# Hay App vs Auto Agent

The clearest difference is rating: Auto Agent at 4.9 against Hay App's 3.5. Auto Agent also leads on ratings volume (42K vs 4) and device support (3 vs 1). Hay App's advantage is in-app purchases (none vs 6) and iOS requirement (12.4 vs 15.0). On price, update cadence and ads there is nothing between them.

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

Auto Agent holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: Auto Agent has 42K ratings behind it against 4, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Hay App | Auto Agent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/hay-app/id1063775910/reviews) | **[4.9 (42K ratings)](https://appshunter.io/ios/app/auto-agent/id1110395367/reviews)** |
| Number of ratings | 4 | **42K** |
| Positive reviews | — | 74.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 69 MB | 53 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Harvest Tec, Inc](https://appshunter.io/developer/975695298) | [EZ LYNK](https://appshunter.io/developer/1110395366) |

## What reviewers say

### Hay App

[App page](https://appshunter.io/ios/app/hay-app/id1063775910)

Control your automatic hay preservative applicator directly from your iPad. Access operator manuals, repair parts, and preservative information. Monitor baling speed, moisture content, and preservative usage in real-time.

**Highlights:** iPad control for hay preservative applicators, Real-time moisture content display, Baling speed and tonnage monitoring, Preservative volume and application rate tracking, Access to operator manuals and repair parts, Bluetooth connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Hay App free?

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

### Is Auto Agent free?

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

### Which has better reviews, Hay App or Auto Agent?

Auto Agent is rated higher. Hay App averages 3.5 out of 5 from 4 ratings, while Auto Agent averages 4.9 from 42K ratings.

### Do Hay App or Auto Agent have ads?

Neither Hay App nor Auto Agent shows ads.

### Which is updated more often, Hay App or Auto Agent?

Hay App ships an update every 3 months, and Auto Agent every 3 months. Most recently, Hay App was updated on October 12, 2026 and Auto Agent on October 18, 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.*