Comparison

369Sonic vs my16c

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

Head to head
About

369Sonic

Features
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369Sonic is an application designed for easy and intuitive control of ultrasonic knives and cutters. It allows users to change blade types and customize settings such as cutting frequency. The application also provides useful real-time information, including current performance, temperature, and battery charge status.

About

my16c

This app emulates a legendary programmer's calculator from the 1980s, offering cycle-accurate performance and faithful reproduction of its features. It includes base conversions, bit manipulation, RPN, and programmability, with modern conveniences like iCloud sync and a dark interface.

Highlights
  • Cycle-accurate emulation
  • Full base conversion (HEX, DEC, OCT, BIN)
  • Bit operations
  • RPN entry
  • Programmable
  • Authentic LCD display
  • Word size control
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The programmer's calculator that defined an era โ€” now in your pocket. my16C brings the legendary 16C Voyager series programmer's calculator back to life with cycle-accurate emulation running the original microcode. Every keystroke, every display flicker, every RPN operation โ€” faithfully reproduced. WHY PROGRAMMERS LOVE THE 16C The 16C wasn't just a calculator โ€” it was the essential tool for every serious programmer and computer engineer in the 1980s. Its unique combination of base conversions, bit manipulation, and RPN logic made it indispensable. Decades later, it remains unmatched. FEATURES โ€ข Cycle-accurate emulation โ€” runs the original Voyager microcode, not a simulation โ€ข Full base conversion โ€” HEX, DEC, OCT, and BIN at the press of a key โ€ข Bit operations โ€” shifts, rotates, AND, OR, XOR, NOT, 1's and 2's complement โ€ข RPN entry โ€” the efficient Reverse Polish Notation stack system โ€ข Programmable โ€” write, store, and run programs just like the original โ€ข Authentic 7-segment LCD display with all original annunciators โ€ข Word size control (WSIZE) โ€” work with 8, 16, 32, or 64-bit integers โ€ข Floating point mode for standard calculations โ€ข Unsigned and signed arithmetic modes BUILT FOR TODAY โ€ข iCloud sync โ€” your calculator state follows you across devices โ€ข Native on iPhone and Mac โ€” landscape optimized on iOS, resizable window on macOS โ€ข Full keyboard support on Mac โ€” type numbers and operators directly โ€ข Dark interface faithful to the original Voyager design โ€ข Built-in Owner's Manual for quick reference TRY BEFORE YOU BUY my16C includes a free trial period so you can experience the full calculator before purchasing. A single one-time purchase unlocks the app forever โ€” no subscriptions. Whether you're a software engineer debugging hex values, a retro computing enthusiast, or someone who remembers the original on their desk โ€” my16C is the most authentic way to use the legendary 16C today.

Screenshots

369Sonic4 screens
my16c3 screens

Verdict

The call

The clearest difference is in-app purchases: 369Sonic at none against my16c's 1. 369Sonic also leads on iOS requirement (13.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. my16c sells 1 one-off in-app purchase. 369Sonic asks for nothing beyond the download.

UpkeepUpdate frequency

369Sonic ships an update every 9 days, my16c fortnightly. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

Scorecard2 real differences ยท 6 level
369Sonic versus my16c: the parameters behind the verdict, then further details
Parameter369Sonicmy16c
PriceFreeFree
Positive reviewsโ€”0.0% of reviews
Update frequencyEvery 9 days โ€” betterFortnightly
AdsNoNo
In-app purchasesNo โ€” betterYes
Monetizationโ€”Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Mac โ€” better
Requires iOS13.0 โ€” better26.0
Further details โ€” not scored
Size46 MB9 MB
Age rating4+4+
Developer369sonic s.r.o.Miroslav Perovic

In-app purchases

None

369Sonic

No in-app purchases

1 purchases

my16c

One-time1
  • Unlock Full App$9.99

Questions

Is 369Sonic free?
369Sonic is free to download, with no in-app purchases.
Is my16c free?
my16c is free to download, with in-app purchases available.
Do 369Sonic or my16c have ads?
Neither 369Sonic nor my16c shows ads.
Which is updated more often, 369Sonic or my16c?
369Sonic ships an update every 9 days, and my16c fortnightly. Most recently, 369Sonic was updated on October 15, 2026 and my16c on October 24, 2026.

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