# Leica PAULA vs Phase Timer Pro

The clearest difference is price: Leica PAULA at Free against Phase Timer Pro's $4.99. Leica PAULA also leads on in-app purchases (none vs 1) and update cadence (every 4 months vs every 19 months). Phase Timer Pro's advantage is device support (3 vs 1). On ads there is nothing between them.

Leica PAULA is free to download; Phase Timer Pro costs $4.99 up front. Phase Timer Pro sells 1 in-app purchase, starting at $9.99 per year. Leica PAULA asks for nothing beyond the download.

Leica PAULA ships an update every 4 months, Phase Timer Pro every 19 months. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Leica PAULA | Phase Timer Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 19 months |
| Size | 127 MB | 2 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Leica Microsystems GmbH](https://appshunter.io/developer/526669069) | [Freestyle Photo & Imaging](https://appshunter.io/developer/1786429988) |

## What reviewers say

### Leica PAULA

[App page](https://appshunter.io/ios/app/leica-paula/id1192699434)

**Features:** macOS Compatibility

**In-app purchases:** none


### Phase Timer Pro

[App page](https://appshunter.io/ios/app/phase-timer-pro/id6443657713)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phase Timer Pro | $9.99 | per year |


## Frequently asked questions

### Is Leica PAULA free?

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

### Is Phase Timer Pro free?

Phase Timer Pro costs $4.99, and also offers in-app purchases.

### Do Leica PAULA or Phase Timer Pro have ads?

Neither Leica PAULA nor Phase Timer Pro shows ads.

### Which is updated more often, Leica PAULA or Phase Timer Pro?

Leica PAULA ships an update every 4 months, and Phase Timer Pro every 19 months. Most recently, Leica PAULA was updated on September 17, 2026 and Phase Timer Pro on September 21, 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.*