# CALC 1 Programmable Calculator vs Dreadnought Tachymeter

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.

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.

## The numbers

| Metric | CALC 1 Programmable Calculator | Dreadnought Tachymeter |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.6 (9 ratings)](https://appshunter.io/ios/app/calc-1-programmable-calculator/id1455298951/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/dreadnought-tachymeter/id6759676313/reviews)** |
| Number of ratings | **9** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Paid | **Free** |
| Size | 8 MB | 2 MB |
| Requires iOS | 16.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CalcFxC, LLC](https://appshunter.io/developer/395979596) | [AARON L SHURTLEFF](https://appshunter.io/developer/1880141065) |

## What reviewers say

### CALC 1 Programmable Calculator

[App page](https://appshunter.io/ios/app/calc-1-programmable-calculator/id1455298951)

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.

**Highlights:** AI-assisted JavaScript function creation, Customizable function calculators, Data visualization and plotting, Programmable calculator keys, List and data management, Multiple calculation modes (algebraic, RPN)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Dreadnought Tachymeter

[App page](https://appshunter.io/ios/app/dreadnought-tachymeter/id6759676313)

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

**In-app purchases:** none


## Frequently asked questions

### Is CALC 1 Programmable Calculator free?

CALC 1 Programmable Calculator costs $9.99, with no in-app purchases.

### Is Dreadnought Tachymeter free?

Dreadnought Tachymeter is free to download, with no in-app purchases.

### Which has better reviews, CALC 1 Programmable Calculator or Dreadnought Tachymeter?

Dreadnought Tachymeter is rated higher. CALC 1 Programmable Calculator averages 4.6 out of 5 from 9 ratings, while Dreadnought Tachymeter averages 5.0 from 3 ratings.

### Do CALC 1 Programmable Calculator or Dreadnought Tachymeter have ads?

Neither CALC 1 Programmable Calculator nor Dreadnought Tachymeter shows ads.

### Which is updated more often, CALC 1 Programmable Calculator or Dreadnought Tachymeter?

CALC 1 Programmable Calculator ships an update every 5 weeks, and Dreadnought Tachymeter every 4 days. Most recently, CALC 1 Programmable Calculator was updated on September 9, 2026 and Dreadnought Tachymeter on June 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*