Comparison

Justinmind vs Carcon Zanzibar

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

Head to head
About

Justinmind

Create fully functional mobile app prototypes with advanced gestures, transitions, and effects. View and test your designs on mobile devices, even offline, for seamless demos and presentations.

Highlights
  • Create interactive prototypes
  • Mobile gestures and transitions
  • Offline prototype viewing
  • Cloud sharing
  • Mobile and tablet adaptation
Read full description

Justinmind’s prototyping tool is a one-stop shop for interaction design. Go far beyond a simple hotspot and create fully functional prototypes with mobile gestures, transitions and effects. Design mobile app prototypes that behave like the real thing! All your work created with Justinmind’s prototyping tool can be shared on the cloud. Once your prototypes are in the cloud, they become accessible via the Justinmind app viewer. This means you are free to test and experience your work using your mobile phone! Download your prototypes and have them at hand, working independent of internet access. Prepare for your demos or UX presentations and assure success, even when offline! The Justinmind app viewer adapts itself to your mobile and tablet devices. If you enjoy using Justinmind app, please share a nice review. It really helps!

About

Carcon Zanzibar

Features
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Carcon is the official app of the Kwasilva operation, the ZARTSA-certified operator for vehicle registration, licensing and technical inspection services in Zanzibar (ZARTSA — Zanzibar Road Transport and Safety Authority). Everything your vehicle needs — registration, inspection, licences and payments — in one app, with official records and clear, fixed fees.
 WHAT YOU CAN DO - Technical inspection — see when your inspection is due and view the result, book for next one - Road and route licences — apply for and renew commercial and route licences - Pay in seconds — fees and fines paid by mobile money (Mixx by Yas) or through Wakala agents - Traffic fines — see any fine issued against your vehicle and settle it directly - Your documents, always with you — registration certificate and licence details, keeping updated dates - Reminders — a notification before an inspection or licence runs out
 OFFICIAL AND SECURE - Operated by Kwasilva under ZARTSA certification — every action is written to the official vehicle register of Zanzibar - You are identified by your National ID and confirm each action with a one-time code sent to your phone - Fixed, transparent fees — you always see the full amount before you pay
 WHO IT IS FOR Private vehicle owners, commercial and public transport operators, and licensed agents acting on behalf of owners in Zanzibar.
 ABOUT CARCON ZARTSA sets the rules. Kwasilva as commercial operator does the work. Carcon is the technology that makes it happen. Important Disclaimers & Sources: - ⁠Government Information Source: All vehicle, fine, and licensing data is sourced directly from the official Zanzibar Road Transport and Safety Authority (ZARTSA) registry. Official portal: https://zims.zartsa.go.tz/ - ⁠ ⁠Government Entity Disclaimer: Carcon is developed and operated by Kwasilva, a certified private operator of technical inspections and vehicle registrations. https://kwasilva.com/ Carcon does not directly represent the government of Zanzibar or ZARTSA, but operates legally under the Kwasilva official mandate to facilitate these services.

Screenshots

Justinmind4 screens
Carcon Zanzibar4 screens

Verdict

The call

The clearest difference is update cadence: Carcon Zanzibar at every 11 days against Justinmind's every 5 months. Justinmind's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.6). On price, ads and in-app purchases 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

Justinmind ships an update every 5 months, Carcon Zanzibar every 11 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
Justinmind versus Carcon Zanzibar: the parameters behind the verdict, then further details
ParameterJustinmindCarcon Zanzibar
PriceFreeFree
Rating3.3 (15 ratings) — better—
Positive reviews52.4% of reviews—
Number of ratings15 — better—
Update frequencyEvery 5 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.6
Further details — not scored
Size8 MB9 MB
Age rating4+4+
DeveloperJustinmindSIG IT solutions s.r.o.

In-app purchases

None

Justinmind

No in-app purchases

None

Carcon Zanzibar

No in-app purchases

Questions

Is Justinmind free?
Justinmind is free to download, with no in-app purchases.
Is Carcon Zanzibar free?
Carcon Zanzibar is free to download, with no in-app purchases.
Do Justinmind or Carcon Zanzibar have ads?
Neither Justinmind nor Carcon Zanzibar shows ads.
Which is updated more often, Justinmind or Carcon Zanzibar?
Justinmind ships an update every 5 months, and Carcon Zanzibar every 11 days. Most recently, Justinmind was updated on November 1, 2026 and Carcon Zanzibar on November 4, 2026.

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