# A4Calc vs KubeGrip

The clearest difference is price: KubeGrip at Free against A4Calc's $4.99. KubeGrip also leads on update cadence (every 3 weeks vs every 8 months). A4Calc's advantage is iOS requirement (12.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

KubeGrip is free to download; A4Calc costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

A4Calc ships an update every 8 months, KubeGrip every 3 weeks. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | A4Calc | KubeGrip |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Size | 2 MB | 25 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Farren Domenici](https://appshunter.io/developer/583666476) | [骏 胡](https://appshunter.io/developer/1837058154) |

## What reviewers say

### A4Calc

[App page](https://appshunter.io/ios/app/a4calc/id734140182)

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

**In-app purchases:** none


### KubeGrip

[App page](https://appshunter.io/ios/app/kubegrip/id6752113646)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A4Calc free?

A4Calc costs $4.99, with no in-app purchases.

### Is KubeGrip free?

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

### Do A4Calc or KubeGrip have ads?

Neither A4Calc nor KubeGrip shows ads.

### Which is updated more often, A4Calc or KubeGrip?

A4Calc ships an update every 8 months, and KubeGrip every 3 weeks. Most recently, A4Calc was updated on September 30, 2026 and KubeGrip on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*