x36 vs Dreadnought Tachymeter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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!
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.
- Instant pace conversion
- Minimalist design
- No accounts or setup required
- Track any unit of time
- Ideal for running, cycling, and productivity
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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
Verdict
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
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.
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.
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.
| Parameter | x36 | Dreadnought Tachymeter |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Carl Cook | AARON L SHURTLEFF |
Customer experience
x36
Dreadnought Tachymeter
In-app purchases
x36
No in-app purchases
Dreadnought Tachymeter
No in-app purchases





