Appen records 665,840 monthly visits with +0.2% month-over-month growth and Contact for Pricing pricing. Atech records 1,592 monthly visits with +2.1% growth and Paid pricing.
Human-validated training data and evaluation services for frontier AI models
Build custom electronics with AI — describe it, and it writes the firmware
| Dimension / Metric | | |
|---|---|---|
| Official Domain | appen.com | atech.dev |
| Pricing Model | Contact for Pricing | Paid |
| Monthly Visits | 665.84K (665,840) | 1.59K (1,592) |
| MoM Traffic Delta | +1.1K (+0.2%) | +33 (+2.1%) |
| Primary Market & Share | 🇺🇸 United States (22%) | 🇩🇪 Germany (100%) |
| Direct Visits / mo | 238.31K | 675 |
| User Rating | 4.4 | 4.2 |
| Supported Platforms | Website | Website |
Human-validated training data and evaluation services for frontier AI models
Chain-of-thought reasoning traces, SME-level RLHF, supervised fine-tuning demonstrations and adversarial red teaming for the most capable models.
Golden trajectories, RL environment design, failure-mode taxonomies and software-engineering-driven deep evaluation for autonomous agents.
Multilingual ASR and conversational speech data, expressive TTS annotation, vision-language model training data, video action labelling and voice-agent evaluation.
LiDAR point-cloud labeling, multi-camera sensor fusion, robot demonstration trajectories, world-model rollouts and embodied interaction logs.
Build custom electronics with AI — describe it, and it writes the firmware
Describe the device you want and the AI selects the right modules and explains the build step by step.
Atech writes working firmware for the ESP32 motherboard so the assembled device runs without manual coding.
Modules snap into a motherboard with no soldering; standard Arduino-compatible sensors and add-ons also work.
Inspect any kit or build in interactive 3D so you know what you are assembling before it ships.
SpecialistConnects teams directly with verified human participants for preference tuning and studies, but lacks managed end-to-end labeling pipelines.
SpecialistConnects teams directly with verified human participants for preference tuning and studies, but lacks managed end-to-end labeling pipelines.
Free / Open-sourceBuild working apps, websites, and AI agents by describing them
Free / Open-sourceBuild working apps, websites, and AI agents by describing them
Blends custom software with dedicated human expert teams to handle complex operations, but operates as a bespoke service.
Blends custom software with dedicated human expert teams to handle complex operations, but operates as a bespoke service.
Combines robust data labeling tools with automated workflows, but focuses more on software tooling than managed human workforces.
Combines robust data labeling tools with automated workflows, but focuses more on software tooling than managed human workforces.
Provides enterprise-grade AI training data and model evaluation at massive scale, but often with higher enterprise pricing.
Provides enterprise-grade AI training data and model evaluation at massive scale, but often with higher enterprise pricing.
Free / Open-sourceShip on-brand product experiences with your team and AI agents
Free / Open-sourceShip on-brand product experiences with your team and AI agents
Delivers advanced multimodal data curation and annotation infrastructure, but requires your own annotation workforce for labeling tasks.
Delivers advanced multimodal data curation and annotation infrastructure, but requires your own annotation workforce for labeling tasks.
Free / Open-sourceDesign-aware AI agent that turns Figma files, URLs, and prompts into live apps
Free / Open-sourceDesign-aware AI agent that turns Figma files, URLs, and prompts into live apps
SpecialistAgent observability, evaluation, and continuous improvement for production AI
SpecialistAgent observability, evaluation, and continuous improvement for production AI
SpecialistThe multimodal data layer for computer vision and physical AI teams
SpecialistThe multimodal data layer for computer vision and physical AI teams
Free / Open-sourceDescribe your idea in plain English and let AI build, test, and deploy your app
Free / Open-sourceDescribe your idea in plain English and let AI build, test, and deploy your app
Free / Open-sourceDescribe an app, get one you can publish
Free / Open-sourceDescribe an app, get one you can publish
