CT vs Door James
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CT
Monitor business mobile phone contract costs and usage easily. Transparently control billing data and services from your mobile network provider with detailed reports and an overview of all fees.
- Dashboard overview of costs and fees
- Detailed cost breakdown
- Usage data per phone number
- Contract information overview
- Monitor monthly expenses
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CT-UserView – all mobile network information at a glance This app helps you monitor the monthly costs and usage of your business mobile phone contracts in an easy way. It allows you to transparently control billing data and billing services of the specific mobile network provider in several reports. Essential information always at a glance: _ DASHBOARD An overview of all telephone numbers and fees incurred for the current month, as well as a total cost overview. COST DETAILS Breakdown of costs by individual items. USAGE DETAILS If authorised: Access to your usage data per month and phone number. CONTRACT INFO Check all existing contracts, their options and information in a quick overview. _ NOTE The app is intended for users with a mobile phone contract provided by their employing company only. It is required that the company has ordered the use of the CT services of DATANET GmbH. To use the app, an Internet connection is required. If you have any problems or ideas for further improvement, please submit them via e-mail to ct-userview@datanet.de.
Door James
Streamline office management with this app, allowing employees to plan their workday by booking desks, meeting rooms, and parking. It also provides organizations with insights for smarter space utilization and cost reduction.
- Book desks, meeting rooms, and parking
- Interactive map for resource viewing
- Find colleagues and coordinate team days
- Manage visitor arrivals and events
- Personalize dashboard and quick actions
- Report issues and request support
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Welcome to Door James — office management in your pocket. Door James helps employees plan better office days while giving organizations the insights they need to use space smarter, reduce costs, and support more sustainable hybrid work. PLAN, BOOK, AND CHECK IN Book desks, meeting rooms, parking spaces, and other workplace resources in just a few taps. View multiple resource types in one interactive map, use smart suggestions to speed up booking, and check in manually, by QR code, or automatically where enabled. CONNECT PEOPLE AND SPACES Find colleagues when location sharing is enabled, coordinate team days more easily, and make office time more valuable. With Door James Meet, you can also send invite links that let external guests choose open slots from your calendar. WELCOME VISITORS AND EVENTS Invite guests during the booking flow, manage visitor details, and create smoother arrivals with digital check-in. Door James also supports corporate events, conferences, town halls, and internal gatherings. PERSONALIZE YOUR WORKDAY Customize your dashboard, use quick actions, and create shortcuts to your favorite features and tools. Door James is designed with accessibility in mind, making the workplace experience easier for more users. SUPPORT SMARTER WORKPLACES Report issues, request support, and help workplace teams respond faster. Door James supports better space utilization, lower operating costs, improved collaboration, and more sustainable workplace planning. Features may vary depending on your organization’s settings, location configuration, and enabled modules. Download Door James and make every office day, visit, and workplace event easier to plan and manage.
Screenshots
Verdict
The clearest difference is review sentiment: CT at 67% against Door James's 0%. CT also leads on iOS requirement (12.0 vs 26.2). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CT ships an update every 3 months, Door James every 2 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.
| Parameter | CT | Door James |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (34 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 34 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 12.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 41 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | DATANET GmbH | CGI Deutschland B.V. & Co. KG |
Customer experience
CT
Door James
In-app purchases
CT
No in-app purchases
Door James
No in-app purchases









