Cadryl: dataset studio

unicorn who dev

Contains adsIn-app purchases

About this app

Cadryl turns an image collection into a dataset on your Android phone. Import your images, annotate manually or review suggestions from a compatible model, then export your work.

YOUR ANNOTATION STUDIO
Create projects with your own classes. Work in batches with boxes, points and masks. Edit annotations and resume your progress when you reopen a project. An interactive tutorial guides your first steps and can be reopened from settings.

Ten configurable tasks cover points, detection, masks, captions, tags and classes, text-region links, visual questions, counting and quality. Available formats and models depend on the selected task.

YOUR IMAGES AND MODELS
Choose a local folder or a Hugging Face source. Manage models in a dedicated library and import compatible bundles. Manual annotation works without a model. The app does not include model weights or datasets.

OPTIONAL LOCAL TRAINING
Compatible models can learn from reviewed annotations. Training creates a separate version and keeps the original available. Capabilities depend on each model’s contract and supported operations. Cadryl does not promise universal model accuracy.

EXPORTS FOR YOUR WORKFLOW
Prepare a local archive and export JSONL, COCO, YOLO, WebDataset or vision-language data according to your annotations and selected format. Copy checks support batch completion. Publishing to Hugging Face remains an explicit action. A dataset export is not a complete project backup.

PROCESSING IN THE APP
Cadryl has no backend of its own. Projects and local inference stay on the device. Model downloads, Hugging Face exchanges, ads and Google Play purchases use their respective external services. The privacy policy explains these exchanges.

The Google Play edition includes ads. An optional monthly subscription removes them. Google Play shows the price and terms before you confirm a purchase. Studio features remain available without a subscription.

Android 9 or later and an ARM64 device required. Inference and training depend on the model and your device’s memory and performance. Imported models and images remain subject to their own usage rights.

An independent project by Unicorn Who Dev.

What’s new

Cadryl, the image annotation studio for Android. Import images, annotate with boxes, points and masks, then prepare local or Hugging Face exports. Compatible models, on-device inference and training. Manual full backup and operation recovery. Optional ad-free subscription at €2.99 per month including VAT in France.