C.A.T Manager vs Site Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
C.A.T Manager
This app securely transfers data from compatible cable avoidance tools to a cloud service. It allows businesses to monitor operator usage and analyze data from multiple devices in near real-time, helping to prevent damage to buried utilities.
- Secure cloud data transfer
- Near real-time data monitoring
- Fleet management for multiple devices
- Operator usage analysis
- Prevent utility damage
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C.A.T Manager Online for iOS links your gC.A.T4 to the Radiodetection C.A.T Manager online secure cloud. Recording what users actually do with Cable Avoidance Tools is a vital component of a quality management approach to prevent damage and harm related to excavation of buried cables and pipes. To facilitate this, Radiodetection’s gC.A.T4 records key parameters every second, and stores them in non-volatile memory. The data collected can be subsequently analysed using our PC application. For customers with a fleet of CATs the problem has been to manage and analyse the data from all these devices quickly, simply and accurately. This problem is solved with the release of the new C.A.T Manager Online service from Radiodetection. Use this iOS app to automatically transfer data from gC.A.T4s to the Radiodetection secure cloud. See data from all your CATs in near real-time, and ensure that all your operators are using their gC.A.Ts correctly. Use of the C.A.T Manager Online service requires agreement to a set of terms and conditions. Radiodetection makes no warranties of any kind, written or oral, statutory, express or implied, with respect to this app, including, any implied warranties or merchantability or fitness for a particular purpose other than as set out in the C.A.T Manager Online terms and conditions. This app is designed for use by businesses that have professional, trained, operators for their Radiodetection gC.A.T4 devices. Older gC.A.T4 devices may require a firmware update to function with this app. * iOS compatibility is only for gC.A.T4 produced from August 2016. Check the label above the battery compartment to verify if your locator is compatible
Site Diary
Streamline construction daily reporting with this app. It replaces paper logs with digital entries, integrates task management, and automatically includes weather data and photos. Supports offline use and various export formats for seamless project tracking.
- Digital daily reports
- Integrated task management
- Real-time progress monitoring
- Automatic local weather reports
- Image attachments
- Offline support
- PDF, Excel, CSV export
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Site Diary app replaces the existing paper construction daily reports, site journal or daily logs, where field workers make a report of things that occurred on their projects. With Site Diary app, we make the whole process quick, fun and simple so you both have a detailed daily report and time left to focus on building more. We developed Site Diary to address the needs of site engineers, foremen and site managers working in construction organizations, contractors and installation teams both large and small. "Site Diary allowed me to keep track of construction progress and emerging issues in real time” - Christopher Pletcher, Municipal Engineering Manager, Ayres Associates Task management/allocations feature The first product to integrate daily reports and task management. Users can create a task, add information about the task (manpower, equipment & materials to be used) and the persons it assigned to. Report progress on a task by creating a work log. The diary form will be automatically filled with all the task info which will make it a lot quicker for users to fill their daily reports. Site Diary Features include - Real-time site progress and monitoring, whereby users have visibility of work being done by site staff. Submitted reports are immediately available for review and approval by off-site personnel. - Share information. The app will allow field workers to send an email after they create an event. (This is optional) - Local weather report automatically included - every report entry is automatically linked with the prevailing weather conditions for that site at the time, which is important information to include in a daily construction report app. - Added images - photos and other images can be attached to reports. - Offline support - Sites with limited connectivity are not a problem as the app continues to perform seamlessly off-line. Data captured is saved on the device and synchronized to the cloud as soon as a connection becomes available. - User management - Add and remove users in your team - Set up site resources (labour, equipment, materials, contractors, tags) that you will use on your construction site. Tags are used to determine the type of event that is recorded, example: Safety. - Export Reports - This can be used as shift updates or project summaries and shared with staff, contractors and clients. These are done in either PDF, Excel or CSV format.
Screenshots
Verdict
The clearest difference is review sentiment: Site Diary at 88% against C.A.T Manager's 33%. Site Diary also leads on update cadence (weekly vs every 7 months). C.A.T Manager's advantage is monetization model (free vs ad-supported) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support 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.
C.A.T Manager ships an update every 7 months, Site Diary weekly. The most recent releases landed on June 10, 2026 and September 19, 2026 respectively.
| Parameter | C.A.T Manager | Site Diary |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (45 ratings) — better |
| Positive reviews | 33.3% of reviews | 87.5% of reviews — better |
| Number of ratings | — | 45 — better |
| Update frequency | Every 7 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 26 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Radiodetection Ltd. | Script&Go |
Customer experience
C.A.T Manager
Site Diary
In-app purchases
C.A.T Manager
No in-app purchases
Site Diary
No in-app purchases
Questions
Is C.A.T Manager free?
Is Site Diary free?
Do C.A.T Manager or Site Diary have ads?
Which is updated more often, C.A.T Manager or Site Diary?
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