J & S Studio | Practical Mobile & Web Applications
Cross-Platform Applications

Practical Mobile & Web Apps to
Simplify Everyday Tasks

At J & S Studio, we design and build practical, user-friendly mobile and web applications. From tracking your tiny neighborhood library to decoding vehicle VINs in the field or designing screenshot layouts, we build fast, secure utilities that just work.

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My Library Helper App Screen Lot Lister App Screen ReSeller Receipts App Screen

Our Application Portfolio

Explore our cross-platform mobile utilities and web applications designed for high performance and clean integration.

My Library Helper App Icon

My Library Helper

Books & Community Scanner

Manage your neighborhood tiny library or community book exchange effortlessly. Scan barcodes, auto-pull titles, authors, and cover art, and instantly share lists of available books with neighbors.

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Download on the App Store
Get it on Google Play In Development
Lot Lister App Icon

Lot Lister

Automotive VIN Scanner

A native utility for automotive professionals. Scan VIN barcodes on vehicle windshields or door jambs, auto-decode complete vehicle specifications using the NHTSA database, and export structured inventory lists.

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Download on the App Store
Get it on Google Play Roadmap
ReSeller Receipts App Icon

ReSeller Receipts

Coming Soon

Expense Scanner & Organizer

An essential utility for e-commerce and retail sellers. Scan purchase invoices using camera OCR, auto-extract tax figures, assign expense categories, and save records securely to your local files directory.

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Coming Soon to the App Store Coming Soon
Get it on Google Play Roadmap

AppShots Studio

Web App

Screenshot Builder Utility

A browser-based screenshot builder workspace for mobile developers. Construct gorgeous screenshot mockups and marketing assets for App Store page layouts with custom framing, background layouts, and text styling.

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Frequently Asked Questions

Learn more about J & S Studio apps, platforms, data policies, and features.

What apps does J & S Studio make?

We design and develop practical mobile utilities and web-based workspaces. Our current lineup includes My Library Helper (a book exchange cataloger), Lot Lister (an automotive VIN scanner), ReSeller Receipts (an expense scanner), and AppShots Studio (a web-based screenshot designer).

Are these apps available on Android and the Web?

Yes, we are actively expanding! Our web app AppShots Studio is fully live. The Android version of My Library Helper is in active development, and Android versions of Lot Lister and ReSeller Receipts are on our roadmap.

How do J & S Studio apps handle my data?

Privacy is our priority. Our mobile apps are designed as independent, local-first applications. All scanned books, VINs, or receipts are stored securely directly on your device rather than on our servers. This keeps your personal information private, secure, and accessible even when offline.

Does Lot Lister require a subscription?

Lot Lister can be downloaded and used for free with core scanner capabilities. A Premium monthly subscription is available to disable advertisements and remove export watermarks on compatible platforms.

How does ReSeller Receipts organize files?

ReSeller Receipts features smart filename templates (e.g. {date} {merchant} {category}) that automatically format and standardize invoice names before archiving them to your Local Files directories.

App Support & Feedback

Have questions about My Library Helper or Lot Lister? Found a bug, or want to suggest a new feature? Get in touch with our development team using the contact form in the footer below.