# Just A Calc vs ExSciCalc

The clearest difference is price: Just A Calc at Free against ExSciCalc's $1.99. Just A Calc also leads on iOS requirement (12.0 vs 14.0). ExSciCalc's advantage is update cadence (every 3 weeks vs every 38 months). On ads, in-app purchases and device support there is nothing between them.

Just A Calc is free to download; ExSciCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Just A Calc ships an update every 38 months, ExSciCalc every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Just A Calc | ExSciCalc |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/exscicalc/id1625177287/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 10 MB | 1 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tom Doherty](https://appshunter.io/developer/1112286724) | [Dale C Koepp](https://appshunter.io/developer/331525420) |

## What reviewers say

### Just A Calc

[App page](https://appshunter.io/ios/app/just-a-calc/id1112349564)

**Features:** macOS Compatibility

**In-app purchases:** none


### ExSciCalc

[App page](https://appshunter.io/ios/app/exscicalc/id1625177287)

This calculator offers enhanced precision and memory beyond standard devices. It includes advanced functions for statistics, physics, and mathematics, alongside common calculations and unit conversions.

**Highlights:** Extended precision (30+ digits), Extended memory (main + 10 auxiliary), Scroll windows for button access, Statistical calculations, Physical and mathematical constants, Unit conversions, Roots of equations, Special relativity calculations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Just A Calc free?

Just A Calc is free to download, with no in-app purchases.

### Is ExSciCalc free?

ExSciCalc costs $1.99, with no in-app purchases.

### Do Just A Calc or ExSciCalc have ads?

Neither Just A Calc nor ExSciCalc shows ads.

### Which is updated more often, Just A Calc or ExSciCalc?

Just A Calc ships an update every 38 months, and ExSciCalc every 3 weeks. Most recently, Just A Calc was updated on November 2, 2026 and ExSciCalc on November 3, 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.*