CALC 1 Programmable Calculator vs Dreadnought Tachymeter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CALC 1 Programmable Calculator
Create custom calculators with AI-generated JavaScript functions for precise calculations and data visualization. Assign programs to keys and manage data efficiently. Offers multiple calculation modes and extensive documentation.
- AI-assisted JavaScript function creation
- Customizable function calculators
- Data visualization and plotting
- Programmable calculator keys
- List and data management
- Multiple calculation modes (algebraic, RPN)
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Customize your calculators for quick and accurate calculations with CALC 1 - the ultimate programmable calculator for your iPhone or iPad. * Harness the power of AI: Ask your favorite AI tool to create JavaScript functions for you * Effortlessly create Function Calculators: Simply copy the AI-generated function code to your clipboard and tap the add button in the "Function Calculators" list - CALC 1 will automatically create a new Function Calculator (Always test the Function Calculator to verify the function is as you intended) * Execute functions with ease: Key in the parameter values to run the function and get instant results * Perform breakeven analysis: Function Calculators can solve for any non-integer parameter * Visualize data effortlessly: Create plots as a function of any parameter by entering the min and max values * Assign programs to individual calculator keys for personalized functionality * Create custom calculators by copying and pasting keys from pre-built calculators * Automatically generate keys from entered expressions for effortless reuse * CALC 1 has over 100 built-in functions that you can use from your JavaScript code * Manage lists and data with the List Manager and Data Manager for quick and accurate importing * Choose between algebraic, chain, or RPN calculation modes with an automatic stack * Access the CALC 1 documentation site with over 100 pages of searchable content and video tutorials, easily accessible through help links (?) within the app Whether you're a student, professional, or simply someone who appreciates the power of customization and AI-assisted productivity, CALC 1 offers a consistent and efficient solution to a wide range of problems. Upgrade your calculation experience with CALC 1 today!
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.
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Verdict
The clearest difference is price: Dreadnought Tachymeter at Free against CALC 1 Programmable Calculator's $9.99. Dreadnought Tachymeter also leads on update cadence (every 4 days vs every 5 weeks) and rating (5.0 vs 4.6). CALC 1 Programmable Calculator's advantage is ratings volume (9 vs 3). On review sentiment, ads, in-app purchases 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
Dreadnought Tachymeter is free to download; CALC 1 Programmable Calculator costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Dreadnought Tachymeter holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 9 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
CALC 1 Programmable Calculator ships an update every 5 weeks, Dreadnought Tachymeter every 4 days. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.
| Parameter | CALC 1 Programmable Calculator | Dreadnought Tachymeter |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.6 (9 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 9 — better | 3 |
| Update frequency | Every 5 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | CalcFxC, LLC | AARON L SHURTLEFF |
Customer experience
CALC 1 Programmable Calculator
Dreadnought Tachymeter
In-app purchases
CALC 1 Programmable Calculator
No in-app purchases
Dreadnought Tachymeter
No in-app purchases





