Comparison

Tranzy vs Voltage

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

Head to head
About

Tranzy

Navigate your city with real-time bus and tram information. Find nearby stations, get accurate arrival times, and discover optimal routes. Stay informed about traffic alerts and vehicle locations for a smoother commute.

Highlights
  • Real-time route updates
  • Nearby station locator
  • Accurate arrival times
  • Optimal route planning
  • Traffic alerts
  • Vehicle location tracking
  • Bike rental station info
Features
Read full description

Tranzy is the mobile application that guides you through the city when you choose to take the bus or tram. It offers you updated real-time information about routes, the location of nearby stations, the arrival time of transportation means at the station, optimal routes based on your chosen starting point, distance to your destination, vehicles, and traffic alerts. PUNCTUAL & EFFICIENT Want to know how much time you have to wait at the station? Tranzy shows you the time it takes for transportation to arrive at the station, as well as their general schedule. Don't know which route to take? Tranzy displays nearby stations and offers you options for your desired destination. Want to know the fastest way to get there? Tranzy displays nearby stations and offers you options for your desired destination. Want to ride a specific vehicle? Tranzy filters information based on the desired means of transportation. Traffic problems? Tranzy announces deviations in routes, interventions, or blockages. SMART & MODERN The application uses real-time data provided by the GPS system of public transportation means, synchronized with your smart phone, so you know exactly how much time you have to wait at the station. You can use the application with the location service enabled, manually enter addresses, or select the location directly on the map. Everything is done through a friendly and easy-to-use interface. FRIENDLY TO THE CITY Tranzy monitors self-service bike rental stations, displaying the real-time number of bikes and available spots in the station network. The optimal functioning of these solutions depends on the daily planning and correct allocation of vehicles to the route by the public transportation operator, as well as the condition and functioning of GPS systems. Download the application and discover your urban travel guide. Write to us about how Tranzy helps you and what you like about it, as well as for feedback or questions at support@tranzy.ro, on Facebook & Twitter @tranzyAI. We read each message separately. And we answer the same way!

About

Voltage

Features
Read full description

Voltage shows you every public charger nearby, scores each one out of 100 for your exact car, and tells you plainly whether it is worth the drive. WHAT THE SCORE MEANS ChargerScore is out of 100 and weighs speed, number of stalls, whether the site is reported working, access, and how far away it is. Set your car once β€” battery size, maximum charging speed and plug type β€” and every score is recalculated for it. A 350 kW site your car cannot plug into is not a good charger, and Voltage will not pretend otherwise. FIND ONE FAST Filter to fast, free, working, or sites with plenty of stalls. Tap any pin for speed in kW, stall count, access, connector types and a Look Around view of the entrance, so you know what you are driving into. PLAN THE WHOLE DRIVE Type where you are going and Voltage draws your route with every charger along it, plus drive time and distance. No more guessing where the gap is. HONEST ABOUT WHAT IT DOES NOT KNOW Stall counts are the total a site has, never how many are free right now. Voltage does not report live availability or prices it has not been given, and it shows when a site was last verified so you can judge for yourself. ASK IN PLAIN LANGUAGE A built-in assistant answers questions about the chargers around you in a sentence or two, using only the facts on file. Charger data comes from OpenChargeMap, the open community database. Looking up chargers sends your coordinates to OpenChargeMap to fetch what is nearby. An account is optional. VOLTAGE PRO Finding and scoring chargers, route planning and live trip tracking on your Lock Screen are free. Voltage Pro connects your Tesla through TeslaFi to show battery, range, charging and alerts at a glance, and unlocks the built-in assistant, which can also explain a photo of your car's screen and answer through Siri. The assistant needs an iPhone with Apple Intelligence. Voltage Pro is $4.99 per month or $39.99 per year, or $99.99 once for lifetime access. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of that period. You can manage your subscription and turn off auto-renewal in your Apple Account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://voltage-ev.nickrios33.workers.dev/privacy/ Voltage is independent and is not affiliated with any vehicle manufacturer or charging network.

Screenshots

Tranzy4 screens
Voltage4 screens

Verdict

The call

The clearest difference is in-app purchases: Tranzy at none against Voltage's 3. Tranzy also leads on iOS requirement (15.1 vs 27.0). Voltage's advantage is update cadence (weekly vs every 2 months). On price, ads 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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Voltage sells 3 in-app purchases, starting at $4.99 per month. Tranzy asks for nothing beyond the download.

UpkeepUpdate frequency

Tranzy ships an update every 2 months, Voltage weekly. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

Scorecard3 real differences Β· 5 level
Tranzy versus Voltage: the parameters behind the verdict, then further details
ParameterTranzyVoltage
PriceFreeFree
Positive reviews57.1% of reviewsβ€”
Update frequencyEvery 2 monthsWeekly β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
MonetizationFreeβ€”
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.1 β€” better27.0
Further details β€” not scored
Size43 MB17 MB
Age rating4+4+
DeveloperTRANZY AI S.R.L.Nicolas Rios

In-app purchases

None

Tranzy

No in-app purchases

3 purchases

Voltage

Subscriptions2
  • TesBuddy Monthly$4.991 Month
  • TesBuddy Yearly$39.991 Year
One-time1
  • TeslaBuddy Lifetime$99.99

Questions

Is Tranzy free?
Tranzy is free to download, with no in-app purchases.
Is Voltage free?
Voltage is free to download, with in-app purchases available.
Do Tranzy or Voltage have ads?
Neither Tranzy nor Voltage shows ads.
Which is updated more often, Tranzy or Voltage?
Tranzy ships an update every 2 months, and Voltage weekly. Most recently, Tranzy was updated on October 16, 2026 and Voltage on October 11, 2026.

Other comparisons