Comparison

SensusMobile vs HydroData

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SensusMobile

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
Read full description

Sensus is a system for mobile sensing. While it is running, Sensus monitors various types of information flowing through the device, interacts with the user to solicit information, and coordinates the collection, anonymization, and storage of this information locally as well as remotely. Sensus has been designed and implemented for use in research advancing public health and public safety. However, Sensus is a general-purpose system. Researchers in other fields, industrial companies, and individuals interested in self-monitoring might find it useful. By default, Sensus will not collect, store, or upload any information from the device on which it is running. Sensus must be configured by the device owner in order for it do these things. Thus, as shipped, the Sensus app does not pose any privacy risks. If you participate in Sensus studies, you will be presented with a detailed description of the data to be collected. Disclaimers: This app can, with your permission, continuously monitor your phone's GPS sensor. Continued use of GPS running in the background can dramatically decrease battery life. This app integrates with the iOS HealthKit so that, with your permission, the app can track a variety of indicators related to your health and well being. This app is capable of integrating with wearable Bluetooth sensors for collection of associated data. Use of Bluetooth can dramatically decrease battery life.

About

HydroData

This app enables field data collection with map integration to pinpoint features and track your location. It supports gathering field reports, well water levels, and dam inspection data, syncing it all to the cloud when convenient.

Highlights
  • Field data collection
  • Map-based feature selection
  • Location tracking
  • Cloud synchronization
  • Well water level logging
  • Dam inspection reports
Features
Read full description

The application allows you to collect information within the field and then sync back to the cloud whenever you are ready. This includes a full map to select the feature while seeing your location on the map as well. It will also allow you to collect field reports, well water levels, and dam inspections.

Screenshots

SensusMobile4 screens
HydroData3 screens

Verdict

The call

The clearest difference is rating: SensusMobile at 5.0 against HydroData's 2.6. SensusMobile also leads on iOS requirement (10.0 vs 17.6). HydroData's advantage is ratings volume (5 vs 1). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

SensusMobile holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: HydroData has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

SensusMobile ships an update every 5 weeks, HydroData monthly. The most recent releases landed on June 25, 2026 and August 5, 2026 respectively.

Scorecard3 real differences · 6 level
SensusMobile versus HydroData: the parameters behind the verdict, then further details
ParameterSensusMobileHydroData
PriceFreeFree
Rating5.0 (1 ratings) — better2.6 (5 ratings)
Number of ratings15 — better
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS10.0 — better17.6
Further details — not scored
Size135 MB50 MB
Age rating4+4+
DeveloperUVA Apps, LLCLongitude 103

Customer experience

SensusMobile

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

HydroData

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%

In-app purchases

None

SensusMobile

No in-app purchases

None

HydroData

No in-app purchases

Questions

Is SensusMobile free?
SensusMobile is free to download, with no in-app purchases.
Is HydroData free?
HydroData is free to download, with no in-app purchases.
Which has better reviews, SensusMobile or HydroData?
SensusMobile is rated higher. SensusMobile averages 5.0 out of 5 from 1 ratings, while HydroData averages 2.6 from 5 ratings.
Do SensusMobile or HydroData have ads?
Neither SensusMobile nor HydroData shows ads.
Which is updated more often, SensusMobile or HydroData?
SensusMobile ships an update every 5 weeks, and HydroData monthly. Most recently, SensusMobile was updated on June 25, 2026 and HydroData on August 5, 2026.

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