About Rupin (formerly Udhaar Book)
Rupin, previously circulated under the name Udhaar Book, is a business application from Toko Lab Inc. that carries forward the familiar credit-book workflow in a modern package. The app is distributed under the package identifier com.oscarudhaarapp, so it installs alongside or replaces the earlier Udhaar Book build on the same device.
A Rebrand With Familiar Roots
The shift from Udhaar Book to Rupin keeps the identity of a ledger-style business tool intact. Anyone who kept records under the previous name will recognise the purpose immediately, and the new label simply reflects how the developer now presents the product.
Business Category Focus
Rupin sits squarely in the business category, which frames it as a working tool for day-to-day commercial record keeping rather than a leisure or media app. That positioning is consistent with the earlier Udhaar Book branding, where the emphasis was on tracking what is owed and what is received.
Device Requirements And Storage
The build requires Android 8.0 or newer. The current package weighs 173.5 MB, so it is worth confirming you have room to spare before installing, and newer devices will handle the footprint comfortably.
Release And Developer Details
The latest build is version 32.9.2, dated 2026-10-02, and comes from Toko Lab Inc. Content rating information is not provided for this listing, so check the app's own materials if that matters for your device setup.
APK Information
- Version
- 32.9.2
- Size
- 173.5 MB
- Android
- 8.0+
- File type
- APK
- Updated
- Oct 2, 2026
- Package
- com.oscarudhaarapp
- Developer
- Toko Lab Inc.
Features
Business ledger tool
Formerly Udhaar Book
Toko Lab Inc. build
Frequently Asked Questions
Is this the same app as Udhaar Book?
Rupin is presented as formerly Udhaar Book, and it uses the same package identifier, com.oscarudhaarapp. It is a business-category app from Toko Lab Inc., so the rebrand reflects a new name for the same product line rather than an unrelated application. The latest release is version 32.9.2, dated 2026-10-02.
Which Android versions can run Rupin?
The build requires Android 8.0 or newer. Devices running a more recent Android release will also work, provided they meet the general system expectations for a business application of this size. If you are unsure of your device's version, check it in your device settings before installing.
How much storage does the app need?
The current package is 173.5 MB. That is the size of the app file itself, so you should have additional free space available on top of it for normal operation and any data the app keeps. Plan for roughly 173.5 MB plus comfortable headroom.
Who develops Rupin and what category is it in?
Rupin is developed by Toko Lab Inc. and is filed in the business category. The app installs under the package name com.oscarudhaarapp, which you can use to identify it independently of its displayed name.
What is the newest version available?
The latest build listed here is version 32.9.2, released 2026-10-02. No content rating has been supplied for this listing, so that information is unavailable from this page.
