States (48.8%) |
| Direct Visits / mo | 8.07K | 12.98M |
| User Rating | 4.5 | 4.6 |
| Supported Platforms | Website | Website |

Build and ship native Swift apps from a single prompt
Describe an app in plain language and get real Swift code inside a complete Xcode project built with the full toolchain and current SDKs.
Runs agents powered by Claude Code and Codex with the latest Anthropic and OpenAI models, and lets you bring your own subscription instead of paying per-token.
The generated app runs automatically inside a 3D device frame you can grab and rotate, so you can evaluate it on realistic hardware.
Supports widgets, Live Activities, Controls, Shortcuts, Siri, Spotlight, StoreKit in-app purchases, CloudKit and Supabase backends, push notifications and GitHub.
High-quality human data for AI training, evaluation, and research
Filter participants by detailed demographic, professional, and behavioural criteria and reach narrow or representative samples rather than a generic crowd.
Collect human preference data for model fine-tuning, run safety evaluations and red-teaming, and use a feedback API to plug humans into automated pipelines.
Attention checks, honesty screening, and approval workflows help filter out careless or fraudulent responses before you analyse results.
Publish a study and begin collecting responses quickly, with tooling that supports screening, quotas, and longitudinal designs.

Build working apps, websites, and AI agents by describing them
Build working apps, websites, and AI agents by describing them
Describe an app in chat and ship it

Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Large consumer panel for market research surveys, but lacks Prolific's specialized focus on academic studies and AI tuning.
Prompt to working full-stack web app, published in seconds
Describe your app and a squad of AI agents builds it in native Swift and Kotlin
Describe your app and a squad of AI agents builds it in native Swift and Kotlin

SpecialistThe environments frontier AI trains on, and the agents that do the recurring work
SpecialistThe environments frontier AI trains on, and the agents that do the recurring work

Enterprise-grade data annotation and AI alignment workforce, but less self-serve for academic study recruitment and casual surveys.

Ship on-brand product experiences with your team and AI agents
Ship on-brand product experiences with your team and AI agents

Build and ship native mobile and web apps by chatting with AI
Build and ship native mobile and web apps by chatting with AI

SpecialistAI data infrastructure for building production-grade models
SpecialistAI data infrastructure for building production-grade models

SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.
SpecialistSpecializes in video-based consumer interviews and AI qualitative analysis, but less focused on quantitative academic survey panels.

SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.
SpecialistSources verified B2B professionals and healthcare experts for specialized research, but lacks broad general-population academic panels.