Comparison

Engineering Survey Calculator vs my16c

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

Head to head
About

Engineering Survey Calculator

This app provides 33 essential calculators for surveying, measurement, and civil engineering tasks. It supports both Imperial (USCS) and Metric (SI) units, making it a versatile tool for engineers and surveyors on iOS devices.

Highlights
  • 33 specialized calculators
  • Surveying and measurement tools
  • Civil engineering parameters
  • Imperial (USCS) and Metric (SI) units
  • Available for iPhone and iPad
Features
Read full description

The field companion for surveyors and civil engineers — 42 calculators, reference tables, and field tools in USCS and SI units. Engineering Survey Calculator covers the everyday math of land surveying, from tape corrections to vertical curves, with instant results, clearly stated formulas, and one-tap unit switching. CALCULATORS — grouped the way you work • Errors & Precision: standard deviation, probable errors, error of the mean, full observation sets • Taping Corrections: temperature, tension, sag, slope — individually or chained into one corrected length • Leveling: curvature & refraction, reciprocal leveling, relative accuracy orders • Traverse: latitudes & departures, misclosure, precision ratio, Bowditch adjustment, area by coordinates • Curves: horizontal circular curves (T, L, C, M, E, D) and parabolic vertical curves with high/low point • Stadia & Tacheometry, Earthwork volumes, Photogrammetry scales, and angle converters (DMS ⇄ decimal, azimuth ⇄ bearing) AUTO-FILL REFERENCE DATA Tap the magic wand to fill tape constants, instrument constants, camera focal lengths, and accuracy coefficients from built-in reference tables — no more hunting through handbooks. A dedicated Reference tab keeps all tables one tap away, in your chosen unit system. FIELD TOOLS • GPS field points: capture coordinates and elevation, then get distance and elevation difference between points • Clinometer: measure slope angles with your device's sensors • DMS quick-entry keyboard for angle inputs SAVE, ORGANIZE, SHARE Save any calculation to a project, attach field notes and photos, share results, and export a whole project as a PDF report. BUILT FOR THE FIELD • USCS and SI units everywhere, one tap apart • Formulas shown with every result • Favorites and search • Dark mode, iPhone and iPad (side-by-side split view) • Works fully offline • Available in English, German, Spanish, French, Italian, Dutch, Portuguese, and Chinese (Simplified) Questions or suggestions? contact.pugal.apps@gmail.com

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
Read full description

The programmer's calculator that defined an era — 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 — faithfully reproduced. WHY PROGRAMMERS LOVE THE 16C The 16C wasn't just a calculator — 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 • Cycle-accurate emulation — runs the original Voyager microcode, not a simulation • Full base conversion — HEX, DEC, OCT, and BIN at the press of a key • Bit operations — shifts, rotates, AND, OR, XOR, NOT, 1's and 2's complement • RPN entry — the efficient Reverse Polish Notation stack system • Programmable — write, store, and run programs just like the original • Authentic 7-segment LCD display with all original annunciators • Word size control (WSIZE) — work with 8, 16, 32, or 64-bit integers • Floating point mode for standard calculations • Unsigned and signed arithmetic modes 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 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 — no subscriptions. Whether you're a software engineer debugging hex values, a retro computing enthusiast, or someone who remembers the original on their desk — my16C is the most authentic way to use the legendary 16C today.

Screenshots

Engineering Survey Calculator4 screens
my16c3 screens

Verdict

The call

The clearest difference is price: my16c at Free against Engineering Survey Calculator's $2.99. my16c also leads on update cadence (fortnightly vs every 24 months). Engineering Survey Calculator's advantage is in-app purchases (none vs 1) and iOS requirement (16.0 vs 26.0). On review sentiment, 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

my16c is free to download; Engineering Survey Calculator costs $2.99 up front. my16c sells 1 one-off in-app purchase. Engineering Survey Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Engineering Survey Calculator ships an update every 24 months, my16c fortnightly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Engineering Survey Calculator versus my16c: the parameters behind the verdict, then further details
ParameterEngineering Survey Calculatormy16c
Price$2.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 24 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.0 — better26.0
Further details — not scored
Size6 MB9 MB
Age rating4+4+
DeveloperV PUGAZHENTHIMiroslav Perovic

Customer experience

Engineering Survey Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

my16c

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

Engineering Survey Calculator

No in-app purchases

1 purchases

my16c

One-time1
  • Unlock Full App$9.99

Questions

Is Engineering Survey Calculator free?
Engineering Survey Calculator costs $2.99, with no in-app purchases.
Is my16c free?
my16c is free to download, with in-app purchases available.
Do Engineering Survey Calculator or my16c have ads?
Neither Engineering Survey Calculator nor my16c shows ads.
Which is updated more often, Engineering Survey Calculator or my16c?
Engineering Survey Calculator ships an update every 24 months, and my16c fortnightly. Most recently, Engineering Survey Calculator was updated on November 4, 2026 and my16c on October 31, 2026.

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