Comparison

RPN vs Read Easier

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RPN

This app is a photo-realistic simulation of the classic HP-25 scientific calculator. It offers advanced programming features, a vast function library, and modern enhancements for enhanced usability on iOS devices.

Highlights
  • Photo-realistic simulation
  • Programmable (99/999 steps)
  • 15 user-defined function keys
  • 100 symbolic labels
  • 100 visible registers
  • Program library with 150+ programs
  • Over 270 functions
Features
Read full description

RPN-25 CE is a photo-realistic simulation of Hewlett-Packard's highly popular scientific calculator HP-25 for the iPhone. Produced from August 1975 through 1978, it was the "Squash" member of the second-generation HP calculators known as the "Woodstock" series. It was also the first programmable calculator costing less than $200. RPN-25 CE simulates the HP-25C version released in July 1976. Its major improvement in that update was "Continuous Memory". While the simulator works just like the original calculator, a number of carefully designed extensions make it massively more powerful. Features: • Photo-realistic look • Programmable (99 or 999 steps), subroutines, conditional loops, branching • Insert and delete steps with automatic address correction • 15 user-defined function keys of up to 6 characters each, redefinable under program control • Programmable text messages • Program Auto-Start option upon loading • 100 symbolic labels • 100 visible registers, "non-volatile", with unrestricted store/recall arithmetic • 100 flags, visible at a glance • Single-step constants • Program comments • Program library with more than 150 programs pre-installed • More than 270 functions and operations not available on the HP-25 • 100 sounds built-in • Much faster than the original • "Live" register view supporting user interaction (run/stop, single-stepping) • "Live" stack view • Thousands separator (optional) • High-contrast display (optional) • Selectable pause length (up to a day) • Program listing view with program title and description • Program library view • Store, name and retrieve any number of programs • Sharing: Files, iCloud Drive, e-mail, AirDrop, Dropbox, copy, paste, print • Import and run RPN-32 CE and GO-25 programs • Run a large number of HP-41 programs with little or no changes • Clock display (AM/PM or 24h) • Supports Dark Mode Calculator functions: • Statistics, including clearing statistics registers only • Factorial for arbitrary arguments • Trigonometric functions (degrees, radians, grads) • Polar/rectangular conversions • Inverse, square root, logarithm, exponential, Pi • Percentage • Storage arithmetic (store and recall) • Extended stack operations • Low-battery warning • Sound alerts • ..and many, many more Details: cuveesoft.ch/rpn25

About

Read Easier

This Safari extension enhances web content readability by integrating the Atkinson Hyperlegible font and offering custom zoom. It allows for one-click activation, preserves website layouts, and is optimized for performance and privacy. Designed to reduce eye strain and improve focus for all users.

Highlights
  • Atkinson Hyperlegible font integration
  • Customizable text zoom
  • One-click activation/deactivation
  • Preserves website layout and elements
  • Privacy-focused, no data collection
  • Optimized for performance
Features
Read full description

Transform your web browsing experience with Read Easier, the ultimate Safari Extension designed to make online content more accessible and enjoyable to read. # Key Features: 1. Atkinson Hyperlegible Font Integration: • Replace default web fonts with the cutting-edge Atkinson Hyperlegible font • Developed by Braille Institute, optimized for maximum legibility • Ideal for users with low vision, dyslexia, or anyone who values clarity 2. Custom Zoom Functionality: • Easily adjust text size to your preference • Set a default zoom level for all websites 3. One-Click Activation: • Toggle the extension on/off with a single click • Seamlessly switch between original and enhanced page views 4. Smart Preservation: • Maintains website layouts and responsiveness • Retains images, videos, and interactive elements 5. Performance Optimized: • Lightweight extension with minimal impact on browsing speed • Works efficiently across various website designs # Benefits: • Improved Readability: Experience clearer, more distinct letters and numbers • Reduced Eye Strain: Enjoy comfortable reading sessions, even during extended use • Enhanced Focus: Minimize distractions with uniform, easy-to-read text • Accessibility Boost: Make the web more inclusive for all users • Customizable Experience: Tailor your browsing to your unique visual needs # Perfect For: • Students spending hours researching online • Professionals who read extensive digital documents • Elderly users navigating the digital world • Anyone who wants a more comfortable reading experience on the web # Privacy Focused: • No data collection or tracking • Works entirely on your device • Your browsing habits remain 100% private Download Read Easier today and revolutionize your web reading experience. Say goodbye to eye strain and hello to crystal-clear content with just one click!

Screenshots

RPN4 screens
Read Easier1 screens

Verdict

The call

The clearest difference is rating: Read Easier at 5.0 against RPN's 4.3. Read Easier also leads on review sentiment (100% vs 80%) and device support (4 vs 2). RPN's advantage is update cadence (every 2 months vs every 15 months) and ratings volume (10 vs 1). On ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

RPN costs $2.99 and Read Easier $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Read Easier holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: RPN has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of RPN's written reviews are positive against 100% of Read Easier's.

UpkeepUpdate frequency

RPN ships an update every 2 months, Read Easier every 15 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard7 real differences · 3 level
RPN versus Read Easier: the parameters behind the verdict, then further details
ParameterRPNRead Easier
Price$2.99$1.99 — better
Rating4.3 (10 ratings)5.0 (1 ratings) — better
Positive reviews80.0% of reviews100.0% of reviews — better
Number of ratings10 — better1
Update frequencyEvery 2 months — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.0 — better15.0
Further details — not scored
Size28 MB5 MB
Age rating4+4+
DeveloperCuVee SoftwarePierre Stanislas

Customer experience

RPN

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Read Easier

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RPN

No in-app purchases

None

Read Easier

No in-app purchases

Questions

Is RPN free?
RPN costs $2.99, with no in-app purchases.
Is Read Easier free?
Read Easier costs $1.99, with no in-app purchases.
Which has better reviews, RPN or Read Easier?
Read Easier is rated higher. RPN averages 4.3 out of 5 from 10 ratings, while Read Easier averages 5.0 from 1 ratings.
Do RPN or Read Easier have ads?
Neither RPN nor Read Easier shows ads.
Which is updated more often, RPN or Read Easier?
RPN ships an update every 2 months, and Read Easier every 15 months. Most recently, RPN was updated on November 3, 2026 and Read Easier on November 4, 2026.

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