# VgateFwUpdater vs Voltage

The clearest difference is rating: Voltage at 4.5 against VgateFwUpdater's 2.5. Voltage also leads on update cadence (every 5 days vs every 2 months). VgateFwUpdater's advantage is in-app purchases (none vs 5) and ratings volume (46 vs 14). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Voltage sells 5 one-off in-app purchases. VgateFwUpdater asks for nothing beyond the download.

Voltage holds the better App Store score, 4.5 against 2.5. Both are backed by a comparable volume of ratings — 46 and 14 respectively. Written reviews point the same way: 27% of VgateFwUpdater's written reviews are positive against 33% of Voltage's.

VgateFwUpdater ships an update every 2 months, Voltage every 5 days. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | VgateFwUpdater | Voltage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (46 ratings)](https://appshunter.io/ios/app/vgatefwupdater/id1613129761/reviews) | **[4.5 (14 ratings)](https://appshunter.io/ios/app/voltage-volt-ampera-bolt-obd/id6774315064/reviews)** |
| Number of ratings | **46** | 14 |
| Positive reviews | 26.7% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 75 MB |
| Requires iOS | **12.0** | 18.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [昌云 沈](https://appshunter.io/developer/953997834) | [Oleksandr Radchenko](https://appshunter.io/developer/6774315066) |

## What reviewers say

### VgateFwUpdater

[App page](https://appshunter.io/ios/app/vgatefwupdater/id1613129761)

This utility tool allows users to upgrade the firmware for various compatible automotive diagnostic chips. It supports a range of specific chip models, ensuring optimal performance and functionality of your devices.

**Highlights:** Firmware upgrades, Supports Icar01, Icar03, MIC3311, MIC3312, MIC3313, MIC3422, MIC1103, MIC3425 chips, Ensures optimal device performance, Easy-to-use upgrade tool

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Works great for some users
- 🚀 Quick connection and download for some
- 👍 Simple interface
- 👍 Works with specific models (FD+)
- 👍 Successfully updated firmware for some

**What reviewers complain about**

- 🐛 Difficult to connect
- 🐛 App doesn't work with iPhone
- 🐛 Connection issues
- 🐛 Doesn't recognize device (iCar Pro)
- 🐛 Update fails

**Reported bugs**

- Hard to connect
- App offers older version as upgrade
- Cannot update and use with iPhone
- Not connecting
- Doesn't actually update

**Requested features**

- German language option
- Clearer instructions
- Guidance on which Bluetooth standard to buy


### Voltage

[App page](https://appshunter.io/ios/app/voltage-volt-ampera-bolt-obd/id6774315064)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ELR / Volt Design activation | $6.99 | one-time |
| Traffic Signs Activation (discount) | $9.99 | one-time |
| ELR / Volt Design activation | $14.99 | one-time |
| Traffic Signs Activation | $19.99 | one-time |
| Premium upgrade | $24.99 | one-time |


## Frequently asked questions

### Is VgateFwUpdater free?

VgateFwUpdater is free to download, with no in-app purchases.

### Is Voltage free?

Voltage is free to download, with in-app purchases available.

### Which has better reviews, VgateFwUpdater or Voltage?

Voltage is rated higher. VgateFwUpdater averages 2.5 out of 5 from 46 ratings, while Voltage averages 4.5 from 14 ratings.

### Do VgateFwUpdater or Voltage have ads?

Neither VgateFwUpdater nor Voltage shows ads.

### Which is updated more often, VgateFwUpdater or Voltage?

VgateFwUpdater ships an update every 2 months, and Voltage every 5 days. Most recently, VgateFwUpdater was updated on November 11, 2026 and Voltage on November 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*