# STS TESSmobile vs Ironworker Pro

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 (#88 vs unranked). On rating, ratings volume, ads and in-app purchases there is nothing between them.

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.

## The numbers

| Metric | STS TESSmobile | Ironworker Pro |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/sts-tessmobile/id1470671505/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/ironworker-pro/id6775681910/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#88** |
| Size | 14 MB | 3 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Superior Traffic Services, LLC](https://appshunter.io/developer/1470671504) | [Antonio Pebworth](https://appshunter.io/developer/6775265446) |

## What reviewers say

### STS TESSmobile

[App page](https://appshunter.io/ios/app/sts-tessmobile/id1470671505)

Monitor and control traffic light systems remotely. View real-time traffic signal status and adjust configurations for efficient traffic management.

**Highlights:** View traffic light status, Manage traffic light configuration, Remote monitoring, Real-time data

**Features:** macOS Compatibility

**In-app purchases:** none


### Ironworker Pro

[App page](https://appshunter.io/ios/app/ironworker-pro/id6775681910)

**Currently charting:** #88 Top Paid · Utilities (US App Store)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is STS TESSmobile free?

STS TESSmobile is free to download, with no in-app purchases.

### Is Ironworker Pro free?

Ironworker Pro costs $2.99, with no in-app purchases.

### Which has better reviews, STS TESSmobile or Ironworker Pro?

STS TESSmobile and Ironworker Pro are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do STS TESSmobile or Ironworker Pro have ads?

Neither STS TESSmobile nor Ironworker Pro shows ads.

### Which is updated more often, STS TESSmobile or Ironworker Pro?

STS TESSmobile ships an update every 4 months, and Ironworker Pro daily. Most recently, STS TESSmobile was updated on October 4, 2026 and Ironworker Pro on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*