# Silverlog Timer vs ProLab Film Developer

The clearest difference is price: Silverlog Timer at Free against ProLab Film Developer's $7.99. Silverlog Timer also leads on update cadence (weekly vs every 3 months). ProLab Film Developer's advantage is in-app purchases (none vs 5). On ads, device support and iOS requirement there is nothing between them.

Silverlog Timer is free to download; ProLab Film Developer costs $7.99 up front. Silverlog Timer sells 5 one-off in-app purchases. ProLab Film Developer asks for nothing beyond the download.

Silverlog Timer ships an update weekly, ProLab Film Developer every 3 months. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Silverlog Timer | ProLab Film Developer |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/prolab-film-developer/id6759682425/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | — | Paid |
| Size | 41 MB | 189 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Simon Westgate](https://appshunter.io/developer/1856537803) | [James Maher](https://appshunter.io/developer/1880183966) |

## What reviewers say

### Silverlog Timer

[App page](https://appshunter.io/ios/app/silverlog-timer/id6759198323)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nice One | $0.99 | one-time |
| Legend | $2.99 | one-time |
| Absolute Hero | $4.99 | one-time |
| Guardian Angel | $9.99 | one-time |
| Actual Saint | $29.99 | one-time |


### ProLab Film Developer

[App page](https://appshunter.io/ios/app/prolab-film-developer/id6759682425)

Achieve consistent color film development at home with real-time adjustments for temperature and chemistry. This app eliminates guesswork by actively recalculating development times based on changing conditions, ensuring repeatable results without expensive equipment.

**Highlights:** Real-time time compensation, Chemistry tracking, Dynamic Time-Temperature Engine, Push processing support, Guided workflow, Supports major C-41 kits

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

**In-app purchases:** none


## Frequently asked questions

### Is Silverlog Timer free?

Silverlog Timer is free to download, with in-app purchases available.

### Is ProLab Film Developer free?

ProLab Film Developer costs $7.99, with no in-app purchases.

### Do Silverlog Timer or ProLab Film Developer have ads?

Neither Silverlog Timer nor ProLab Film Developer shows ads.

### Which is updated more often, Silverlog Timer or ProLab Film Developer?

Silverlog Timer ships an update weekly, and ProLab Film Developer every 3 months. Most recently, Silverlog Timer was updated on October 6, 2026 and ProLab Film Developer on October 5, 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.*