# Calc vs DB50X

The clearest difference is review sentiment: DB50X at 100% against Calc's 50%. DB50X also leads on rating (5.0 vs 3.7) and update cadence (every 3 weeks vs every 10 months). Calc's advantage is price (Free vs $9.99) and iOS requirement (12.0 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

Calc is free to download; DB50X costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DB50X holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews point the same way: 50% of Calc's written reviews are positive against 100% of DB50X's.

Calc ships an update every 10 months, DB50X every 3 weeks. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Calc | DB50X |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/calc-50/id1193016704/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/db50x/id6625971367/reviews)** |
| Number of ratings | 3 | **9** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | **Free** | Paid |
| Size | 38 MB | 7 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Smith](https://appshunter.io/developer/1193016703) | [Christophe de Dinechin](https://appshunter.io/developer/1761608161) |

## What reviewers say

### Calc

[App page](https://appshunter.io/ios/app/calc-50/id1193016704)

This app offers a high-precision scientific calculator with over 50 digits of accuracy. It supports advanced mathematical functions, complex arithmetic, and programmable features for derivatives, integrals, and root finding.

**Highlights:** High-precision calculations (50+ digits), Extensive mathematical functions, Programmable features, Complex arithmetic, Graphing capabilities, Derivative and integral calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### DB50X

[App page](https://appshunter.io/ios/app/db50x/id6625971367)

This scientific calculator offers high-precision computations with arbitrary precision for numbers. It supports advanced functions like complex numbers, matrices, symbolic calculations, and graphing, with a user-friendly interface and extensive built-in help.

**Highlights:** Arbitrary precision calculations, RPN and algebraic operations, Complex numbers, vectors, matrices, Symbolic and numerical solving, Graphing and plotting, Engineering units and constants, Unicode text support

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

**In-app purchases:** none


## Frequently asked questions

### Is Calc free?

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

### Is DB50X free?

DB50X costs $9.99, with no in-app purchases.

### Which has better reviews, Calc or DB50X?

DB50X is rated higher. Calc averages 3.7 out of 5 from 3 ratings, while DB50X averages 5.0 from 9 ratings.

### Do Calc or DB50X have ads?

Neither Calc nor DB50X shows ads.

### Which is updated more often, Calc or DB50X?

Calc ships an update every 10 months, and DB50X every 3 weeks. Most recently, Calc was updated on October 26, 2026 and DB50X on October 30, 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.*