ShoppingCalculator byNSDev vs Dev Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShoppingCalculator byNSDev
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This app was created to easily calculate discount items when shopping. You can calculate immediately with fixed value buttons such as 5%, 10%, 20%, 30%, 40%, 50% 60%. Other than that, I made it possible to select from 1% -99% selection screen. You can subtract it from the total amount with the + - buttons on the left and right of the amount. History can be displayed. When you enter a budget, we automatically calculate the balance that can be purchased. Use the AC button to make it all 0s and history is cleared. The C button sets the current item's amount to 0. The BS button deletes the current amount by one digit. The currency is the Japanese yen. Please fill out the request in the review. We will correspond as much as possible.
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 in-app purchases: ShoppingCalculator byNSDev at none against Dev Calc's 1. ShoppingCalculator byNSDev also leads on ads (none vs shown). Dev Calc's advantage is update cadence (every 2 months vs every 39 months) and iOS requirement (13.0 vs 15.6). On price 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. ShoppingCalculator byNSDev asks for nothing beyond the download.
ShoppingCalculator byNSDev ships an update every 39 months, Dev Calc every 2 months. The most recent releases landed on September 21, 2026 and June 4, 2026 respectively.
| Parameter | ShoppingCalculator byNSDev | Dev Calc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.0 (2 ratings) — better |
| Positive reviews | — | 60.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 39 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | NIHON SYSTEM DEVELOPER CORPORATION | Toshiya Hondo |
In-app purchases
ShoppingCalculator byNSDev
No in-app purchases
Dev Calc
- Remove Ads (Monthly)$1.991 Month








