# Tecnosul PTT vs GPD

The clearest difference is update cadence: GPD at monthly against Tecnosul PTT's every 2 months. Tecnosul PTT's advantage is iOS requirement (10.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Tecnosul PTT ships an update every 2 months, GPD monthly. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Tecnosul PTT | GPD |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free |
| Size | 23 MB | 21 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TECNOSUL LTDA](https://appshunter.io/developer/1616900527) | [Charles Steinmetz](https://appshunter.io/developer/1514567876) |

## What reviewers say

### Tecnosul PTT

[App page](https://appshunter.io/ios/app/tecnosul-ptt/id1460605295)

**Features:** macOS Compatibility

**In-app purchases:** none


### GPD

[App page](https://appshunter.io/ios/app/gpd/id1514567877)

This app helps farmers assess planting uniformity by measuring seed spacing. It calculates the Coefficient of Variation (CV%) and analyzes distribution regularity, identifying acceptable spacing, doubles, and skips to improve crop yield.

**Highlights:** Measures seed spacing uniformity, Calculates Coefficient of Variation (CV%), Analyzes distribution regularity (acceptable, doubles, skips), Identifies causes of planting errors, Aids in improving plantability

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

**In-app purchases:** none


## Frequently asked questions

### Is Tecnosul PTT free?

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

### Is GPD free?

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

### Do Tecnosul PTT or GPD have ads?

Neither Tecnosul PTT nor GPD shows ads.

### Which is updated more often, Tecnosul PTT or GPD?

Tecnosul PTT ships an update every 2 months, and GPD monthly. Most recently, Tecnosul PTT was updated on October 26, 2026 and GPD on November 3, 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.*