# Fuel Lock Device Simulator vs Libra Harvest

The clearest difference is in-app purchases: Fuel Lock Device Simulator at none against Libra Harvest's 3. Fuel Lock Device Simulator also leads on iOS requirement (11.0 vs 13.0). Libra Harvest's advantage is update cadence (every 3 weeks vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Libra Harvest sells 3 in-app purchases, starting at $129.00 per year. Fuel Lock Device Simulator asks for nothing beyond the download.

Fuel Lock Device Simulator ships an update every 6 months, Libra Harvest every 3 weeks. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Fuel Lock Device Simulator | Libra Harvest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/libra-harvest/id6502125511/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | — | Subscription |
| Size | 173 MB | 58 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Melcher Media & Design Inc.](https://appshunter.io/developer/491146945) | [Bitstrata Systems Inc.](https://appshunter.io/developer/715319857) |

## What reviewers say

### Fuel Lock Device Simulator

[App page](https://appshunter.io/ios/app/fuel-lock-device-simulator/id1516673364)

**Features:** macOS Compatibility

**In-app purchases:** none


### Libra Harvest

[App page](https://appshunter.io/ios/app/libra-harvest/id6502125511)

This app provides a comprehensive system for managing grain cart scales and harvest data. It automatically detects and records every unload, offering real-time insights into weight transactions, field tracking, and inventory management. Data can be viewed, shared, and exported for efficient farm operations.

**Highlights:** Automatic unload detection, Offline data collection, Field, truck, and destination tracking, Inventory management, Combine yield monitor calibration, Flexible unit display, Cloud data backup

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plant & Harvest Pro x1 | $129.00 | per year |
| Plant & Harvest Pro x2 | $259.00 | per year |
| Plant & Harvest Pro x3 | $389.00 | per year |


## Frequently asked questions

### Is Fuel Lock Device Simulator free?

Fuel Lock Device Simulator is free to download, with no in-app purchases.

### Is Libra Harvest free?

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

### Do Fuel Lock Device Simulator or Libra Harvest have ads?

Neither Fuel Lock Device Simulator nor Libra Harvest shows ads.

### Which is updated more often, Fuel Lock Device Simulator or Libra Harvest?

Fuel Lock Device Simulator ships an update every 6 months, and Libra Harvest every 3 weeks. Most recently, Fuel Lock Device Simulator was updated on October 25, 2026 and Libra Harvest on October 30, 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.*