Propeller vs Fernox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Propeller
This app streamlines field service operations for businesses with mobile engineers. It allows for electronic completion of all paperwork, job management, and real-time data syncing with an online portal. Secure cloud storage ensures compliance and eliminates lost documents.
- Real-time job information access
- Electronic document creation
- Customer database management
- Job scheduling and diary management
- Access to manufacturer literature
- Photo documentation of work
- Industry-standard certification generation
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The Propeller Job Management System provides an essential software solution for any sized business with field-based engineers and compliance requirements. Propeller enables engineers to view and manage their daily operations from their mobile device and complete all their paperwork electronically from site, such as compliance certificates, quotations and invoices. The app can provide full or limited access to your customer database and allows jobs to be raised, scheduled and completed through the app from any location, on or offline. Information can be easily shared via email to clients and colleagues and is also instantly synced with the Propeller online portal, meaning office administrators can have real-time access to job data. For peace of mind, all data is stored for as long as required on your own Propeller data cloud, facilitating compliance with industry requirements and making lost paperwork a thing of the past. The Propeller app supports multiple trades and also supports corporate and social housing service and maintenance contracts. Features include personal access and reports for landlords and letting agents to keep them easily up to date with the process of their works. General App Features • Access up-to-date job information in real time synced via the cloud • Create all documentation electronically • Access and update your customer database • Raise jobs and manage your diary from the road • Instant access to manufacturer’s literature – Boiler manuals etc. • Time sheets • Document your work with photos • Access your full job history • View, print or email documents from device • Generate industry-standard or bespoke certification Service Industries Covered as Standard Domestic Gas Commercial Gas Oil Electrical Legionella Property Maintenance Bespoke Services Sectors and Documentation Available on Request
Fernox
This platform offers comprehensive water testing capabilities with an enhanced user experience. It allows users to invite managers to view submissions, features improved security with biometric login options, and includes a global address finder for efficient property detail input.
- Water testing capabilities
- Manager viewing of submissions
- Biometric/Passcode login
- Global address finder
- Automatic property re-testing recognition
- Streamlined registration
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The Fernox App is a new platform that hosts a wide range of useful information and features. Initially, the new Fernox App will have all the same water testing capabilities that our thousands of users have been using for the past 6+ years on the Fernox Water Test Apps, with some key added benefits: - The design and user experience have been completely overhauled, with emphasis on simplicity and dynamic automation. - Users can invite their managers to view their water test submissions directly from within the mobile app or web portal. - Registering has been made more efficient by introducing a one-time passcode, instead of an email password link. - Security has been increased and now gives optional (recommended) settings such as FaceID/Biometric/Passcode login and app opening. - New integration of a global address finder, including company names, streamlines the input of property details. - Smart features such as selectable previously entered addresses, enabling automatic property re-testing recognition. We're excited to continue to introduce a variety of benefits in the coming months and years! We’ll announce all updates within the Fernox App, on the web portal (https://fernox.app), and our website (http://fernox.com/app/release-notes). [:mav: 2.1.1]
Screenshots
Verdict
Propeller and Fernox are too close to call on the numbers: across 7 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Propeller ships an update fortnightly, Fernox every 4 weeks. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.
| Parameter | Propeller | Fernox |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 2 — better |
| Update frequency | Fortnightly — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 83 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Propeller Powered Ltd | Fernox Ltd |
Customer experience
Propeller
Fernox
In-app purchases
Propeller
No in-app purchases
Fernox
No in-app purchases









