PDF Image Converter
PDF ↔ Images, locally on device.
Independent Android studio
Useful apps, properly made.
AS Studio creates focused Android tools with clean interfaces, practical features, local-first workflows, and a straightforward user experience.
Notivra Notes
Thoughts, systems and time capsules.
MathPro 300
A clear scientific calculator for daily use.
Published applications
Three tools.
Three clear jobs.
No inflated feature lists and no unnecessary complexity. Each app is built around a specific task and a clean workflow.
PDF Image Converter
Convert PDF pages to JPG or PNG, or combine selected images into one PDF file. Processing happens locally on the device with quality and save-folder controls.
Notivra Notes
A private space for notes, ideas, moods, personal systems, visual mindspace, search, and time capsules that open on a chosen date.
MathPro 300 Calculator
A focused scientific calculator built for students and everyday calculations, with a familiar workflow and a clean interface.
How we work
Less noise.
Better tools.
AS Studio focuses on practical Android products: clear design, predictable behavior, minimal permissions, local processing where possible, and features that earn their place.
Designed for real use
Every screen is built around the user’s next action.
Privacy-aware
Local storage and local processing are preferred when
the app allows it.
Independent development
Focused products, direct support, and continuous
improvement.
Privacy & verification
Clear by design.
Last updated: July 31, 2026
Local app data
AS Studio apps may store preferences, notes, selected files, conversion settings, history, or app state locally on the user’s device. Users can remove local data from the app, Android settings, or by uninstalling the app.
PDF and image files
PDF Image Converter uses files selected by the user only to perform the requested conversion. Conversion is performed locally on the device and the files are not uploaded to an AS Studio server.
Notes and personal content
Notes, moods, systems, thoughts, and time capsules created in Notivra Notes are intended to remain on the user’s device unless a future feature clearly states otherwise.
Advertising and purchases
Some AS Studio apps use Google AdMob and Google Play Billing. These services may process information needed for ads, purchases, diagnostics, fraud prevention, and service delivery. AS Studio does not store payment card information and does not sell user data.
Contact
Privacy and support inquiries: AS.Studio.Jo@gmail.com
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Support
Talk directly to AS Studio.
Questions, support requests, and business inquiries are welcome.