Comparison

Kulku vs UpCharge

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

Head to head
About

Kulku

Features
Read full description

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.

About

UpCharge

Rent a portable power bank from convenient city locations to charge your devices on the go. Simply find a station, rent a charger, and return it to any available spot when done.

Highlights
  • Rent power banks on-the-go
  • Find nearby charging stations
  • Scan QR code to retrieve charger
  • Return to any station
  • Charge devices anywhere
Features
Read full description

UpCharge is a power bank sharing tech company from Helsinki, Finland With UpCharge, you can charge your electronic devices, anywhere, anytime, on-the-go, without having to leave your device behind or worry about cables. Our powerbank rental offers freedom and convenience for people in cities, like other sharing economy services such as electric bike and scooter rental. Is your device running low on power? - Get an UpCharge power bank from the nearest station and return it to any of our locations. 1. Create your UpCharge account, add a payment method. 2. Find an UpCharge location near you using the app. 3. Scan the QR code on the UpCharge box and retrieve a power bank. 4. Charge your phone and don't worry about running out of battery! 5. Return the power bank to any of UpCharge locations whenever you are ready You can find UpCharge stations in bars, restaurants, night clubs, shops, cafes and more. Stay charged

Screenshots

Kulku4 screens
UpCharge4 screens

Verdict

The call

The clearest difference is update cadence: UpCharge at every 3 weeks against Kulku's every 6 months. UpCharge also leads on iOS requirement (13.4 vs 18.0). 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Kulku ships an update every 6 months, UpCharge every 3 weeks. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 7 level
Kulku versus UpCharge: the parameters behind the verdict, then further details
ParameterKulkuUpCharge
PriceFreeFree
Rating—3.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.4 — better
Further details — not scored
Size57 MB69 MB
Age rating4+4+
DeveloperKulkutech OyUpCharge Oy

In-app purchases

None

Kulku

No in-app purchases

None

UpCharge

No in-app purchases

Questions

Is Kulku free?
Kulku is free to download, with no in-app purchases.
Is UpCharge free?
UpCharge is free to download, with no in-app purchases.
Do Kulku or UpCharge have ads?
Neither Kulku nor UpCharge shows ads.
Which is updated more often, Kulku or UpCharge?
Kulku ships an update every 6 months, and UpCharge every 3 weeks. Most recently, Kulku was updated on September 24, 2026 and UpCharge on September 19, 2026.

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