# Auto Agent vs ProEFI Logger

The clearest difference is review sentiment: Auto Agent at 75% against ProEFI Logger's 0%. Auto Agent also leads on rating (4.9 vs 2.0) and ratings volume (42K vs 1). ProEFI Logger's advantage is in-app purchases (none vs 6) and update cadence (monthly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Auto Agent sells 6 one-off in-app purchases. ProEFI Logger asks for nothing beyond the download.

Auto Agent holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: Auto Agent has 42K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 75% of Auto Agent's written reviews are positive against 0% of ProEFI Logger's.

Auto Agent ships an update every 3 months, ProEFI Logger monthly. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Auto Agent | ProEFI Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (42K ratings)](https://appshunter.io/ios/app/auto-agent/id1110395367/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/proefi-logger/id1643540729/reviews) |
| Number of ratings | **42K** | 1 |
| Positive reviews | **74.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 53 MB | 62 MB |
| Requires iOS | 15.0 | **12.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EZ LYNK](https://appshunter.io/developer/1110395366) | [Teslogic, Inc.](https://appshunter.io/developer/1605403177) |

## What reviewers say

### Auto Agent

[App page](https://appshunter.io/ios/app/auto-agent/id1110395367)

Monitor, diagnose, and update your vehicle's software remotely. This powerful tool allows you to view live data, read and clear diagnostic codes, and record data for your technician. Connect directly with your mechanic for remote assistance and software updates, saving you trips to the repair shop.

**Highlights:** Display live vehicle data, Read and clear diagnostic trouble codes, Create and playback data recordings, Send data recordings to technician, Remote technician assistance, Install vehicle software updates

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 credit | $1.99 | one-time |
| 5 credits | $9.99 | one-time |
| 10 credits | $19.99 | one-time |
| 20 credits | $39.99 | one-time |
| 50 credits | $99.99 | one-time |
| 100 credits | $199.99 | one-time |

**What reviewers like**

- 🚀 Great monitoring tool
- 🔧 Useful for tuning and diagnostics
- 👍 Easy to use and navigate
- 💯 Excellent customer service
- 🔋 Improved fuel economy

**What reviewers complain about**

- 🐛 Connection issues
- 🤔 Lacking some customization options
- 🔌 Compatibility problems with updates
- 📵 No native CarPlay support
- 🤷‍♂️ Unreliable tune updates

**Reported bugs**

- App crashes and freezes
- Disconnection issues with the device
- Tune files disappearing or becoming inaccessible
- Compatibility problems with iOS 14 updates
- Unreliable Wi-Fi connectivity

**Requested features**

- Native support for Apple CarPlay
- More customization options for gauges and titles
- Ability to monitor more parameters
- Improved GPS speed accuracy
- Sound alerts for warning indicators


### ProEFI Logger

[App page](https://appshunter.io/ios/app/proefi-logger/id1643540729)

This application serves as a CAN logger specifically designed for ProEFI ECUs. It allows users to record and analyze data from their ProEFI engine control units.

**Highlights:** CAN logging, ProEFI ECU compatibility, Data recording, Data analysis

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Auto Agent free?

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

### Is ProEFI Logger free?

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

### Which has better reviews, Auto Agent or ProEFI Logger?

Auto Agent is rated higher. Auto Agent averages 4.9 out of 5 from 42K ratings, while ProEFI Logger averages 2.0 from 1 ratings.

### Do Auto Agent or ProEFI Logger have ads?

Neither Auto Agent nor ProEFI Logger shows ads.

### Which is updated more often, Auto Agent or ProEFI Logger?

Auto Agent ships an update every 3 months, and ProEFI Logger monthly. Most recently, Auto Agent was updated on October 15, 2026 and ProEFI Logger on October 5, 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.*