# Simple Hex Calc vs RMS Calculator

The clearest difference is update cadence: Simple Hex Calc at every 5 months against RMS Calculator's every 15 months. Simple Hex Calc also leads on price ($0.99 vs $1.99). RMS Calculator's advantage is chart position (#193 vs unranked) and iOS requirement (12.0 vs 27.0). On ads, in-app purchases and device support there is nothing between them.

Simple Hex Calc costs $0.99 and RMS Calculator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Simple Hex Calc ships an update every 5 months, RMS Calculator every 15 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Simple Hex Calc | RMS Calculator |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/simple-hex-calc/id335773208/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 94.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 15 months |
| Monetization | Paid | — |
| Best chart rank | — | **#193** |
| Size | 1 MB | 8 MB |
| Requires iOS | 27.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroki Ishiura](https://appshunter.io/developer/335773211) | [Kei Suefuji](https://appshunter.io/developer/1388335881) |

## What reviewers say

### Simple Hex Calc

[App page](https://appshunter.io/ios/app/simple-hex-calc/id335773208)

This utility app provides IT programmers with a pocket calculator for performing arithmetic and logical operations on numbers in various bases. It offers extensive configuration options for bit length, signed/unsigned modes, and data display formats, with a reference manual included.

**Highlights:** Arithmetic and logical operations, Multiple number base support (2/8/10/16), Bit shift, rotate, set, clear, and order operations, Memory operations (save, load, swap), Configurable bit length and signed/unsigned modes, Cut, copy, and paste results, Reference manual included

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

**In-app purchases:** none


### RMS Calculator

[App page](https://appshunter.io/ios/app/rms-calculator/id1511092361)

**Currently charting:** #193 Top Paid · Utilities (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Hex Calc free?

Simple Hex Calc costs $0.99, with no in-app purchases.

### Is RMS Calculator free?

RMS Calculator costs $1.99, with no in-app purchases.

### Do Simple Hex Calc or RMS Calculator have ads?

Neither Simple Hex Calc nor RMS Calculator shows ads.

### Which is updated more often, Simple Hex Calc or RMS Calculator?

Simple Hex Calc ships an update every 5 months, and RMS Calculator every 15 months. Most recently, Simple Hex Calc was updated on October 15, 2026 and RMS Calculator on October 7, 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.*