Simple Hex Calc vs Custom Alarm Clock & Timer
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. :-)
Custom Alarm Clock & Timer
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Custom Alarm Clock is a flexible alarm app built around powerful repeat patterns. Set a basic alarm in seconds, or create schedules for shift work, holidays, month-end tasks, and more. Preview upcoming alarm dates before saving. SET FLEXIBLE RECURRING ALARMS • Repeat every day • Repeat every week on selected weekdays • Repeat every few weeks and choose which weekdays ring • Repeat every few days, with the option to ring on consecutive days at the start of each cycle • Repeat on a rotating shift cycle, with a separate time for each alarm day • Repeat on workdays or days off, with optional weekday filters • Ring on a fixed date or a date counted back from the end of each month • Ring on the nth or last selected weekday of each month • Ring on the nth or nth-to-last workday of each month, based on the selected holiday calendar • Ring on the same date every year • Skip weekends or exclude days off based on the selected holiday calendar • Add extra alarm dates or skip individual dates • Set a start date, then choose no end date, a specific end date, or a fixed number of alarms WAKE-UP CHALLENGES TO GET YOU GOING In addition to tapping a button or swiping to dismiss, choose from several wake-up challenges: • Solve a math problem • Type a specified phrase • Walk a set number of steps • Scan a QR code WAKE UP YOUR WAY • Customize your alarm sounds • Snooze when you need it MORE EVERYDAY TIMING TOOLS • Timer • Stopwatch From regular weekly routines to complex shift schedules, Custom Alarm Clock keeps up with the way you live and work.
Screenshots
Verdict
The clearest difference is price: Custom Alarm Clock & Timer at Free against Simple Hex Calc's $0.99. Custom Alarm Clock & Timer also leads on update cadence (every 3 days vs every 5 months) and iOS requirement (17.0 vs 27.0). Simple Hex Calc's advantage is ads (none vs shown). On 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
Custom Alarm Clock & Timer is free to download; Simple Hex Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Simple Hex Calc ships an update every 5 months, Custom Alarm Clock & Timer every 3 days. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.
| Parameter | Simple Hex Calc | Custom Alarm Clock & Timer |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.5 (8 ratings) — better | — |
| Positive reviews | 94.4% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 5 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 27.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroki Ishiura | 月娇 章 |
In-app purchases
Simple Hex Calc
No in-app purchases
Custom Alarm Clock & Timer
No in-app purchases





