# CalcBoard vs Z

The clearest difference is update cadence: Z at every 3 weeks against CalcBoard's every 3 months. CalcBoard's advantage is iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CalcBoard sells 1 one-off in-app purchase and Z sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CalcBoard ships an update every 3 months, Z every 3 weeks. The most recent releases landed on November 5, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | CalcBoard | Z |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calcboard-multi-calculator/id6759535339/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 11 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Colby Clark](https://appshunter.io/developer/1110053823) | [Zoltan Homorodi](https://appshunter.io/developer/1583313543) |

## What reviewers say

### CalcBoard

[App page](https://appshunter.io/ios/app/calcboard-multi-calculator/id6759535339)

Perform multiple calculations simultaneously on one screen, compare prices side-by-side, and access various modes like scientific and programmer. This ad-free utility offers precise results and stores your data locally.

**Highlights:** Multiple independent calculator panels, Side-by-side price comparison, Scientific, programmer, and unit converter modes, Visible expression history, Shared value tray for chaining calculations, Named variables for complex formulas, Ad-free and no tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcBoard Premium | $2.99 | one-time |


### Z

[App page](https://appshunter.io/ios/app/z-calc/id6808435910)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fraction Unlock | $0.99 | one-time |
| Units Unlock | $0.99 | one-time |
| Graph Unlock | $0.99 | one-time |
| Quadratic Solver Unlock | $0.99 | one-time |


## Frequently asked questions

### Is CalcBoard free?

CalcBoard is free to download, with in-app purchases available.

### Is Z free?

Z is free to download, with in-app purchases available.

### Do CalcBoard or Z have ads?

Neither CalcBoard nor Z shows ads.

### Which is updated more often, CalcBoard or Z?

CalcBoard ships an update every 3 months, and Z every 3 weeks. Most recently, CalcBoard was updated on November 5, 2026 and Z on October 29, 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.*