# Techline Calculator vs Spagnol Supervision

The clearest difference is rating: Techline Calculator at 3.1 against Spagnol Supervision's 1.0. Techline Calculator also leads on monetization model (free vs subscription) and ratings volume (7 vs 1). On price, update cadence, 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.

Techline Calculator holds the better App Store score, 3.1 against 1.0. That said, the two scores are not equally well evidenced: Techline Calculator has 7 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Techline Calculator | Spagnol Supervision |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (7 ratings)](https://appshunter.io/ios/app/techline-calculator/id594292322/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/spagnol-supervision/id1449838212/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Subscription |
| Size | 10 MB | 108 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Visual Impact Technologies Inc.](https://appshunter.io/developer/511035964) | [Spagnol s.r.l.](https://appshunter.io/developer/1449838211) |

## 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


### Spagnol Supervision

[App page](https://appshunter.io/ios/app/spagnol-supervision/id1449838212)

Control your Spagnol devices remotely from your phone or tablet. Requires an account subscription for full functionality.

**Highlights:** Remote device control, Phone and tablet compatibility, Account subscription required, Spagnol device integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Techline Calculator free?

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

### Is Spagnol Supervision free?

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

### Which has better reviews, Techline Calculator or Spagnol Supervision?

Techline Calculator is rated higher. Techline Calculator averages 3.1 out of 5 from 7 ratings, while Spagnol Supervision averages 1.0 from 1 ratings.

### Do Techline Calculator or Spagnol Supervision have ads?

Neither Techline Calculator nor Spagnol Supervision shows ads.

### Which is updated more often, Techline Calculator or Spagnol Supervision?

Techline Calculator ships an update every 2 months, and Spagnol Supervision every 2 months. Most recently, Techline Calculator was updated on October 23, 2026 and Spagnol Supervision on October 22, 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.*