MyHoliday PRO vs Plus42
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyHoliday PRO
Easily register holidays and events on your calendar with a color-coded system. Navigate through months with intuitive swipes and switch between event editing and one-tap holiday registration modes. Integrates with your standard iPhone calendar.
- Color-coded holiday registration
- Event editing and adding
- One-tap holiday changes
- Swipe navigation for months
- Customizable week start (Sun/Mon)
- Standard calendar integration
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"MyHoliday" is the calendar to easily register your holiday. And a holiday is expressed on a calendar as a color. Please use along with the standard iPhone calendar. It is possible to switch the start of the week to "Sunday" or "Monday". - The calendar movement by swipe ・Up and down movement of one month ・Left and right movement of three months - Mode switching button (Event mode --- holiday mode) ・Event mode: event edit, add, copy ・Holiday mode: Holiday changed in the one-tap - Simple version of VoiceClock
Plus42
This advanced scientific calculator simulates the classic HP-42S RPN calculator with enhanced features. It offers algebraic expressions, unit conversions, directories for storage, a larger resizable display, financial functions, and 2D plotting with integral and root finding.
- HP-42S RPN calculator simulation
- Algebraic expressions
- Attached units and conversions
- Program and variable directories
- Resizable 8-row, 22-column display
- Time value of money and amortization
- 2D function plotting with zoom and pan
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Plus42 is an advanced scientific programmable calculator, based on Free42. Free42, in turn, is a complete re-implementation of the HP-42S scientific programmable RPN calculator, which was made from 1988 until 1995 by Hewlett-Packard. Free42 is a complete rewrite and contains no HP code whatsoever. Plus42 builds on Free42 and adds: Algebraic expressions modeled after those used on the HP-27S and HP-17B/19B; attached units and unit conversions modeled after those used on the HP-48/49/50 series; directories for more organized storage of programs and variables; a larger display, with 8 rows and 22 columns (131x64 pixels) by default, which the user may resize at will; time value of money and amortization schedules; and two-dimensional plotting of functions, with ability to zoom and pan, and find integrals and roots from points in the plot.
Screenshots
Verdict
The clearest difference is review sentiment: Plus42 at 92% against MyHoliday PRO's 38%. Plus42 also leads on update cadence (weekly vs every 6 weeks). MyHoliday PRO's advantage is price ($0.49 vs $9.99). On ads, in-app purchases, device support and iOS requirement 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
MyHoliday PRO costs $0.49 and Plus42 $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MyHoliday PRO ships an update every 6 weeks, Plus42 weekly. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.
| Parameter | MyHoliday PRO | Plus42 |
|---|---|---|
| Price | $0.49 — better | $9.99 |
| Rating | — | 4.9 (79 ratings) — better |
| Positive reviews | 37.5% of reviews | 92.3% of reviews — better |
| Number of ratings | — | 79 — better |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Shinichi Aokawa | Thomas Okken |
Customer experience
MyHoliday PRO
Plus42
In-app purchases
MyHoliday PRO
No in-app purchases
Plus42
No in-app purchases
