Simple Hex Calc vs RMS Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Hex Calc
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.
- 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
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Simple Hex Calc is a simple pocket calculator for IT programmers. Features: * Arithmetic operations. (add, subtract, multiply, divide, modulo) * Logical operations. (not, and, or, xor, '+', '-') * Logical operations. (bit shift/rotate, bit set/clear, flip bit/byte order) * Memory operations. (clear, save, load, swap) * Switch the base 2/8/10/16 number on input. * Switch simple and extended mode by rotating device. * Switch simple and extended mode by swiping the left and right edge of screen. * Calculate the order entered. (2+2*2=8) * Cut, copy or paste the result by a tap. * Configure bit length option. (select 1 - 64 bit) * Configure signed/unsigned option. * Configure to display data format on/off option. * Configure to display data in previous base on/off option. * Configure grouping separator for BIN, OCT and HEX mode. * Configure tap sound on/off option. * Reference manual included. * Integer only. :-)
RMS Calculator
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How should the effective value be calculated? What is the amplitude of the effective value of 100V? In such a case, do you have any experience of calculating the effective value while checking the calculation formula every time? This app can quickly convert the effective value and amplitude of AC waveforms. There are 4 types of conversion units: rms value, average value, amplitude, and Peak to Peak Amplitude. By inputting the amplitude or effective value of the AC waveform and selecting the unit of the input value, the value converted into 4 types of units will be displayed.
Screenshots
Verdict
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 iOS requirement (12.0 vs 27.0). On ads, in-app purchases 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
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.
| Parameter | Simple Hex Calc | RMS Calculator |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 4.5 (8 ratings) — better | — |
| Positive reviews | 94.4% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 5 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 27.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroki Ishiura | Kei Suefuji |
In-app purchases
Simple Hex Calc
No in-app purchases
RMS Calculator
No in-app purchases
Questions
Is Simple Hex Calc free?
Is RMS Calculator free?
Do Simple Hex Calc or RMS Calculator have ads?
Which is updated more often, Simple Hex Calc or RMS Calculator?
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