Photo Calc vs Dev Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Photo Calc
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.
- Change background image
- Frosted glass effect
- Percentage calculation
- 00 input key
- Up to 12 digits calculation
- Backspace functionality
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This app is a simple and light calculator. It has the following features. · Change background image · Frosted glass effect · Percentage calculation · 00 input · Up to 12 digits calculation · Backspace [Change background image] You can change the background with your favorite photo. [Frosted glass effect] If numbers or symbols are difficult to see, please enable the frosted glass effect. It will be seen like the passcode input screen of iPhone unlock. [Percentage calculation] This app supports to a convenient percentage calculation for calculating the discount price or the tax inclusive price of the consumption tax. It can be calculated by the following calculation formula. · Tax included (ex: 8%) 1980 + 8 % = · Discount (ex: 30% off) 1980 - 30 % = [00 input] This app has a convenient 00 key for continuous input of 0. [Up to 12 digits calculation] This app supports calculations with enough digits for the calculation of everyday life. You can calculate up to 12 digits for integers and up to 10 digits for decimal places. [Backspace] You can delete the last digit. Because backspace is also valid in calculation results, it is convenient to recalculate after deleting fractions.
Dev Calc
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.
- 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
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You can convert numeric to Bin, Oct, Dec, Hex immediately with Signed, Unsigned. ** Introduction ** This is a calculator app to help System Developers and Programmers. Convert numeric to binary, octal, decimal, hex immediately. You can set conversion bit number and signed/unsigned, so you can adjust settings for binary, short, int, long. Also you can get clolor code for system application from RGB and Color Picker. And you can choose preset color simply. ** Overview ** - Convert numeric to binary, octal, decimal, hex immediately. - You can edit each digits for detailed confirmation. - You can get color code from RGB, HSL, HSV and Color Picker. - Using preset color, you can get color code quickly. ** Characteristics ** >> Numeric conversion - You can input numeric in binary, octal, decimal, hex. - You can choose bits size from 8bits, 16bits, 32bits, 64bits. - You can choose signed numeric or unsigned numeric. - you can edit each digits directly. >> Color code - You can see a color code in Hex, RGB, HSL and HSV. - Support alpha channel of color. - You can get a color code from RGB, HSL, HSV adjuster and Color Picker. - You can get a color code just by choosing a preset color. ** Terms of Use ** https://coconutsdevelop.com/en/terms/terms_of_use.html ** Developer website ** https://coconutsdevelop.com/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Photo Calc | Dev Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (8 ratings) — better | 2.0 (2 ratings) |
| Positive reviews | 61.0% of reviews — better | 60.0% of reviews |
| Number of ratings | 8 — better | 2 |
| Update frequency | Every 13 months | Every 2 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | kazuhiko sugimoto | Toshiya Hondo |
Customer experience
Photo Calc
Dev Calc
In-app purchases
Photo Calc
No in-app purchases
Dev Calc
- Remove Ads (Monthly)$1.991 Month








