Comparison

Bugs Matter vs Big River Watch

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

Head to head
About

Bugs Matter

Contribute to critical biodiversity monitoring by recording insect counts and journey routes. Your data helps scientists understand insect decline for conservation and education efforts. Anyone with a phone and vehicle access can participate easily.

Highlights
  • Record insect counts
  • Log vehicle journey routes
  • Contribute to biodiversity monitoring
  • Provide vehicle details for analysis
  • Easy data submission without specialist knowledge
Features
Read full description

The number of insects has been falling at an alarming rate for many years. It's no exaggeration to say that unless something is done to halt the decline, our own future could be at risk. Patterns and trends in insect numbers are nuanced, however, and we still don't have that much information on the relative rate of decline over time, and there are too few studies looking at this problem. The Bugs Matter app is an application that enables you to get involved in this critical biodiversity monitoring. Splatted insects are an unfortunate by-product of our habitual use of vehicles, but also presents us with a prime way of monitoring them. With Bugs Matter you can contribute counts of insects and other โ€˜bugsโ€™, along with the route of the journey you make in a vehicle. You can also provide details about the vehicle used (needed for data analysis) by entering the registration number. This will provide scientists with important new information that will contribute to conservation, evidence, planning, and education. Anyone with a phone and use of a vehicle can get involved with recording insect counts. It is very easy and quick to submit useful data without specialist knowledge. You do not need to be the driver of the vehicle in which you make a journey. Take action for insects and help us to study this important subject!

About

Big River Watch

Participate in citizen science by observing your local river and reporting on wildlife, water quality, and pollution. Your submissions contribute to a valuable dataset supporting river restoration efforts across the UK and Ireland. The app includes identification guides for wildlife and pollution.

Highlights
  • Citizen science river surveys
  • Record wildlife and pollution
  • Upload river photographs
  • Wildlife and pollution ID guides
  • Offline survey submission
  • Contribute to river restoration data
Features
Read full description

Our rivers face threats from plastic, sewage, nutrient and chemical pollution, which harm wildlife and us. The Big River Watch app is simple citizen science survey that anyone can take part in across the UK and Ireland, that aims to help support river restoration. All you need to do is spend a little time watching your local river and answering the questions in the app. From wildlife and water colour to plastics and pollution, Big River Watch app allows you to record your valuable observations and to upload a photograph of your local river. The app also contains handy wildlife and pollution ID guides. All of the surveys submitted will form a large data set that helps us understand what, and where, some of the problems in our rivers lie. This widespread and up-to-date information is key to support measures taken to improve our rivers. You can complete the survey at any time throughout the year, and you can do more than one survey. Surveys can be completed whilst out and then submitted at a later time if there is not sufficient mobile signal at your survey location. You should not enter the river or put yourself in a dangerous position to complete this survey. The Big River Watch is coordinated by The Rivers Trust and supported by partners and funding from: CIWEM and The Rivers Trust Foundation, for Water Research (FWR) legacy fund and Catchment Systems Thinking Cooperative (CaSTCo) project from the Ofwat Innovation fund.

Screenshots

Bugs Matter4 screens
Big River Watch4 screens

Verdict

The call

The clearest difference is review sentiment: Big River Watch at 100% against Bugs Matter's 41%. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Bugs Matter ships an update every 2 months, Big River Watch every 4 months. Both last shipped on November 3, 2026.

Scorecard1 real difference ยท 7 level
Bugs Matter versus Big River Watch: the parameters behind the verdict, then further details
ParameterBugs MatterBig River Watch
PriceFreeFree
Positive reviews41.2% of reviews100.0% of reviews โ€” better
Update frequencyEvery 2 months โ€” betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS13.0 โ€” better14.0
Further details โ€” not scored
Size28 MB32 MB
Age rating4+4+
DeveloperNatural ApptitudeThe Rivers Trust (UK)

Customer experience

Bugs Matter

Written reviews17 reviews
Positive41.2%
Neutral11.8%
Negative47.1%

Big River Watch

Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Bugs Matter

No in-app purchases

None

Big River Watch

No in-app purchases

Questions

Is Bugs Matter free?
Bugs Matter is free to download, with no in-app purchases.
Is Big River Watch free?
Big River Watch is free to download, with no in-app purchases.
Do Bugs Matter or Big River Watch have ads?
Neither Bugs Matter nor Big River Watch shows ads.
Which is updated more often, Bugs Matter or Big River Watch?
Bugs Matter ships an update every 2 months, and Big River Watch every 4 months. Most recently, Bugs Matter was updated on November 3, 2026 and Big River Watch on November 3, 2026.

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