# Fertilizer Calc App vs VIP IoT Plus

The clearest difference is in-app purchases: VIP IoT Plus at none against Fertilizer Calc App's 2. Fertilizer Calc App's advantage is update cadence (every 2 months vs every 59 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Fertilizer Calc App sells 2 in-app purchases, starting at $1.99 per month. VIP IoT Plus asks for nothing beyond the download.

Fertilizer Calc App ships an update every 2 months, VIP IoT Plus every 59 months. Both last shipped on October 18, 2026.

## The numbers

| Metric | Fertilizer Calc App | VIP IoT Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/fertilizer-calc-app/id1450299266/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 59 months |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 17 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alberto Giambone](https://appshunter.io/developer/1412648174) | [VIP AGRICULTURE COMPANY LIMITED](https://appshunter.io/developer/1522750991) |

## What reviewers say

### Fertilizer Calc App

[App page](https://appshunter.io/ios/app/fertilizer-calc-app/id1450299266)

This app helps farmers precisely calculate fertilization needs for their crops. Users can input field details, set fertilization targets for key nutrients like N, P, and K, and determine the required application rates per hectare. It also supports custom area units for flexible calculations.

**Highlights:** Calculate N, P, K, MG, CA needs per field, Set fertilization targets, Determine Kg/Ha for each element, Add custom area units, Supports multiple custom units with Pro membership

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custom Area Unit | $1.99 | per month |
| Custom Area Unit | $9.99 | per year |


### VIP IoT Plus

[App page](https://appshunter.io/ios/app/vip-iot-plus/id1522750989)

**In-app purchases:** none


## Frequently asked questions

### Is Fertilizer Calc App free?

Fertilizer Calc App is free to download, with in-app purchases available.

### Is VIP IoT Plus free?

VIP IoT Plus is free to download, with no in-app purchases.

### Do Fertilizer Calc App or VIP IoT Plus have ads?

Neither Fertilizer Calc App nor VIP IoT Plus shows ads.

### Which is updated more often, Fertilizer Calc App or VIP IoT Plus?

Fertilizer Calc App ships an update every 2 months, and VIP IoT Plus every 59 months. Most recently, Fertilizer Calc App was updated on October 18, 2026 and VIP IoT Plus 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.*