# Reciprocity Timer vs Darkroom Assistant

The clearest difference is price: Darkroom Assistant at Free against Reciprocity Timer's $1.99. Darkroom Assistant also leads on update cadence (every 4 days vs every 2 months). Reciprocity Timer's advantage is chart position (#162 vs unranked) and iOS requirement (12.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Darkroom Assistant is free to download; Reciprocity Timer costs $1.99 up front. Reciprocity Timer sells 1 one-off in-app purchase and Darkroom Assistant sells 1 in-app purchase, starting at $39.99 per year. Whichever you choose, the download price is not the number that matters.

Reciprocity Timer ships an update every 2 months, Darkroom Assistant every 4 days. The most recent releases landed on September 30, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Reciprocity Timer | Darkroom Assistant |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.5 (4 ratings)](https://appshunter.io/ios/app/reciprocity-timer/id459691262/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#162** | — |
| Size | 28 MB | 54 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pump Interactive](https://appshunter.io/developer/459691265) | [Distinction Photo LLC](https://appshunter.io/developer/1868141640) |

## What reviewers say

### Reciprocity Timer

[App page](https://appshunter.io/ios/app/reciprocity-timer/id459691262)

**Currently charting:** #162 Top Paid · Photo & Video (US App Store)

This app helps film photographers calculate exposure compensation for reciprocity failure. It offers a standard version for basic calculations and a pro version with advanced features like note-taking and custom film databases. It also includes an exposure timer and filter compensation tools.

**Highlights:** Reciprocity compensation calculations, Exposure timer, Filter compensation slider, Note-keeping feature, Custom film and camera databases, Film stock favorites

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reciprocity Timer Pro | $9.99 | one-time |


### Darkroom Assistant

[App page](https://appshunter.io/ios/app/darkroom-assistant/id6757661002)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Darkroom Assistant Standard | $39.99 | per year |


## Frequently asked questions

### Is Reciprocity Timer free?

Reciprocity Timer costs $1.99, and also offers in-app purchases.

### Is Darkroom Assistant free?

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

### Do Reciprocity Timer or Darkroom Assistant have ads?

Neither Reciprocity Timer nor Darkroom Assistant shows ads.

### Which is updated more often, Reciprocity Timer or Darkroom Assistant?

Reciprocity Timer ships an update every 2 months, and Darkroom Assistant every 4 days. Most recently, Reciprocity Timer was updated on September 30, 2026 and Darkroom Assistant on September 9, 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.*