DWTools vs Earth Science Systems Surveyor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DWTools
This application offers a collection of tools designed for servicing specific equipment. It requires a separate hardware device for vehicle connectivity. Access to the vehicle's automation bus is provided through this connection.
- Equipment servicing tools
- Vehicle automation bus connectivity
- Requires DWLink hardware
- Designed for DitchWitch equipment
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The DWTools app provides a suite of tools for use in servicing DitchWitch equipment. Please note that this app requires The DitchWitch DWLink in order to provide connectivity to the vehicle automation bus.
Earth Science Systems Surveyor
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Use Ground Penetrating Radar devices and GPS Base Stations manufactured by Earth Science Systems with your iPhone or iPad. For optimal GPS Base Station accuracy, your GPS Base Station must be authorized to receive assistance, and your iPhone or iPad must have cellular internet service. With a GPS Base Station this app allows you to: - Survey surface features of buried utilities in Survey mode. - Change mode to GPR Assistance. With a GPR Utility or GPR Concrete scanner this app allows you to: - Perform basic GPR scans to detect subsurface objects. - Measure depth of objects by fitting a hyperbola. - Export scan to PDF or PNG. - Remotely control Surveyor Pro on your Windows tablet (when used simultaneously).
Screenshots
Verdict
DWTools and Earth Science Systems Surveyor are too close to call on the numbers: across 6 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.
DWTools ships an update every 2 months, Earth Science Systems Surveyor every 3 months. The most recent releases landed on October 23, 2026 and September 15, 2026 respectively.
| Parameter | DWTools | Earth Science Systems Surveyor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 66 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | The Charles Machine Works, Inc | Earth Science Systems, LLC |
In-app purchases
DWTools
No in-app purchases
Earth Science Systems Surveyor
No in-app purchases
Questions
Is DWTools free?
Is Earth Science Systems Surveyor free?
Do DWTools or Earth Science Systems Surveyor have ads?
Which is updated more often, DWTools or Earth Science Systems Surveyor?
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