# Solution Dilution Calculator vs Film Process Timer

The clearest difference is price: Film Process Timer at Free against Solution Dilution Calculator's $2.99. Film Process Timer also leads on review sentiment (33% vs 0%) and update cadence (every 6 weeks vs every 22 months). Solution Dilution Calculator's advantage is rating (5.0 vs 2.5) and in-app purchases (none vs 1). On ratings volume, ads and device support there is nothing between them.

Film Process Timer is free to download; Solution Dilution Calculator costs $2.99 up front. Film Process Timer sells 1 one-off in-app purchase. Solution Dilution Calculator asks for nothing beyond the download.

Solution Dilution Calculator holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews complicate that: 0% of Solution Dilution Calculator's written reviews are positive against 33% of Film Process Timer's, so the app with the better star average is not the one people write more warmly about.

Solution Dilution Calculator ships an update every 22 months, Film Process Timer every 6 weeks. The most recent releases landed on September 10, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Solution Dilution Calculator | Film Process Timer |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/solution-dilution-calculator/id1353265965/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/film-process-timer/id1578241522/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 6 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 2 MB |
| Requires iOS | **13** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Andrzej Zawadzki](https://appshunter.io/developer/1578241524) |

## What reviewers say

### Solution Dilution Calculator

[App page](https://appshunter.io/ios/app/solution-dilution-calculator/id1353265965)

This utility app helps users calculate the precise volume of stock concentrate needed to create a diluted solution of a specific concentration and volume. It supports various concentration units and is designed for educational and research laboratory use.

**Highlights:** Dilution calculations, Supports mass/volume units, Supports weight/volume units, Ideal for labs and education, User-friendly interface

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

**In-app purchases:** none


### Film Process Timer

[App page](https://appshunter.io/ios/app/film-process-timer/id1578241522)

This app helps manage film developing processes with customizable multi-step timers. It offers a special darkroom mode with red hues and allows synchronization across devices. Predefined timers are available in the free version, with expanded features in the paid version.

**Highlights:** Multiple customizable timers, Multi-step timer configuration, Darkroom color mode, Home screen notifications, Timer grouping and favorites, iCloud synchronization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock features | $3.99 | one-time |


## Frequently asked questions

### Is Solution Dilution Calculator free?

Solution Dilution Calculator costs $2.99, with no in-app purchases.

### Is Film Process Timer free?

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

### Which has better reviews, Solution Dilution Calculator or Film Process Timer?

Solution Dilution Calculator is rated higher. Solution Dilution Calculator averages 5.0 out of 5 from 1 ratings, while Film Process Timer averages 2.5 from 2 ratings.

### Do Solution Dilution Calculator or Film Process Timer have ads?

Neither Solution Dilution Calculator nor Film Process Timer shows ads.

### Which is updated more often, Solution Dilution Calculator or Film Process Timer?

Solution Dilution Calculator ships an update every 22 months, and Film Process Timer every 6 weeks. Most recently, Solution Dilution Calculator was updated on September 10, 2026 and Film Process Timer on June 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*