# Unit Converter ∞ vs CALC 1 Programmable Calculator

The clearest difference is price: Unit Converter ∞ at $2.99 against CALC 1 Programmable Calculator's $9.99. Unit Converter ∞ also leads on ratings volume (244 vs 9) and iOS requirement (8.0 vs 16.1). CALC 1 Programmable Calculator's advantage is update cadence (every 5 weeks vs every 9 months) and review sentiment (100% vs 76%). On rating, ads, in-app purchases and device support there is nothing between them.

Unit Converter ∞ costs $2.99 and CALC 1 Programmable Calculator $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CALC 1 Programmable Calculator holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Unit Converter ∞ has 244 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 76% of Unit Converter ∞'s written reviews are positive against 100% of CALC 1 Programmable Calculator's.

Unit Converter ∞ ships an update every 9 months, CALC 1 Programmable Calculator every 5 weeks. The most recent releases landed on October 19, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Unit Converter ∞ | CALC 1 Programmable Calculator |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Rating | [4.4 (244 ratings)](https://appshunter.io/ios/app/unit-converter/id539102182/reviews) | **[4.6 (9 ratings)](https://appshunter.io/ios/app/calc-1-programmable-calculator/id1455298951/reviews)** |
| Number of ratings | **244** | 9 |
| Positive reviews | 75.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Monetization | **Free** | Paid |
| Size | 19 MB | 8 MB |
| Requires iOS | **8.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Incpt.Mobis](https://appshunter.io/developer/445261166) | [CalcFxC, LLC](https://appshunter.io/developer/395979596) |

## What reviewers say

### Unit Converter ∞

[App page](https://appshunter.io/ios/app/unit-converter/id539102182)

This app offers a comprehensive unit conversion experience with a vast database of over 1000 units across 50 categories. It supports mixed units, custom unit creation, and provides a unique, visually appealing interface for all your conversion needs.

**Highlights:** 50+ Categories & 1000+ Units, Create your own unit, Mixed-unit Support, Currency Exchange, Price Conversion, Widget Support

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Comprehensive unit conversions
- 👍 Visually appealing interface
- 💡 Highly customizable
- 🚀 Powerful and accurate

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 👎 Steep learning curve
- 👎 Confusing or non-intuitive navigation
- 🕰️ Slow performance on older devices

**Reported bugs**

- Incorrect unit conversions for some measurements
- Compatibility issues with newer iOS versions

**Requested features**

- Add support for more currencies
- Improve search and navigation
- Provide a list-based interface option
- Add a number base converter


### 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


## Frequently asked questions

### Is Unit Converter ∞ free?

Unit Converter ∞ costs $2.99, with no in-app purchases.

### Is CALC 1 Programmable Calculator free?

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

### Which has better reviews, Unit Converter ∞ or CALC 1 Programmable Calculator?

CALC 1 Programmable Calculator is rated higher. Unit Converter ∞ averages 4.4 out of 5 from 244 ratings, while CALC 1 Programmable Calculator averages 4.6 from 9 ratings.

### Do Unit Converter ∞ or CALC 1 Programmable Calculator have ads?

Neither Unit Converter ∞ nor CALC 1 Programmable Calculator shows ads.

### Which is updated more often, Unit Converter ∞ or CALC 1 Programmable Calculator?

Unit Converter ∞ ships an update every 9 months, and CALC 1 Programmable Calculator every 5 weeks. Most recently, Unit Converter ∞ was updated on October 19, 2026 and CALC 1 Programmable Calculator on September 27, 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.*