Hay App vs Auto Agent
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hay App
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.
- 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
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The Hay App from Harvest Tec is a convenient tool to control your Automatic Hay Preservative Applicator with an iPad on your John Deere, New Holland, Case IH, AGCO, or other brand of hay baler, as well as immediate access to operators manuals, repair parts, and hay preservative info at the touch of a finger. The Hay App gives you all the same features as the prior generation Touch Screen Display through a Bluetooth connection on your iPad or iPad Mini. Making the highest quality hay has never been easier! Displays the following information while you bale: • Moisture content • Speed of baling (tonnage) • Volume of preservative used per bale • Target application rate and actual application rate • Total tons baled Requires Bluetooth antenna. See your local dealer for details.
Auto Agent
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.
- 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
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The EZ LYNK Auto Agent combines function and convenience, revolutionizing the way you monitor, diagnose, and update your vehicle's software. Carry the automobile industry's most powerful tool in your pocket. - Display your vehicle's live data - Read and clear Diagnostic trouble codes - Create data recordings that can be played back at your convenience - Send data recordings to your chosen technician - Connect your technician to your automobile for remote assistance - Save yourself trips to your repair facility by allowing your technician to access your vehicle's data port - Install vehicle software updates sent directly to you from your chosen technician
Screenshots
Verdict
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.
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. 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 17, 2026 respectively.
| Parameter | Hay App | Auto Agent |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) | 4.9 (42K ratings) — better |
| Positive reviews | — | 74.6% of reviews |
| Number of ratings | 4 | 42K — better |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 12.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 69 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Harvest Tec, Inc | EZ LYNK |
Customer experience
Hay App
Auto Agent
Bugs and requests
Hay App
Not enough reviews yet to summarise bugs or requests.
Auto Agent
Reported bugs
5 issues- 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
5 requests- 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
In-app purchases
Hay App
No in-app purchases
Auto Agent
- 1 credit$1.99
- 5 credits$9.99
- 10 credits$19.99
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- 20 credits$39.99
- 50 credits$99.99
- 100 credits$199.99









