# Dev Calc vs SynapX

The clearest difference is ads: SynapX at none against Dev Calc's shown. SynapX also leads on update cadence (every 4 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Dev Calc sells 1 in-app purchase, starting at $1.99 per month and SynapX sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Dev Calc ships an update every 2 months, SynapX every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Dev Calc | SynapX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/dev-calc-developer-calculator/id1576503219/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 30 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 9+ |
| Developer | [Toshiya Hondo](https://appshunter.io/developer/1571875732) | [YASIN OZALP](https://appshunter.io/developer/1879332111) |

## What reviewers say

### 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 |


### SynapX

[App page](https://appshunter.io/ios/app/synapx/id6772575697)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SynapX Premium Monthly | $9.99 | per month |
| SynapX Pro Yearly | $79.99 | per year |


## Frequently asked questions

### Is Dev Calc free?

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

### Is SynapX free?

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

### Do Dev Calc or SynapX have ads?

Dev Calc shows ads; SynapX does not.

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

Dev Calc ships an update every 2 months, and SynapX every 4 days. Most recently, Dev Calc was updated on October 24, 2026 and SynapX on October 24, 2026.

---

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