# DS Studio: PDF & CAD — Measure, mark up and organise

> Measure, mark up and organise (iPhone/iPad app by Dimitar Yanev.)

- Source: https://appshunter.io/ios/app/ds-studio-pdf-and-cad/id6819445524 (this page in markdown: same URL + `.md`)
- Developer: [Dimitar Yanev](https://appshunter.io/developer/6819445526)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 89 MB
- Released: 2026-10-23
- Data updated: 2026-11-10

## What is DS Studio?

DS Studio brings PDF plans and CAD drawings into one workspace for engineering, surveying and everyday document work.

PDF PLANS AND DOCUMENTS
Open PDF documents locally, navigate pages and add text, lines, shapes, highlights and drawing markups. Use calibrated distance, perimeter and area measurements, coordinate alignment, area-depth volumes and 3D polylines with vertex elevations. Save editable DS measurement information with your PDF.

ORGANISE AND ANALYSE
Use markup layers, shared selection properties, reusable real-size blocks and supported image/SVG imports. Compare areas and volumes by layer and prepare analysis reports with legends and totals. Work with interactive forms and signatures.

CAD WORKSPACE
Open DXF and supported DWG drawings, inspect layers and use supported drawing and measurement tools alongside your PDF workflow. Compatibility depends on the file version and supported entities. External references require their source files. Online conversions are separate from local document rendering.

BASIC AND PRO ACCESS
Free PDF navigation, distance, polyline, area, radius, circle and angle measurements, scale and two-point calibration, and basic rectangle/circle drawing are available without registration. Curved runs, 3D tools, layers and reports require Pro or a trial. A DS Studio account offers a 7-day Pro trial with no payment commitment. Pro features require an active entitlement after the trial.

Choose an in-app monthly auto-renewable Pro subscription or a one-time Pro Perpetual purchase. The perpetual purchase includes 24 months of maintenance and updates; Pro access continues after that period. Purchases are linked to your DS Studio account. Restore purchases and manage an Apple subscription from Account. Device and session limits depend on your licence plan.

The monthly subscription renews unless cancelled through your Apple account. Apple displays the price and terms before purchase. Manage or cancel it in your Apple subscription settings.

Documents remain on your device unless you choose a workflow that sends content to an online service, such as server conversion or account block-library sync. Keep a saved copy of important work.

Support and privacy information: ds.site-vision.uk/apple-store/support and ds.site-vision.uk/apple-store/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

OPTIONAL DS CLOUD
Save selected PDF copies in private account-linked cloud folders, reopen them on another device and autosave completed edits while online. Installed apps can keep an offline PDF copy. Storage is limited by your account allowance; keep an independent backup.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| DS Studio Pro Monthly | $10.00 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| DS Studio Pro Perpetual | $100.00 | one-time |


## Is DS Studio safe?

Not enough ratings yet to assess DS Studio.

## Is DS Studio legit?

DS Studio: PDF & CAD appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for DS Studio is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-11-09

Improved angle and perpendicular measurements, quicker snapping controls and closer PDF zoom. More Free measurement tools, clearer layer colours and labels, and improved drawing and alignment controls. Sign in with Google or Apple.

### 1.0 — 2026-11-06

No release notes.

## More apps by Dimitar Yanev

- [MY Voice - Picture AAC](https://appshunter.io/ios/app/my-voice-picture-aac/id6824167769)
- [SiteVision Engineers](https://appshunter.io/ios/app/sitevision-engineers/id6824830712)

All apps by Dimitar Yanev: https://appshunter.io/developer/6819445526

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*