Phase Timer Pro vs Lab Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Phase Timer Pro
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Fully customisable phase timer featuring groupable steps which can be configured to include audio/visual notifications for timed sequences. Can be used for anything from Chemistry Lab tests to Physical Fitness training. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Lab Assistant
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Bring clarity and consistency to your darkroom. Lab Assistant helps you build, edit, and run film development processes with confidence so you can focus on the craft, not stuck in a development book. Digitize your process and refine your favorite recipes step by step. Add notes, set precise durations, and define agitation patterns. When you’re ready to develop, Lab Assistant guides you with a clean, focused timer interface that keeps you on track from first pour to final rinse. Whether you're a seasoned printer or developing your first roll, Lab Assistant turns your workflow into repeatable results.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Phase Timer Pro | Lab Assistant |
|---|---|---|
| Price | $4.99 | Free — better |
| Update frequency | Every 19 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Freestyle Photo & Imaging | Jack Kroll |
In-app purchases
Phase Timer Pro
- Phase Timer Pro$9.991 Year
Lab Assistant
- Pro$1.99
Questions
Is Phase Timer Pro free?
Is Lab Assistant free?
Do Phase Timer Pro or Lab Assistant have ads?
Which is updated more often, Phase Timer Pro or Lab Assistant?
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