BSG for SDG vs HydroCrowd
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BSG for SDG
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BSG for SDG | Learn & Act Now About the App The 'BSG for SDG' app is your comprehensive platform for everything related to the Sustainable Development Goals. Whether you want to deepen your understanding of the 17 SDGs, reflect on daily habits, or share your eco-friendly actions to inspire others, this app makes living sustainably intuitive and rewarding. The app serves as a catalyst to help adopt ‘Sustainable Human Behaviour’ as a way of life, an essential requirement for achieving the SDGs by 2030. Key & New Features: Photography Competition: Join our latest campaign celebrating native trees! Upload your photos, share your story, and compete for national recognition directly within the app. Refreshed Design: Enjoy a modernized interface with smooth carousels, clean navigation, and quick access to your personal impact metrics. Daily SDG Tips: Get daily actionable ideas delivered straight to your phone to build eco-friendly habits. Pledges & Campaigns: Take meaningful commitments and track your progress alongside thousands of changemakers. Quizzes & Vocabulary: Test your knowledge and track completed challenges in your profile. SDG Calendar: Stay updated with curated highlights of major monthly sustainability dates and upcoming events. Media Hub: Explore Sustainability related podcasts, books, videos, and the latest Sustainable Newsletter. Direct Action Hub: Easily connect with us on social media channels, subscribe to Sustainable Newsletters, apply to Organize a Seeds of Hope and Action Exhibition (SOHA) Exhibition, or Form an SDG Club. About Bharat Soka Gakkai (BSG): Developed by Bharat Soka Gakkai, an organization dedicated to achieving the UN Sustainable Development Goals through individual empowerment. Learn more at www.bharatsokagakkai.org. Sustainability isn't about one person living a perfectly eco-friendly life, it’s about millions of us taking small, everyday actions together. Download the updated app today and start your journey towards ‘Sustainable Human Behaviour’!
HydroCrowd
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HydroCrowd is a research project of the Justus Liebig University Giessen, which investigates the potential of participatory monitoring to increase the availability of hydro-climatic data for sustainable water management, especially in remote areas in the global south. The project will test different approaches to engage volunteers through the implementation and evaluation of a participatory hydro-climatic monitoring program in selected mountain regions in Ecuador, Honduras and Tanzania. Furthermore, it will demonstrate how the data collected by the volunteers can be used in hydrological modelling and, therefore, improve the prediction of climate change impact on water resources in data-scarce regions. The project outputs can be used to guide the development of future participatory monitoring programs and stimulate upscaling of the approach to other regions to address the lack of hydro-climatic data for evidence-based decision making and sustainable water management. Volunteers participate by reporting measurements from easy-to-use instruments at weather and water stations installed in the project areas in Ecuador, Honduras and Tanzania. These measurements include rainfall, air temperature and humidity, as well as the water level and turbidity of rivers and streams. To evaluate the quality of the data, the data will be compared with automated reference measurements at selected sites. These are then systematically examined and tested for their suitability for modeling. This app enables easy submission of data by the volunteers and provides instructions on how to collect data. Furthermore, users can view the data previously submitted by other volunteers. As the remote study areas have limited network access, it is recommended to download the map of your region and the locations of the stations before going to any of the HydroCrowd stations. In addition to reporting measurements from the HydroCrowd stations, volunteers also have the opportunity to create spots to record their own rainfall data, and to report weather events using ‘photo notes’. The HydroCrowd Citizen Science App is running on the SPOTTERON Platform.
Screenshots
Verdict
The clearest difference is update cadence: BSG for SDG at every 9 days against HydroCrowd's every 3 months. HydroCrowd's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BSG for SDG ships an update every 9 days, HydroCrowd every 3 months. The most recent releases landed on October 9, 2026 and September 28, 2026 respectively.
| Parameter | BSG for SDG | HydroCrowd |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 46 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Bharat Soka Gakkai | SPOTTERON Gmbh |
In-app purchases
BSG for SDG
No in-app purchases
HydroCrowd
No in-app purchases
Questions
Is BSG for SDG free?
Is HydroCrowd free?
Do BSG for SDG or HydroCrowd have ads?
Which is updated more often, BSG for SDG or HydroCrowd?
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