# KuCalc vs Invoice Maker

The clearest difference is in-app purchases: KuCalc at none against Invoice Maker's 2. KuCalc also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Invoice Maker sells 2 in-app purchases, starting at $29.99 per year. KuCalc asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 20, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | KuCalc | Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 1 MB | 32 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Mineaki Sakatoku](https://appshunter.io/developer/1674976728) | [Manuel Worlitzer](https://appshunter.io/developer/1785527240) |

## What reviewers say

### KuCalc

[App page](https://appshunter.io/ios/app/kucalc/id6445941447)

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

**In-app purchases:** none


### Invoice Maker

[App page](https://appshunter.io/ios/app/invoice-maker-ledgr/id6757974274)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Maker Premium | $29.99 | per year |
| Invoice Maker Premium | $29.99 | per year |


## Frequently asked questions

### Is KuCalc free?

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

### Is Invoice Maker free?

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

### Do KuCalc or Invoice Maker have ads?

Neither KuCalc nor Invoice Maker shows ads.

### Which is updated more often, KuCalc or Invoice Maker?

KuCalc ships an update every 3 months, and Invoice Maker every 3 months. Most recently, KuCalc was updated on September 20, 2026 and Invoice Maker on September 14, 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.*