# Techline Calculator vs DropControl

The clearest difference is rating: DropControl at 4.4 against Techline Calculator's 3.1. DropControl also leads on update cadence (every 3 weeks vs every 2 months). Techline Calculator's advantage is review sentiment (25% vs 0%) and iOS requirement (13.0 vs 15.1). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DropControl holds the better App Store score, 4.4 against 3.1. Both are backed by a comparable volume of ratings — 7 and 5 respectively. Written reviews complicate that: 25% of Techline Calculator's written reviews are positive against 0% of DropControl's, so the app with the better star average is not the one people write more warmly about.

Techline Calculator ships an update every 2 months, DropControl every 3 weeks. Both last shipped on September 10, 2026.

## The numbers

| Metric | Techline Calculator | DropControl |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (7 ratings)](https://appshunter.io/ios/app/techline-calculator/id594292322/reviews) | **[4.4 (5 ratings)](https://appshunter.io/ios/app/dropcontrol/id1409694208/reviews)** |
| Number of ratings | **7** | 5 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 10 MB | 152 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Visual Impact Technologies Inc.](https://appshunter.io/developer/511035964) | [WISECONN ENGINEERING, INC](https://appshunter.io/developer/1060105575) |

## What reviewers say

### Techline Calculator

[App page](https://appshunter.io/ios/app/techline-calculator/id594292322)

This app assists with landscape design by providing calculations for project supplies, measurements, and dripline placement. It accounts for variables like soil type, plant needs, and irrigation pressure to determine emitter spacing and irrigated area. Results can be saved and recalculated, ensuring adherence to official standards.

**Highlights:** Landscape design calculations, Project supply estimation, Dripline placement guidance, Irrigated area determination, Pressure and flow rate calculations, Emitter spacing computation, Save and recalculate results

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

**In-app purchases:** none


### DropControl

[App page](https://appshunter.io/ios/app/dropcontrol/id1409694208)

Monitor and control farm irrigation and fertigation systems remotely. Track weather and soil moisture in real-time for efficient resource management and improved crop yields. Access your farm's data anytime, anywhere.

**Highlights:** Real-time weather and soil moisture monitoring, Remote irrigation and fertigation control, Map display of farm operations, Simultaneous monitoring of field nodes, Data analysis for profitable decisions, Cloud and Bluetooth connectivity

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

**In-app purchases:** none


## Frequently asked questions

### Is Techline Calculator free?

Techline Calculator is free to download, with no in-app purchases.

### Is DropControl free?

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

### Which has better reviews, Techline Calculator or DropControl?

DropControl is rated higher. Techline Calculator averages 3.1 out of 5 from 7 ratings, while DropControl averages 4.4 from 5 ratings.

### Do Techline Calculator or DropControl have ads?

Neither Techline Calculator nor DropControl shows ads.

### Which is updated more often, Techline Calculator or DropControl?

Techline Calculator ships an update every 2 months, and DropControl every 3 weeks. Most recently, Techline Calculator was updated on September 10, 2026 and DropControl on September 10, 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.*