Comparison

x36 vs Dreadnought Tachymeter

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

Head to head
About

x36

This app offers a powerful scientific and engineering calculator with advanced features like programmability, multiple number bases, and statistical functions. It emulates the functionality of calculators from the 70s and 80s, providing over 100 functions for complex calculations.

Highlights
  • Programmability with 1000 steps
  • Trigonometric functions with selectable units
  • Statistical functions and linear regression
  • Four number bases (Decimal, Hex, Octal, Binary)
  • Metric-English conversions
  • Fraction operations
  • Over 100 functions
Features
Read full description

This calculator is packed with features common to any good scientific and engineering calculator from the 70's and 80's including: Programability. Can store up to 1000 steps. Includes label, jump, loop and subroutine capability. -Common mathematical operations including square roots, powers, reciprocals, and logarithmic functions. -Up to 15 levels of parenthesis. -A full set of trigonometric functions working with user selectable units of degrees, radians, and gradians. Also performs polar-rectangular and degrees-minutes-seconds - decimal degree conversions. -Common physical constants such as the speed of light, gravitational constant and Avogadro's number. -Single and double variable statistical functions including linear regression. 10 memory storage locations. -Metric-English and English metric conversions. -Four number bases (Decimal, Hexadecimal, Octal, and Binary). -Bit logic operations. -Three display modes (floating point, scientific, and engineering) with user adjustable number of digits displayed. -Can perform operations with fractions! Over 100 functions in all! AND NO ADS!

About

Dreadnought Tachymeter

This minimalist stopwatch instantly converts elapsed time into your rate per hour. Track laps, tasks, or any unit of time without manual calculations. Ideal for runners, cyclists, and productivity tracking.

Highlights
  • Instant pace conversion
  • Minimalist design
  • No accounts or setup required
  • Track any unit of time
  • Ideal for running, cycling, and productivity
Read full description

A stopwatch that shows what your time actually means. Dreadnought is a minimalist tachymeter stopwatch that converts elapsed time into pace instantly. Time one unit — a mile, a task, a lap, or a rep — and see your rate per hour without doing any math. How it works • Start timing when a unit begins • Stop when it finishes • Your pace appears instantly Perfect for • Running and cycling pace • Work and productivity timing • Workouts and training • Creative workflows • Everyday timing Designed to stay simple No accounts. No setup. No clutter. Just start, stop, and understand your pace.

Screenshots

x364 screens
Dreadnought Tachymeter4 screens

Verdict

The call

The clearest difference is price: Dreadnought Tachymeter at Free against x36's $0.99. Dreadnought Tachymeter also leads on update cadence (every 4 days vs every 2 months) and ratings volume (3 vs 1). x36's advantage is iOS requirement (12.0 vs 15.0). On rating, review sentiment, ads and in-app purchases 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

Dreadnought Tachymeter is free to download; x36 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for x36 against 5.0 for Dreadnought Tachymeter. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

x36 ships an update every 2 months, Dreadnought Tachymeter every 4 days. The most recent releases landed on September 22, 2026 and June 1, 2026 respectively.

Scorecard5 real differences · 5 level
x36 versus Dreadnought Tachymeter: the parameters behind the verdict, then further details
Parameterx36Dreadnought Tachymeter
Price$0.99Free — better
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperCarl CookAARON L SHURTLEFF

Customer experience

x36

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

Dreadnought Tachymeter

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

x36

No in-app purchases

None

Dreadnought Tachymeter

No in-app purchases

Questions

Is x36 free?
x36 costs $0.99, with no in-app purchases.
Is Dreadnought Tachymeter free?
Dreadnought Tachymeter is free to download, with no in-app purchases.
Which has better reviews, x36 or Dreadnought Tachymeter?
x36 and Dreadnought Tachymeter are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do x36 or Dreadnought Tachymeter have ads?
Neither x36 nor Dreadnought Tachymeter shows ads.
Which is updated more often, x36 or Dreadnought Tachymeter?
x36 ships an update every 2 months, and Dreadnought Tachymeter every 4 days. Most recently, x36 was updated on September 22, 2026 and Dreadnought Tachymeter on June 1, 2026.

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