# SensusMobile vs DOCS II

The clearest difference is update cadence: SensusMobile at every 5 weeks against DOCS II's every 58 months. SensusMobile also leads on iOS requirement (10.0 vs 15.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. 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 SensusMobile against 5.0 for DOCS II. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

SensusMobile ships an update every 5 weeks, DOCS II every 58 months. Both last shipped on October 2, 2026.

## The numbers

| Metric | SensusMobile | DOCS II |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sensusmobile/id1053498740/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/docs-ii/id1546600318/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 58 months |
| Monetization | Free | Free |
| Size | 135 MB | 91 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [UVA Apps, LLC](https://appshunter.io/developer/881105800) | [Virtual Technology LLC](https://appshunter.io/developer/1546600320) |

## What reviewers say

### SensusMobile

[App page](https://appshunter.io/ios/app/sensusmobile/id1053498740)

This system monitors device information, interacts with users for data input, and anonymizes collected data for research. It can track health indicators and integrate with Bluetooth sensors, requiring user configuration for data collection.

**Highlights:** Mobile sensing system, User interaction for data input, Data anonymization, Local and remote data storage, HealthKit integration, Bluetooth sensor integration

**Features:** macOS Compatibility

**In-app purchases:** none


### DOCS II

[App page](https://appshunter.io/ios/app/docs-ii/id1546600318)

This app automates the capture and reporting of visible emission observations for air quality compliance. It uses location data, weather, and sun angles to document opacity levels, helping users avoid costly fines. The tool generates compliance archives for regulated sources.

**Highlights:** Automated Visible Emission Observation (VEO) capture, Integration with Google Maps, compass, and inclinometers, Real-time weather and sun angle data, Opacity level documentation, Automated VEO report generation, Compliance archive creation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SensusMobile free?

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

### Is DOCS II free?

DOCS II is free to download, with no in-app purchases.

### Which has better reviews, SensusMobile or DOCS II?

SensusMobile and DOCS II are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do SensusMobile or DOCS II have ads?

Neither SensusMobile nor DOCS II shows ads.

### Which is updated more often, SensusMobile or DOCS II?

SensusMobile ships an update every 5 weeks, and DOCS II every 58 months. Most recently, SensusMobile was updated on October 2, 2026 and DOCS II on October 2, 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.*