Comparison

Sofia Coin vs Kaksi

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

Head to head
About

Sofia Coin

Earn virtual currency by choosing sustainable transportation in Sofia, like walking, cycling, or using scooters. This initiative contributes to cleaner air and supports the development of pedestrian and bike paths within the city.

Highlights
  • Earn virtual currency
  • Sustainable transportation rewards
  • Promotes cleaner air
  • Supports urban mobility infrastructure
  • Track walking, cycling, and scooter use
Features
Read full description

Използвайте устойчиво придвижване в София - пеша, с колело, с тротинетка - и печелете награди с натрупване на виртуална валута. Така помагате на града да има по-чист въздух, а София инвестира в реално използваните пешеходни и вело трасета.

About

Kaksi

Features
Read full description

kaksi is a free of charge mobile application that motivates you to live healthier through gamification! Smart algorithm called DZI Energy adapts to your sport habits and increases your level of activity helping you to achieve the optimal daily values for you. 5 main benefits of the app: Track & analyze your daily activity levels*. Monetize your activity into exclusive offers from DZI’s wide partnership network. Improve your knowledge on health and sport topics reading only high quality & verified information. Send an SOS signal with your location and health record to emergency contacts in case of need. Get an exclusive fast access to DZI’s digital health solutions. FUNCTIONALITIES Avatar – kaksi gives you the opportunity to digitalize yourself and observe how your activity reflects your appearance. Newsfeed – Verified and trustful publications on topics related to health – food, mental health, food additives, workouts, sport, prevention, innovations and technologies. Daily Activity – Track, analyze & observe the most important health data – steps, distance traveled, burned calories, blood oxygen, sleep and heart rate. Workouts – Start your workout, map your route and save it whether you go for a walk with the dog, do your morning jogging or are with friends in the park. Friends / SOS Contacts – Invite friends directly from your phone list and share information for your location with them. Add them into your Emergency contact list and send them a notification in case of need. DZI Pearls – In-app currency you earn reaching your DZI Energy smart algorithm, participating in quizzes, inviting friends and fulfilling your account information. DZI Market – This place in the mobile app where you can monetize your DZI Pearls into exclusive offers from our partners – from free fresh juice shots to discounts for sport equipment, SPA treatments, etc. Health card – Digitalize your DZI Health card and help us to reach our goal – to improve our lives, reducing our negative imprint. Health record – Your personal health hub – information for your blood type, allergies, special condition or/and regular medicine intake. You choose whether this information will be visible to your emergency contacts. Digital Health Solutions – Entry point for all digital health-related solutions offered by DZI Life Insurance – access to Healee & Superdoc, Claims submission, etc. Notification management – You know your own preferences the best – manage proactively which notifications you want to receive and which – not. Biometric access – Health data is sensitive data. If you want to protect it better – you have this chance by activating biometric access only. *kaksi reads health information from native health hubs and based on that information increases your activity levels through the DZI Energy algorithm. Officially supported mobile applications – Apple Health, Google Fit. **kaksi is a mobile application for wider audience – you do not have to be a DZI customer to activate your profile and get advantage for in-app functionalities.

Screenshots

Sofia Coin1 screens
Kaksi4 screens

Verdict

The call

The clearest difference is update cadence: Sofia Coin at every 9 days against Kaksi's monthly. Sofia Coin also leads on iOS requirement (13.0 vs 15.1). 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

Sofia Coin ships an update every 9 days, Kaksi monthly. The most recent releases landed on July 8, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 6 level
Sofia Coin versus Kaksi: the parameters behind the verdict, then further details
ParameterSofia CoinKaksi
PriceFreeFree
Positive reviews66.7% of reviews—
Update frequencyEvery 9 days — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size33 MB64 MB
Age rating4+4+
DeveloperCENTER FOR URBAN MOBILITY EADDZI Life Insurance EAD

In-app purchases

None

Sofia Coin

No in-app purchases

None

Kaksi

No in-app purchases

Questions

Is Sofia Coin free?
Sofia Coin is free to download, with no in-app purchases.
Is Kaksi free?
Kaksi is free to download, with no in-app purchases.
Do Sofia Coin or Kaksi have ads?
Neither Sofia Coin nor Kaksi shows ads.
Which is updated more often, Sofia Coin or Kaksi?
Sofia Coin ships an update every 9 days, and Kaksi monthly. Most recently, Sofia Coin was updated on July 8, 2026 and Kaksi on September 10, 2026.

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