STS TESSmobile vs Ironworker Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STS TESSmobile
Monitor and control traffic light systems remotely. View real-time traffic signal status and adjust configurations for efficient traffic management.
- View traffic light status
- Manage traffic light configuration
- Remote monitoring
- Real-time data
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View current traffic light status and manage configuration.
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
The clearest difference is price: STS TESSmobile at Free against Ironworker Pro's $2.99. STS TESSmobile also leads on iOS requirement (15.0 vs 26.0). Ironworker Pro's advantage is update cadence (daily vs every 4 months) and chart position (#96 vs unranked). 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
STS TESSmobile 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 STS TESSmobile against 5.0 for Ironworker Pro. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
STS TESSmobile ships an update every 4 months, Ironworker Pro daily. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.
| Parameter | STS TESSmobile | Ironworker Pro |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (2 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 4 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #96 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 14 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Superior Traffic Services, LLC | Antonio Pebworth |
Customer experience
STS TESSmobile
Ironworker Pro
In-app purchases
STS TESSmobile
No in-app purchases
Ironworker Pro
No in-app purchases
Questions
Is STS TESSmobile free?
Is Ironworker Pro free?
Which has better reviews, STS TESSmobile or Ironworker Pro?
Do STS TESSmobile or Ironworker Pro have ads?
Which is updated more often, STS TESSmobile or Ironworker Pro?
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