Enter Matter vs Voltage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Enter Matter
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Enter Matter made the law simple and affordable. the best app for legal practice attorney app, families and individuals have trusted the Enter Matter Lawyer app to help them make documents, get attorney advice, and confidently protect their futures. Get the Enter Matter Lawyer Legal & Law firm app to: ► Time tracking for matters or cases Access matters, contacts, bills, notes, tasks, and calendars right from your phone, Create cases/matters and add time entries which help to create bills and invoices. ► Legal Timekeeping and Expense Tracking App Capture time and track expenses from anywhere, at any time with Enter Matter legal time-keeping app, Record all your work - Account for everything using Enter Matter time tracking software. Add time entries directly from calendar events, tasks, communication logs, notes, and documents. ► Legal Law Calendaring App ● Keep track of upcoming events ● Prevent appointment no-shows ● Keep tabs on your firm’s schedule ● Keep track of deadlines with Court Rules ● Set custom reminders ● Work collaboratively in one legal calendar ● Access your legal calendar effortlessly ► Notes Add notes for matters, add contacts, bills notes, tasks, and calendar right from your phone Transform the legal experience for all. We believe that the future of legal services is cloud-based and client-centered and that fostering these advancements will drive positive social change and create a more inclusive legal system. By focusing on the legal experience, we can have an even greater impact on how society engages with, delivers, and experiences legal services Use mobile technology to streamline your solo lawyer or firm’s operations. For more visit: entermatter.com
Voltage
Diagnose and control specific Chevrolet and Opel electric vehicles. Monitor battery health, clear fault codes, and manage vehicle functions remotely. Offers detailed insights into battery performance and cell voltages.
- HV Unlock for undrivable vehicles
- Clear Service High Voltage Charging System (SHVCS) faults
- Track battery health and cell voltages
- Remote vehicle control via Bluetooth
- Deep DTC scanning and module reset
- Monitor over 100 live parameters
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Clear SHVCS, and avoid the tow truck when the battery or BECM fails — the most complete diagnostic and control app for the Chevrolet Volt, Opel Ampera (Vauxhall), Chevy Bolt, Opel Ampera-e and Spark EV. Volt / Ampera: 2011-2019. Bolt / Ampera-e: 2017-2023. Spark EV: 2014-2016. HV UNLOCK — STAY ON THE ROAD A BECM or battery pack failure (P0AFA) can leave the car undrivable and waiting on a dealer. HV Unlock resets the condition so you can keep driving — the difference between getting home and calling a tow truck. The Service High Voltage Charging System (SHVCS) message is a separate problem: the car still drives normally but stops charging. Clear it to get charging working again, including enabling charging on Ampera 2012. This clears the fault condition; it is not a hardware repair. If the cause is still there, the fault can return. BATTERY HEALTH • Usable capacity in Ah, state of health, and degradation tracked over time • All 96 cell voltages live, cell delta, average and minimum cell voltage • Weak Cell active test with guided instructions and a clear verdict • NEW Capacity vs Mileage — how your pack compares with other cars at your mileage • NEW Resistance Index — internal resistance against a typical car of the same model year, flagged normal, elevated or high (supported models) • Six pack temperatures, coolant temp, heater power, conditioning mode • Module programming dates in HW Info — check whether a pack or module was replaced • Compare vehicles side by side; export, import or edit your history BOLT AND AMPERA-E OWNERS The two numbers you actually want, with no manual PID setup: usable capacity in Ah and cell-voltage spread. Track capacity over time instead of guessing from range, and check module programming dates to see whether your pack was replaced. RECENTLY ADDED • Dashboard Skin: switch the cluster between Volt and ELR designs (2016-2018 Volt and Cadillac ELR, separate purchase) • Tire rotation: write new wheel positions without a TPMS programming tool • Charging schedule with weekly departure times, and automatic stop at a chosen EV range • Module restart, oil and fuel life reset, HVAC Afterblow, engine speed control VEHICLE CONTROL Remote start and climate pre-conditioning over Bluetooth for cars before 2019, battery heater for cold-weather range, door and window operation, engine ON / OFF / Release, and remote wake to query modules without powering the car on. PROFESSIONAL DIAGNOSTICS Deep DTC scan across every discovered module, including SW-CAN. Module reset and DTC clearing. 100+ live parameters across 11 charted screens: Efficiency, Powertrain, HV Battery, HV Battery+, Cells, Charger, Charger+, Climate, 12V, 12V Power and TPMS — HV power and current, inverter voltage, MGA and MGB motor temps, transmission fluid temp, engine speed, oil and coolant temps, EGR (Gen 2), charger AC and DC voltage, current and power, HVAC temps and blower, per-module 12V supply for ECM, HPCM1/2, BECM, EBCM, EPS and ASCM, and tire pressure for all four wheels. ADAPTERS Standard ELM327 adapters cover most diagnostics and monitoring. For full functionality — SW-CAN access, HVAC and Infotainment, remote start and door unlock — use a vLinker MC / MC+ / MS or OBDLink MX+. Core diagnostics and monitoring are free. Advanced control, full live monitoring and the dashboard skin are paid upgrades. More info: https://thanxx.github.io/voltageapp
Screenshots
Verdict
The clearest difference is in-app purchases: Enter Matter at none against Voltage's 5. Enter Matter also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (12.0 vs 18.2). On price, ads 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
Both are free to download. Voltage sells 5 one-off in-app purchases. Enter Matter asks for nothing beyond the download.
Enter Matter ships an update every 2 days, Voltage every 5 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.
| Parameter | Enter Matter | Voltage |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (14 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 14 — better |
| Update frequency | Every 2 days — better | Every 5 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 57 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Steigern Tech LLP | Oleksandr Radchenko |
In-app purchases
Enter Matter
No in-app purchases
Voltage
- ELR / Volt Design activation$6.99
- Traffic Signs Activation (discount)$9.99
- ELR / Volt Design activation$14.99
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- Traffic Signs Activation$19.99
- Premium upgrade$24.99









