# Dozecal vs SmartPLL

The clearest difference is rating: SmartPLL at 5.0 against Dozecal's 4.2. SmartPLL also leads on update cadence (every 3 months vs every 10 months). Dozecal's advantage is ratings volume (5 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

SmartPLL holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Dozecal has 5 ratings behind it against 1, so its average is the more settled of the two.

Dozecal ships an update every 10 months, SmartPLL every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Dozecal | SmartPLL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/dozecal/id1521160089/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smartpll/id1623497556/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 27 MB | 1 MB |
| Requires iOS | **12.0** | 13.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Johan Kovacs](https://appshunter.io/developer/1486605020) | [Z-Communications](https://appshunter.io/developer/1285508714) |

## What reviewers say

### Dozecal

[App page](https://appshunter.io/ios/app/dozecal/id1521160089)

This educational calculator promotes the use of Base Twelve (duodecimal) in math and science. It offers standard mathematical functions in both duodecimal and decimal modes, with automatic conversion between them. It utilizes Reverse Polish Notation (RPN) for calculations.

**Highlights:** Duodecimal and Decimal modes, Automatic mode conversion, RPN (Reverse Polish Notation) input, Standard math functions, Trigonometric operations (degrees), Educational tool for Base Twelve

**Features:** macOS Compatibility

**In-app purchases:** none


### SmartPLL

[App page](https://appshunter.io/ios/app/smartpll/id1623497556)

This application allows users to program and control Z-COMM SSG series Smart Phase Locked Loop (PLL) modules. Adjust frequency, sweep mode, step time, and power output via Bluetooth or USB. Features LED status indicators and a rugged enclosure for versatile use.

**Highlights:** Programmable frequency, sweep, and step settings, Bluetooth and USB connectivity, LED status indicators, Rugged enclosure for field use, Internal or external reference input, High performance RF tool

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

**In-app purchases:** none


## Frequently asked questions

### Is Dozecal free?

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

### Is SmartPLL free?

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

### Which has better reviews, Dozecal or SmartPLL?

SmartPLL is rated higher. Dozecal averages 4.2 out of 5 from 5 ratings, while SmartPLL averages 5.0 from 1 ratings.

### Do Dozecal or SmartPLL have ads?

Neither Dozecal nor SmartPLL shows ads.

### Which is updated more often, Dozecal or SmartPLL?

Dozecal ships an update every 10 months, and SmartPLL every 3 months. Most recently, Dozecal was updated on November 3, 2026 and SmartPLL 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.*