Comparison

Pentatronics 1000 vs my11c

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

Head to head
About

Pentatronics 1000

Experience a faithful re-creation of a legendary gaming calculator from a bygone era. This app brings back the iconic "READY" message and the novelty of having a game on a calculator, blending math with fun, style, and humor.

Highlights
  • Faithful re-creation of a legendary gaming calculator
  • Iconic "READY" message
  • Calculator with built-in games
  • Emphasis on fun, style, and humor
  • Brings a rare collectible to mobile
Features
Read full description

Pentatronics 1000 is a faithful re-creation of the legendary gaming calculator, one of the most exciting calculators of its era. Pentatronics 1000 introduced many novelties such as the iconic "READY" message that has been adopted by virtually every calculator ever since. Today we take for granted that a calculator should have at least one game, but this was again an innovation brought by Pentatronics. Pentatronics creators believed that life shouldn't be just about math and logic. Fun, style, and humor were every bit as important. Unfortunately, today these calculators are impossible to find except in the hands of a few lucky collectors. We are honored to bring this rare calculator to your mobile device. We would like to thank all the people who helped us during the development of this app, especially Edwin J. Gallaghan from the original Pentatronics 1000 development team. Without Edwin's expertise and warm encouragement, we couldn't have completed this project. For feedback, contact us at pentatronics1000@gmail.com.

About

my11c

Read full description

The scientific calculator that defined an era — now in your pocket. my11C brings the legendary 11C Voyager series scientific calculator back to life with cycle-accurate emulation running the original microcode. Every keystroke, every display flicker, every RPN operation — faithfully reproduced. WHY ENGINEERS LOVED THE 11C The 11C wasn't just a calculator — it was the trusted companion of engineers, scientists, and students throughout the 1980s. Its blend of powerful scientific functions, full programmability, and the legendary efficiency of RPN made it a desk-and-pocket classic. Decades later, it remains a benchmark of how a calculator should feel. FEATURES - Cycle-accurate emulation — runs the original Voyager microcode, not a simulation - Full RPN entry — the efficient Reverse Polish Notation 4-level stack - Programmable — write, store, edit, and run programs just like the original (up to 203 lines) - Complete scientific function set — trigonometric and inverse trig in DEG, RAD, and GRAD - Logarithms and exponentials — LN, LOG, e^x, 10^x - Powers, roots, reciprocals, factorial, and percentages - Statistics — mean, standard deviation, and linear regression - Permutations and combinations - Random number generator - Rectangular to polar coordinate conversion - Hours-minutes-seconds conversions - Display formatting — FIX, SCI, and ENG notation - Conditional tests and flags for real programming - Authentic 7-segment LCD display with all original annunciators BUILT FOR TODAY - iCloud sync — your calculator state follows you across devices - Native on iPhone and Mac — landscape optimized on iOS, resizable window on macOS - Full keyboard support on Mac — type numbers and operators directly - Dark interface faithful to the original Voyager design - Built-in Owner's Manual for quick reference

Screenshots

Pentatronics 10002 screens
my11c4 screens

Verdict

The call

The clearest difference is in-app purchases: Pentatronics 1000 at none against my11c's 1. Pentatronics 1000 also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (13.3 vs 26.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. my11c sells 1 one-off in-app purchase. Pentatronics 1000 asks for nothing beyond the download.

UpkeepUpdate frequency

Pentatronics 1000 ships an update fortnightly, my11c every 2 months. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Pentatronics 1000 versus my11c: the parameters behind the verdict, then further details
ParameterPentatronics 1000my11c
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.3 — better26.0
Further details — not scored
Size1 MB8 MB
Age rating4+4+
DeveloperPaul NovaesMiroslav Perovic

In-app purchases

None

Pentatronics 1000

No in-app purchases

1 purchases

my11c

One-time1
  • Unlock Full App$9.99

Questions

Is Pentatronics 1000 free?
Pentatronics 1000 is free to download, with no in-app purchases.
Is my11c free?
my11c is free to download, with in-app purchases available.
Do Pentatronics 1000 or my11c have ads?
Neither Pentatronics 1000 nor my11c shows ads.
Which is updated more often, Pentatronics 1000 or my11c?
Pentatronics 1000 ships an update fortnightly, and my11c every 2 months. Most recently, Pentatronics 1000 was updated on October 20, 2026 and my11c on October 12, 2026.

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