Kulku vs Crowdsorsa
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Kulku
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KULKU is the resident app for buildings equipped with the KULKU system. Open doors, answer video door calls, book shared facilities and receive information all in one app. VIDEO DOOR CALLS When a visitor calls you from the door, you see live video and can talk with them wherever you are. The door opens with a single tap, straight from the call. DOOR ACCESS Open the doors of your building with your phone. Your favourite doors stay at the top, always within reach. SHARING ACCESS Share access with a guest in seconds, whether it is a friend, babysitter or a repair person. See everything you have shared in one place and remove it whenever you like. BOOKINGS Book the sauna, laundry room and other shared spaces directly in the app. Your upcoming bookings are also shown on the home view. Information channel Your building's information channel in one place, with a notification whenever something new is published. KULKU is available in Finnish, Swedish and English. The app is intended for residents and users of properties where the KULKU system is installed. The available features vary depending on what has been enabled in your property. Signing in requires your personal KULKU credentials.
Crowdsorsa
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Crowdsorsa is a mobile game for crowdsourcing data collection and microtasks to improve the city environment. Players can earn money and compete against each other by participating in our fun and meaningful missions. The game is played by collecting or placing virtual objects on the map while taking photos or videos with your smartphone. Each object grows your earnings which you can request to be paid to your bank account whenever you want. Missions are organized only at certain times and in specific locations, to serve our clientsβ needs and requirements. Players can, for example, photograph benches, bus stops and manhole covers, record videos of roads and cycling routes, or search and destroy invasive plants in their area. You will be instructed to each mission in the Crowdsorsa app. Following these instructions is very important to ensure that your photos and videos can be approved and rewarded to you. In case you need any help, you can easily contact us through the app. To create a Crowdsorsa user account and participate in the game, you need to be at least 18 years old or 13β17 years old with parental consent.
Screenshots
Verdict
The clearest difference is update cadence: Crowdsorsa at every 3 weeks against Kulku's every 6 months. Crowdsorsa also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Kulku ships an update every 6 months, Crowdsorsa every 3 weeks. The most recent releases landed on September 24, 2026 and October 5, 2026 respectively.
| Parameter | Kulku | Crowdsorsa |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 3 weeks β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 57 MB | 142 MB |
| Age rating | 4+ | 4+ |
| Developer | Kulkutech Oy | Finnora Oy |
In-app purchases
Kulku
No in-app purchases
Crowdsorsa
No in-app purchases







