# Phase Timer Pro vs Lab Assistant

The clearest difference is price: Lab Assistant at Free against Phase Timer Pro's $4.99. Lab Assistant also leads on update cadence (every 5 weeks vs every 19 months). Phase Timer Pro's advantage is iOS requirement (15.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Lab Assistant 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 and Lab Assistant sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Phase Timer Pro ships an update every 19 months, Lab Assistant every 5 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Phase Timer Pro | Lab Assistant |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 5 weeks** |
| Size | 2 MB | 4 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Freestyle Photo & Imaging](https://appshunter.io/developer/1786429988) | [Jack Kroll](https://appshunter.io/developer/1638376186) |

## What reviewers say

### 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 |


### Lab Assistant

[App page](https://appshunter.io/ios/app/lab-assistant-darkroom-timer/id6754861810)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $1.99 | one-time |


## Frequently asked questions

### Is Phase Timer Pro free?

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

### Is Lab Assistant free?

Lab Assistant is free to download, with in-app purchases available.

### Do Phase Timer Pro or Lab Assistant have ads?

Neither Phase Timer Pro nor Lab Assistant shows ads.

### Which is updated more often, Phase Timer Pro or Lab Assistant?

Phase Timer Pro ships an update every 19 months, and Lab Assistant every 5 weeks. Most recently, Phase Timer Pro was updated on November 7, 2026 and Lab Assistant on November 4, 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.*