# CAD Reader vs DBT Timer

The clearest difference is in-app purchases: DBT Timer at none against CAD Reader's 6. DBT Timer also leads on ads (none vs shown). CAD Reader's advantage is update cadence (monthly vs every 5 months) and iOS requirement (12.0 vs 14.0). On price and device support there is nothing between them.

Both are free to download. CAD Reader sells 6 one-off in-app purchases. DBT Timer asks for nothing beyond the download.

CAD Reader ships an update monthly, DBT Timer every 5 months. The most recent releases landed on October 26, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | CAD Reader | DBT Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (22 ratings)](https://appshunter.io/ios/app/cad-reader-view-and-measure-dwg/id878550740/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 88.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 173 MB | 39 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Honghu Yuntu Technology Co., Ltd.](https://appshunter.io/developer/1480505512) | [ABB Information Systems AG](https://appshunter.io/developer/1026885389) |

## What reviewers say

### CAD Reader

[App page](https://appshunter.io/ios/app/cad-reader-view-and-measure-dwg/id878550740)

This application allows users to view, measure, and annotate CAD files and PDFs. It supports multiple drawing formats and offers tools for collaboration, including image and voice annotations. Convert PDFs to CAD and manage layers with advanced features.

**Highlights:** View DWG, DXF, and PDF files, Scale drawing and measure area/length, Add image, voice, and text annotations, Convert PDF to CAD, Layer management, Collaboration tools

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月VIP会员 | $6.99 | one-time |
| 1 Month VIP | $9.00 | one-time |
| 3个月VIP会员 | $19.99 | one-time |
| 半年VIP会员 | $24.99 | one-time |
| 1年VIP会员 | $29.99 | one-time |
| 1 Year VIP | $50.00 | one-time |


### DBT Timer

[App page](https://appshunter.io/ios/app/dbt-timer/id1510733700)

**In-app purchases:** none


## Frequently asked questions

### Is CAD Reader free?

CAD Reader is free to download, with in-app purchases available.

### Is DBT Timer free?

DBT Timer is free to download, with no in-app purchases.

### Do CAD Reader or DBT Timer have ads?

CAD Reader shows ads; DBT Timer does not.

### Which is updated more often, CAD Reader or DBT Timer?

CAD Reader ships an update monthly, and DBT Timer every 5 months. Most recently, CAD Reader was updated on October 26, 2026 and DBT Timer on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*