Appen records 665,840 monthly visits with +0.2% month-over-month growth and Contact for Pricing pricing. Sentiance records 5,997 monthly visits with -25.3% growth and Contact for Pricing pricing.
Human-validated training data and evaluation services for frontier AI models
On-device behavioral intelligence that turns phone sensor data into driving, mobility and lifestyle insights
| Dimension / Metric | | |
|---|---|---|
| Official Domain | appen.com | sentiance.com |
| Pricing Model | Contact for Pricing | Contact for Pricing |
| Monthly Visits | 665.84K (665,840) | 6K (5,997) |
| MoM Traffic Delta | +1.1K (+0.2%) | -2.03K (-25.3%) |
| Primary Market & Share | 🇺🇸 United States (22%) | 🇺🇸 United States (58.9%) |
| Direct Visits / mo | 238.31K | 2.35K |
| 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.
On-device behavioral intelligence that turns phone sensor data into driving, mobility and lifestyle insights
Machine learning models run locally on the smartphone, so insights are produced in real time without shipping raw sensor data to the cloud.
Detects vehicle crashes on the device and generates a report with time, location, severity indicators and surrounding driving events.
Produces trip-level and user-level scores plus segment profiles such as aggressive, anticipative or legal driver for risk pricing and claims workflows.
Identifies transport modes, trip purposes, eco scores, venue types, routines and physical activity levels to build complete user context.
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.
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.
Satellite imagery turned into decisions with AI analytics
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.
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.
SpecialistAgent observability, evaluation, and continuous improvement for production AI
SpecialistAgent observability, evaluation, and continuous improvement for production AI
The multimodal data layer for computer vision and physical AI teams
Offers pre-packaged AI training datasets and custom data collection services, but with a smaller global crowd than Appen.
Offers pre-packaged AI training datasets and custom data collection services, but with a smaller global crowd than Appen.
Free / Open-sourceProvides a flexible open-source annotation platform for self-hosting, but lacks Appen's managed enterprise human workforce services.
Free / Open-sourceProvides a flexible open-source annotation platform for self-hosting, but lacks Appen's managed enterprise human workforce services.
All-source maritime intelligence powered by Maritime AI™
Edge AI accelerators and vision processors for embedded intelligence
