Greenvolt vs Voltage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Greenvolt
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Vencedora do prémio "Portugal Digital Awards '22" para "Best Digital Sustainability Award", a Plataforma Greenvolt Comunidades centraliza toda a informação sobre a sua energia num só lugar. Tendo acesso à nossa plataforma poderá: - Ver em tempo real a sua produção, os seus consumos e a sua origem - Conectar-se à sua comunidade de energia e conhecer o papel de cada membro como consumidor ou produtor - Visualizar os seus dados históricos de produção e consumo assim como a sua poupança - Aceder ás suas faturas e todos os documentos partilhados pela empresa Greenvolt Comunidades Adira já!
Voltage
This app provides comprehensive diagnostic and control features for specific GM electric and hybrid vehicles. It allows users to monitor various vehicle parameters, perform deep diagnostics, and even control certain functions remotely via an OBD2 adapter.
- Deep DTC scanning
- Live parameter monitoring
- Real-time battery analysis
- HV Unlock function
- Remote start and climate control
- Charge management and scheduling
- Module reset and clearing
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The most comprehensive diagnostic and control app for Chevrolet Volt / Opel Ampera / Vauxhall Ampera / Holden Volt. Chevy Bolt and Opel Ampera-E are currently supported from 2017 to 2023. Connect via a supported ELM327 Bluetooth LE or Wi-Fi OBD2 adapter and take full command of your vehicle. RECOMMENDED ADAPTERS For full compatibility — SW-CAN access, HVAC and Infotainment communication, remote start, and door unlock — use an OBDLink MX+ or vLinker MS. Bluetooth LE and Wi-Fi adapters provide limited compatibility. ENHANCED VEHICLE CONTROL • Remote start (pre-conditioning) and climate control within Bluetooth range for vehicles before 2019 • Battery heater for improved cold-weather range • Charge management and scheduling • Remote door and window operation • Engine control with ON / OFF / Release support • Wake the car remotely to query modules without powering it on • Module reset and DTC clearing HV UNLOCK FUNCTION "Unbrick" your car and stay on the road with the HV Unlock function. Enable charging on Ampera 2012 by resetting the Service High Voltage Charging System. PROFESSIONAL DIAGNOSTICS • Deep DTC scan across all discovered modules, including SW-CAN network access • 100+ live parameters with two-column monitoring mode • Real-time battery pack analysis: cell voltages, temperatures, BECM voltage & current • Weak Cell active test with guided instructions and a clear verdict • Battery Coolant Pump and heater control with feedback values and charts • HW Info with module programming dates and ECM calibrations MONITORING PARAMETERS Nine dedicated screens, every value charted in real time: • Efficiency — State of Charge (displayed & raw), EV range, kWh used, EV efficiency, fuel efficiency (hybrid) • Powertrain — HV power, HV current, HV inverter voltage, transmission fluid temp, MGA & MGB motor temps, aux transmission pump speed, gear shifter position. For hybrids it also reports engine speed, engine oil & coolant temps, EGR commanded (Gen 2), EGR cooler temps (Gen 2), and HPCM engine-startup reason. • HV Battery — Pack voltage, internal resistance, cell delta, average and minimum cell voltage, six individual battery temps, battery coolant temp & speed, battery heater power, battery conditioning mode, outside/inside temps, and the last five charging-session histories. • Charger — Charger state, charging level, AC input voltage/current/power, DC output voltage/current/power, charging-system status, and (2016+) AC & DC duty cycles. • Charger Plus — Extended charger diagnostics, including duty-cycle on 2016+ vehicles. • Climate — HVAC target temp, windshield temp, cabin heat power, AC power, AC speed, blower speed, HVAC coolant temp (2016+), outside & inside temps, and remote-start counters. • 12V — 12V voltage, current, power, state of charge, charging state, maintenance mode. • 12V Power (per-module) — Individual 12V supply voltage reported by every major control module: ECM, HPCM1, MGA, MGB, HPCM2, BECM, EBCM, Brake Booster, EPS, ASCM, HVAC and Radio. Power-electronics coolant temp and pump speed included. • TPMS — Live tire pressure for all four wheels. VEHICLE HISTORY & DATA MANAGEMENT • Full history view with vehicle selection and deletion • Export, import, and edit your vehicle history with the built-in editor HEALTH INSIGHTS Critical vehicle health analysis and maintenance recommendations — ideal for DIY enthusiasts, used car buyers checking battery health, and owners tracking long-term performance. POLISHED EXPERIENCE Modern UI with Dark / Light / System theme support, a bottom status bar for at-a-glance status, and full multi-language support.
Screenshots
Verdict
The clearest difference is in-app purchases: Greenvolt at none against Voltage's 1. Greenvolt also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.2). Voltage's advantage is update cadence (every 5 days vs every 5 weeks). On price and ads 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
Both are free to download. Voltage sells 1 one-off in-app purchase. Greenvolt asks for nothing beyond the download.
Greenvolt ships an update every 5 weeks, Voltage every 5 days. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.
| Parameter | Greenvolt | Voltage |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (4 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 5 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.2 |
| Further details — not scored | ||
| Size | 34 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Greenvolt | Oleksandr Radchenko |
In-app purchases
Greenvolt
No in-app purchases
Voltage
- Premium upgrade$24.99









