# Petal Layout Pro vs Easy Unit

The clearest difference is price: Easy Unit at Free against Petal Layout Pro's $3.99. Easy Unit also leads on update cadence (every 3 weeks vs every 41 months). Petal Layout Pro's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Easy Unit is free to download; Petal Layout Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Petal Layout Pro ships an update every 41 months, Easy Unit every 3 weeks. The most recent releases landed on September 15, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Petal Layout Pro | Easy Unit |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.8 (19 ratings)](https://appshunter.io/ios/app/easy-unitconvert-units/id1643640909/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 41 months | **Every 3 weeks** |
| Monetization | Paid | **Ad-supported** |
| Size | 1 MB | 27 MB |
| Requires iOS | 16.1 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) |

## What reviewers say

### Petal Layout Pro

[App page](https://appshunter.io/ios/app/petal-layout-pro/id1486823832)

This app assists in the fabrication of spherical and hemispherical heads by calculating precise petal layouts. It supports various part divisions for accurate flat pattern development, ideal for pressure vessel and storage tank construction.

**Highlights:** Sphere petal layout calculation, Hemispherical head petal layout calculation, Multiple part divisions (12, 24, 48), Unit setting for mm/inches, Flat pattern development, Supports pressure vessel fabrication

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

**In-app purchases:** none


### Easy Unit

[App page](https://appshunter.io/ios/app/easy-unitconvert-units/id1643640909)

This app simplifies unit conversions with a wide range of tools. Easily convert currencies, weights, measurements, and time with a user-friendly interface. It's designed for quick and accurate calculations.

**Highlights:** Currency conversion, Weight conversion, Feet and inches calculation, Hours calculation, Multiple unit types

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

**In-app purchases:** none


## Frequently asked questions

### Is Petal Layout Pro free?

Petal Layout Pro costs $3.99, with no in-app purchases.

### Is Easy Unit free?

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

### Do Petal Layout Pro or Easy Unit have ads?

Easy Unit shows ads; Petal Layout Pro does not.

### Which is updated more often, Petal Layout Pro or Easy Unit?

Petal Layout Pro ships an update every 41 months, and Easy Unit every 3 weeks. Most recently, Petal Layout Pro was updated on September 15, 2026 and Easy Unit on September 8, 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.*