AltIndex records 97,418 monthly visits with -12.6% month-over-month growth and Freemium, Free Trial pricing. Appen records 665,840 monthly visits with +0.2% growth and Contact for Pricing pricing.
Your portfolio's AI analyst, powered by alternative data
Human-validated training data and evaluation services for frontier AI models
| Dimension / Metric | | |
|---|---|---|
| Official Domain | altindex.com | appen.com |
| Pricing Model | Freemium, Free Trial | Contact for Pricing |
| Monthly Visits | 97.42K (97,418) | 665.84K (665,840) |
| MoM Traffic Delta | -13.99K (-12.6%) | +1.1K (+0.2%) |
| Primary Market & Share | 🇺🇸 United States (62.6%) | 🇺🇸 United States (22%) |
| Direct Visits / mo | 36.86K | 238.31K |
| User Rating | 4 | 4.4 |
| Supported Platforms | Website | Website |
Your portfolio's AI analyst, powered by alternative data
Scores stocks using web traffic, app downloads, job postings, social mentions and insider activity rather than price charts alone.
High-conviction buy and sell signals plus real-time notifications when a holding spikes in popularity, sentiment or insider trading.
Upload a brokerage screenshot and get a 0–100 score for every holding, blended into a single portfolio score.
Ask plain-English questions about your holdings and get answers grounded in live scores, fundamentals and alt-data signals.
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.
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.
Global macro data and AI research platform for smarter economic decisions
Global macro data and AI research platform for smarter economic decisions
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.
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.
AI investing copilot for stock research, screening and market signals
AI investing copilot for stock research, screening and market signals
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
AI-driven stock scores that rank every pickable stock by probability of beating the market
AI-driven stock scores that rank every pickable stock by probability of beating the market
AI-driven market analysis for faster, data-backed investing decisions
AI-driven market analysis for faster, data-backed investing decisions
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.
