Local Scale Factor vs Dev Services
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Local Scale Factor
This tool calculates local scale factors and Cartesian coordinates from WGS84 GPS positions. It supports numerous local grid transformations and can convert between local postcodes and geodetic positions. It also offers map navigation to selected coordinates.
- Local scale factor calculation
- Cartesian coordinate conversion
- WGS84 GPS position input
- Local grid transformations
- Postcode to geodetic position conversion
- Map navigation
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For professional surveyors and geodesists who need to know the local scale factor and Cartesian coordinates based on WGS84 GPS positions Hundreds of local grid transformations built in. A full list of available transformations can be found at https://www.nrgsurveys.co.uk/wp-content/uploads/transformations.txt Converts latitude and longitude using local ellipsoid parameters and Helmert 7 step transformations As a bonus it converts local postcodes to geodetic positions and vice versa Open Maps navigation to the selected coordinates (If available)
Dev Services
This utility app enables font replacement within a remote inspection application. After installation, users can email for access and to add new inspection sites, providing necessary site details. Feedback and questions can also be directed via email.
- Font replacement with Google Figtree
- Request access via email
- Add new inspection sites
- Provide site details for additions
- Submit feedback and questions via email
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Font Replacement Due to licensing issues with the existing font, Avenir, the SW business team has decided to replace it with Google Figtree, which is free-licensed. This change has been implemented in the Remote Inspection mobile application. Once installed, please email RemoteInspections@ScottishWater.co.uk to request access and add new sites for inspection. If you require new sites to be added, please include the following details: SW Case Ref (if known) Site address Postcode Plot(s) For questions and feedback, please email RemoteInspections@ScottishWater.co.uk.
Screenshots
Verdict
The clearest difference is review sentiment: Local Scale Factor at 100% against Dev Services's 0%. Local Scale Factor also leads on iOS requirement (10.3 vs 12.2). 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.
Local Scale Factor ships an update every 2 months, Dev Services every 3 months. The most recent releases landed on September 23, 2026 and October 1, 2026 respectively.
| Parameter | Local Scale Factor | Dev Services |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.3 — better | 12.2 |
| Further details — not scored | ||
| Size | 65 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | NRG Surveys Ltd | Scottish Water Limited |
Customer experience
Local Scale Factor
Dev Services
In-app purchases
Local Scale Factor
No in-app purchases
Dev Services
No in-app purchases
Questions
Is Local Scale Factor free?
Is Dev Services free?
Do Local Scale Factor or Dev Services have ads?
Which is updated more often, Local Scale Factor or Dev Services?
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