Paul Demers

Known for

My PurpleAir

1app

Active nemesis

Air Matters Network Pty

Other rivals

Publisher DNA

AI intelligence is not yet available for Paul Demers. The portfolio data below is up to date.

Top niches they play in

Weather Monitors1 app

Explore the Weather Monitors niche

See every app competing in Paul Demers's strongest niche.

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Portfolio

Apps

1 app analysed

Sort by

My PurpleAir

4.2(10)

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Watch complication integration provides ambient data access

Local air quality sensor data provides clear and simple utility for daily monitoring
Unreliable connection to air quality sensors prevents consistent real-time measurement for users

Single-market publisher — every app ships only to United States.

Based on 1 of 1 app with localized market data.

User sentiment

Positive apps

Neutral / mixed

Negative apps

50/100

Avg sentiment score

Top performer

My PurpleAir

Mixed sentiment

Rivals

The rivals identified

Nemeses(1)

Air Matters Network Pty

known forAir Matters

1 app

So what?

Strategic outlook coming soon.

Frequently asked questions

How many apps does Paul Demers publish?

Paul Demers has 1 app tracked by Marlvel, primarily in the Weather category.

What kind of apps does Paul Demers make?

Paul Demers's portfolio is concentrated in Weather, with an average rating of 4.2/5 across rated apps.

Last updated

My PurpleAir

v2.5.5

6mo ago

· last scanned May 2026

Americas (1)

United States1 / 1

Core markets (1/1 apps)

United States

Air Matters competes directly by providing comprehensive air quality monitoring and global data, positioning itself as the primary alternative for users seeking broader environmental insights beyond local sensor data.

Contenders(1)

Daniel Lampe

known forSTORM-GPS Tornado Tracker

1 app4.9Weather

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This app competes for the attention of power users who prioritize high-frequency, location-specific environmental data and advanced tracking features.

Same space(4)

Evening Telegram Company

known forKXLY Weather

1 app2.8Weather

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KXLY Weather competes by providing localized, broadcast-quality weather data and emergency alerts for specific geographic regions.

Hyperlocal Weather App Yazilim Limited Sirketi

known forDark Sky Tech Weather App

1 app3.2Weather

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Shubham Singh

known forWeather-Wise

1 app3.8Weather

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WeatherFlow

known forTempestOne Weather

1 app3.7Weather

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New entrants(2)

BareBones Dev

known forRoam Weather

1 app5.0Weather

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Roam Weather is a new entrant focusing on multi-destination point forecasts, challenging the target's single-location sensor focus.

Biographics Consultoria e Design LTDA

known forWeather Forecast Retro Station

1 app5.0Weather

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What is Paul Demers's top app?

Based on user sentiment and following across the portfolio, My PurpleAir stands out as Paul Demers's flagship app tracked by Marlvel.

In how many countries are Paul Demers's apps available?

Marlvel has tracked Paul Demers's apps across 1 country.

This app competes by offering hyper-local precipitation forecasting, appealing to users who want immediate, actionable weather intelligence on their home screen.

Weather-Wise occupies the same space by offering a personalized, UI-focused approach to general weather tracking.

TempestOne targets the same hardware-conscious demographic by combining proprietary weather station data with advanced AI modeling.

This app targets the niche aesthetic market, using nostalgia to differentiate its weather data presentation.

Snapshot

Publisher DNA

Top niches they play in

Portfolio

Apps

User sentiment

Rivals

The rivals identified

Nemeses(1)

So what?

Frequently asked questions

Americas (1)

Core markets (1/1 apps)

Contenders(1)

Same space(4)

New entrants(2)