J & S Studio | Practical Mobile & Web Applications
Independent app studio

Small apps that do one job really well.

We make focused tools for Little Free Library stewards, car dealers, resellers and app makers. They're fast, private, and keep your data on your own device.

  • Data stays on your device
  • Works offline
  • iPhone, Android & web
Lot Lister inventory screen
My Library Helper library screen
ReSeller Receipts dashboard screen

Our apps

Four tools, each built around one everyday job.

My Library Helper

For Little Free Library stewards

Scan a book's barcode to add its title, author and cover. Keep track of what's on your shelf and share the list with neighbours.

  • iPhone
  • Android
  • Free · $2.99/mo unlimited

Lot Lister

For car dealers and lot managers

Scan a VIN barcode on the windshield or door jamb and get the full vehicle specs from the NHTSA database. Export clean inventory lists.

  • iPhone
  • Android · planned
  • Free · Premium $4.99/mo

ReSeller Receipts

For e-commerce and retail sellers

Photograph a receipt and the app reads the total for you. Files are named and sorted by date, merchant and category, right in your Files app.

  • iPhone
  • Android · planned

AppShots Studio

For app developers

Turn raw screenshots into App Store and Google Play images, with device frames, headlines and backgrounds. Runs in your browser, nothing to install.

  • Web app
  • Free

How we build

Three rules every J & S app follows.

Your data stays yours

Books, VINs and receipts are saved on your phone, not on our servers. No account needed.

One job, done well

Each app solves a single task quickly, so it opens fast and stays out of your way, even with no signal.

Free to start

Every app is free to download and use. Optional upgrades unlock extras like unlimited scans.

Questions

What apps does J & S Studio make?

Four so far: My Library Helper (a book cataloger for community libraries), Lot Lister (a VIN scanner for car dealers), ReSeller Receipts (a receipt scanner for resellers) and AppShots Studio (a web-based App Store screenshot designer).

Are your apps on Android and the web?

Yes. AppShots Studio runs in any browser, and My Library Helper is on both the App Store and Google Play. Android versions of Lot Lister and ReSeller Receipts are planned.

Where is my data stored?

On your device. Scanned books, VINs and receipts are kept locally and are never uploaded to our servers, so your lists stay private and work offline.

Do I need a subscription?

No. Every app is free to use. My Library Helper offers unlimited scans for $2.99/month, and Lot Lister Premium ($4.99/month) removes the watermark from shared lists.

How does ReSeller Receipts name my files?

You pick a template such as {date} {merchant} {category}, and every receipt is renamed to match before it's saved to your Files folders.

Need a hand?

Found a bug, have a feature idea, or stuck on something? Send us a message and we'll get back to you.