# APPs

- [GroundTruth Tools](/apps/groundtruth-tools.md): Collaborative Data Annotation Tools.
- [Annotate pictures](/apps/groundtruth-tools/annotate-pictures.md): Collaborative Data Annotation Tools
- [Sextant](/apps/sextant.md): Quick Evaluation Tools for Data and Models
- [Create an Evaluation](/apps/sextant/create-a-new-evaluation.md)
- [Custom Metrics](/apps/sextant/metrics.md)
- [Start to Evaluate](/apps/sextant/start-to-evaluate.md)
- [View Results](/apps/sextant/view-evaluation-results.md)