# STS TESSmobile vs Propeller Mobile

The clearest difference is rating: STS TESSmobile at 5.0 against Propeller Mobile's 3.8. Propeller Mobile's advantage is update cadence (every 2 weeks vs every 4 months) and ratings volume (10 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

STS TESSmobile holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Propeller Mobile has 10 ratings behind it against 2, so its average is the more settled of the two.

STS TESSmobile ships an update every 4 months, Propeller Mobile every 2 weeks. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | STS TESSmobile | Propeller Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sts-tessmobile/id1470671505/reviews)** | [3.8 (10 ratings)](https://appshunter.io/ios/app/propeller-mobile-3d-mapping/id1644272004/reviews) |
| Number of ratings | 2 | **10** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 14 MB | 215 MB |
| Requires iOS | **15.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Superior Traffic Services, LLC](https://appshunter.io/developer/1470671504) | [Propeller Aerobotics Pty Ltd](https://appshunter.io/developer/1077083929) |

## 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


### Propeller Mobile

[App page](https://appshunter.io/ios/app/propeller-mobile-3d-mapping/id1644272004)

This app provides field crews with a mobile 3D site inspection tool. It enables real-time navigation, site checks, and data capture to facilitate faster decision-making and keep projects on track.

**Highlights:** Live navigation, 3D site mapping, Media documentation, Grade checking, Cut-fill analysis, Surface area measurement, Stockpile volumes

**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 Propeller Mobile free?

Propeller Mobile is free to download, with no in-app purchases.

### Which has better reviews, STS TESSmobile or Propeller Mobile?

STS TESSmobile is rated higher. STS TESSmobile averages 5.0 out of 5 from 2 ratings, while Propeller Mobile averages 3.8 from 10 ratings.

### Do STS TESSmobile or Propeller Mobile have ads?

Neither STS TESSmobile nor Propeller Mobile shows ads.

### Which is updated more often, STS TESSmobile or Propeller Mobile?

STS TESSmobile ships an update every 4 months, and Propeller Mobile every 2 weeks. Most recently, STS TESSmobile was updated on October 4, 2026 and Propeller Mobile on October 17, 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.*