# Photo Calc vs Dev Calc

The clearest difference is rating: Photo Calc at 3.5 against Dev Calc's 2.0. Photo Calc also leads on in-app purchases (none vs 1) and ratings volume (8 vs 2). Dev Calc's advantage is update cadence (every 2 months vs every 13 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Dev Calc sells 1 in-app purchase, starting at $1.99 per month. Photo Calc asks for nothing beyond the download.

Photo Calc holds the better App Store score, 3.5 against 2.0. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews point the same way: 61% of Photo Calc's written reviews are positive against 60% of Dev Calc's.

Photo Calc ships an update every 13 months, Dev Calc every 2 months. The most recent releases landed on September 4, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Photo Calc | Dev Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (8 ratings)](https://appshunter.io/ios/app/photo-calc-simple-calculator/id1130778812/reviews)** | [2.0 (2 ratings)](https://appshunter.io/ios/app/dev-calc-developer-calculator/id1576503219/reviews) |
| Number of ratings | **8** | 2 |
| Positive reviews | **61.0% of reviews** | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 9 MB | 51 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kazuhiko sugimoto](https://appshunter.io/developer/1089152635) | [Toshiya Hondo](https://appshunter.io/developer/1571875732) |

## What reviewers say

### Photo Calc

[App page](https://appshunter.io/ios/app/photo-calc-simple-calculator/id1130778812)

A straightforward and visually customizable calculator app. It offers essential functions like percentage calculation, a dedicated '00' key, and a backspace feature for easy corrections. Users can personalize the look by changing the background image and applying a frosted glass effect.

**Highlights:** Change background image, Frosted glass effect, Percentage calculation, 00 input key, Up to 12 digits calculation, Backspace functionality

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

**In-app purchases:** none


### Dev Calc

[App page](https://appshunter.io/ios/app/dev-calc-developer-calculator/id1576503219)

This app assists developers and programmers with immediate numeric conversions between binary, octal, decimal, and hexadecimal formats. It also provides tools for generating color codes from RGB, HSL, and HSV values, with a color picker and preset options.

**Highlights:** Numeric conversion (Bin, Oct, Dec, Hex), Signed/Unsigned options, Adjustable bit sizes (8, 16, 32, 64), RGB, HSL, HSV color code generation, Color picker, Preset color options

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads (Monthly) | $1.99 | per month |


## Frequently asked questions

### Is Photo Calc free?

Photo Calc is free to download, with no in-app purchases.

### Is Dev Calc free?

Dev Calc is free to download, with in-app purchases available.

### Which has better reviews, Photo Calc or Dev Calc?

Photo Calc is rated higher. Photo Calc averages 3.5 out of 5 from 8 ratings, while Dev Calc averages 2.0 from 2 ratings.

### Do Photo Calc or Dev Calc have ads?

Both Photo Calc and Dev Calc show ads.

### Which is updated more often, Photo Calc or Dev Calc?

Photo Calc ships an update every 13 months, and Dev Calc every 2 months. Most recently, Photo Calc was updated on September 4, 2026 and Dev Calc on June 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.*