# Designable Calculator vs iBigCalc

The clearest difference is in-app purchases: iBigCalc at none against Designable Calculator's 1. Designable Calculator's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Designable Calculator sells 1 in-app purchase, starting at $9.99 per year. iBigCalc asks for nothing beyond the download.

Designable Calculator ships an update every 11 days, iBigCalc every 3 weeks. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Designable Calculator | iBigCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Size | 19 MB | 5 MB |
| Requires iOS | **16.0** | 17 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Batbayar Batbaatar](https://appshunter.io/developer/1082290586) | [Manh Phi Nguyen](https://appshunter.io/developer/1461707344) |

## What reviewers say

### Designable Calculator

[App page](https://appshunter.io/ios/app/designable-calculator/id6587561422)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $9.99 | per year |


### iBigCalc

[App page](https://appshunter.io/ios/app/ibigcalc/id6760924865)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Designable Calculator free?

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

### Is iBigCalc free?

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

### Do Designable Calculator or iBigCalc have ads?

iBigCalc shows ads; Designable Calculator does not.

### Which is updated more often, Designable Calculator or iBigCalc?

Designable Calculator ships an update every 11 days, and iBigCalc every 3 weeks. Most recently, Designable Calculator was updated on October 12, 2026 and iBigCalc on October 16, 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.*