App crawling
VROF collects information that is not available on the web from mobile apps and converts it into structured data, replacing the manual work of opening an app and copying items one by one.
3 public cases · 2024–2026
Key app crawling cases.
Each case presents the situation before adoption, the result, and screens recreated with mock data.

Real-estate presale app listing collector
Select the regions and property types you need, and the tool scrolls each app list to the end and exports the listings to Excel. It reads the screen structure the app renders instead of capturing images of the screen.

Delivery-app merchant collection and matching tool

Store-by-store size inventory collector
Common questions on this topic
- Web crawling: what is allowed? 4 criteria for collecting data legally In short: web crawling can be done legally. The key question is whether the service provider has restricted access.
- Delivery app and online store reviews: AI drafts the reply, the owner approves it In short: collection, sorting, and drafting are automated, while a person does the final check and posting. Drafting a reply for you is not the same as posting it for you.
VROF extracts data by reading the app's screen structure directly.
Apps hold the position of each on-screen item as structural data, and VROF reads that structure to locate items. Unlike reading text from screenshots, this approach finds the same item even when the font or resolution changes.
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Collects to the end of the list
Items not yet displayed are reached by scrolling and waiting. A button that is not visible is not treated as an immediate failure, and collection continues to the end of the list.
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Progress display
The current stage, item count, and completed items are shown throughout the job, so you can check progress at a glance.
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Parallel app and web collection
Information visible only in the app is collected from the app; information available on the web is collected from the web.
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Ready-to-use deliverables
Results are delivered in Excel, and the tool is provided as an executable that runs without installing Python.
Collection scope and standards
We give priority to the target service's terms of use and to privacy protection. Collection items and scope are agreed with the client in advance. Information that could identify a store or staff member has been masked in all case screens.
From KRW 550,000 per app
App data collection extracts data by operating the screens directly, so designing the interaction flow and keeping up with app updates takes more work than web collection.
Both Google Play Store and Apple App Store (Android and iOS) apps are supported. Quotes may vary with the login process, the number of screen-flow steps, and security measures. An additional 10% discount applies when ordering 3 or more apps at once (VAT excluded).
Changes to screen flows due to app updates, or modifications after the free support period ends, are billed at KRW 50,000 per hour.
Talk to VROF about app data collection.
Tell us which app and screens you need, and we will check whether the data can be collected.
Reply within 1 business day