Proceq GPR Subsurface vs Ironworker Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Proceq GPR Subsurface
This application uses radar technology to create detailed 3D images of underground structures. It helps detect utilities, verify as-built maps, and perform structural investigations with intuitive on-site analysis and cloud collaboration features.
- Subsurface 3D imaging
- Utility line detection
- As-built map verification
- Real-time Augmented Reality visualization
- On-site data annotation
- Cloud-based collaboration and export
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Proceq GPR Subsurface: Powerful sensors with radar beams for subsurface mapping applications. Intelligent software at your fingertips. The mission behind Proceq GPR Subsurface is simple: Scan the underground to provide a clear 3D image of what lies beneath, to detect and map the findings effortlessly and reliably, and to collaborate anywhere, anytime, for utility strike prevention, as-built map verification, structural investigations and various geophysical applications. The revolutionary Proceq GS series is the world’s most advanced subsurface mapping system, equipped with Stepped-Frequency Continuous-Wave (SFCW) technology and precise GNSS positioning. The true-ultrawideband antenna system and Swiss-made, optimized electronics deliver unparalleled resolution and penetration depth - at the same time. The magic starts once you connect the GS9000 or GS8000 wireless to your iPad and fire up the Proceq GPR Subsurface app. The carefully designed user interface increases your productivity by making measurements and analysis simple and intuitive; for example, by switching between top and sectional views with a simple gesture. A rich feature set brings advanced workflows on-site, so that you can get more things done while in the field. See the heatmap of the subsurface form in front of your eyes at the specified depth range, annotate your findings with precise geolocation, tags, photos, voice memos and comments in the logbook. Access and share them with colleagues anywhere, anytime, and export your measurements in one click, in the form of rich reports, the most common CAD/GIS mapping formats, or raw data for further processing, all over the cloud. Detect utility lines and label them accordingly to produce as-built maps, or digitize any other findings on the ground. Get an instant understanding of what is below your feet with the revolutionary Free Path 3D real-time visualization, or superimpose your area scans onto the real world with Augmented Reality - unique features in the industry. Download the free app now and explore the state of the art of subsurface mapping with the included demo files.
Ironworker Pro
This offline field reference app provides welders, ironworkers, and fabricators with essential tools. It includes weld symbols, rigging calculations, construction calculators, steel guides, and a job log with a timesheet, all designed for use without a signal.
- Weld symbols and settings
- Rigging load limits and angle calculator
- Construction and tape measure guide
- Steel materials and cutting guides
- Job log with photos and hours tracker
- Offline functionality
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Built by a working ironworker for the people who actually do the work — welders, ironworkers, fabricators, and riggers. Over 40 field references in your pocket, and every bit of it works offline, so a dead signal on the jobsite doesn't matter. No fluff. No login. No account. Just the things you actually look up on the iron. SEE IT, DON'T JUST READ IT 15 animated diagrams that show how the work really goes: Fillet welds — anatomy, watch it weld, common mistakes, what inspectors check Full penetration (CJP) vs partial (PJP) — watch a groove fill root to cap Weld symbols, joint types, groove types, multi-pass Laying a bead in stick, MIG, TIG, and flux core Welding positions — fillet, groove, and pipe Torch cutting, plasma cutting, heat colors, distortion Rigging hitches and weld defects THE TOOLBOX Eight calculators built for real jobsite math: Steel weight — beams and plate, pounds and tons Fraction / decimal / millimeter converter Triangle — rise, run, diagonal, angle Pipe offset — travel and run at any fitting angle Bolt circle layout — hole coordinates and chord spacing Rigging load — tension per leg as the sling angle drops Welding amperage by process and thickness Cut list — saves your pieces and totals the footage Plus favorites, recent tools, and a notes pad that stays put. SLING ANGLE VISUALIZER Drag the slider and watch the load multiply as the angle drops. A 30° sling puts twice the load in every leg. Know it before you rig it. PRO TAPE CALCULATOR Feet-inch-fraction math that works the way you talk. Punch in 12 ft 4 in 3/8 and add, subtract, multiply, divide. Convert feet straight to total inches for the plasma table. Area, volume, right angle, and rafter math built in. REFERENCE Weld symbols, electrode and settings charts, plasma cut charts, bolt torque and turn-of-nut tables, crane hand signals, material guide for A36, A572, stainless and aluminum, rebar, drill speeds, grinding discs, and more. SEVEN THEMES Iron, Arc, Ironblood, Field, Steel, Rose, and Daylight — pick whatever reads best in your light. BUILT FOR THE FIELD Works 100% offline No account, no sign-up, no ads Fast and readable with gloves on, in daylight IronWorker Pro is a field reference and training aid — not an engineering authority. Always follow your drawings, your WPS, the sling tag, a qualified rigger, and your employer's safety program. Welding and rigging are life-safety work. When in doubt, ask a competent person. Built for the iron. Trusted on the job.
Screenshots
Verdict
Proceq GPR Subsurface and Ironworker Pro both sit at 5.0 stars, but that hides the real split: 100% of Ironworker Pro's written reviews are positive against 50% of Proceq GPR Subsurface's. Ironworker Pro also leads on update cadence (daily vs every 3 months) and chart position (#191 vs unranked). Proceq GPR Subsurface's advantage is price (Free vs $2.99) and iOS requirement (16.0 vs 26.0). On rating, ratings volume, 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
Proceq GPR Subsurface is free to download; Ironworker Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Proceq GPR Subsurface against 5.0 for Ironworker Pro. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews are what separate them: 50% of Proceq GPR Subsurface's written reviews are positive against 100% of Ironworker Pro's.
Proceq GPR Subsurface ships an update every 3 months, Ironworker Pro daily. The most recent releases landed on September 15, 2026 and September 21, 2026 respectively.
| Parameter | Proceq GPR Subsurface | Ironworker Pro |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (3 ratings) | 5.0 (4 ratings) |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 3 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #191 — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 1.1 GB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Screening Eagle Technologies | Antonio Pebworth |
Customer experience
Proceq GPR Subsurface
Ironworker Pro
In-app purchases
Proceq GPR Subsurface
No in-app purchases
Ironworker Pro
No in-app purchases





