UD Mobile vs FieldSize
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UD Mobile
Control your Universal Devices home automation controllers, including eisy, Polisy, and ISY994i. Manage Insteon, Z-Wave, Zigbee devices, programs, and network resources locally or remotely. Integrates with ISY Portal for seamless remote access.
- Control Universal Devices controllers
- Manage Insteon, Z-Wave, Zigbee devices
- Control programs and variables
- Local and remote connection options
- ISY Portal integration
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Mobile App to control the Universal Devices eisy, Polisy, and ISY994i Home Automation Controllers. Control all your Insteon, Z-Wave, Zigbee, Programs, Network Resources, Variables, and Node Servers. Local and Remote Connection options. Integrates with ISY Portal for remote connections.
FieldSize
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Measure and maintain your athletic fields with ease. Get sizes, measurements distances and re-marking predictions right on your phone. Weather, previous painting needs and even game schedules all help the app predict when you should head out and re-mark a field.
Screenshots
Verdict
The clearest difference is in-app purchases: UD Mobile at none against FieldSize's 1. UD Mobile also leads on update cadence (weekly vs every 3 months). On price, ads, device support and iOS requirement 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. FieldSize sells 1 in-app purchase, starting at $24.99 per year. UD Mobile asks for nothing beyond the download.
UD Mobile ships an update weekly, FieldSize every 3 months. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.
| Parameter | UD Mobile | FieldSize |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (37 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 37 — better | — |
| Update frequency | Weekly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 106 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Universal Devices, Inc. | Chris Weed |
In-app purchases
UD Mobile
No in-app purchases
FieldSize
- Yearly$24.991 Year
