# JCB vs Function

The clearest difference is update cadence: Function at every 3 days against JCB's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

JCB ships an update every 2 months, Function every 3 days. The most recent releases landed on September 15, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | JCB | Function |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 31 MB | 15 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JCB Technology Inc.](https://appshunter.io/developer/1524708156) | [Kolej Technologies, Inc.](https://appshunter.io/developer/1627788805) |

## What reviewers say

### JCB

[App page](https://appshunter.io/ios/app/jcb/id1524707764)

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

**In-app purchases:** none


### Function

[App page](https://appshunter.io/ios/app/function/id6450653686)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JCB free?

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

### Is Function free?

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

### Do JCB or Function have ads?

Neither JCB nor Function shows ads.

### Which is updated more often, JCB or Function?

JCB ships an update every 2 months, and Function every 3 days. Most recently, JCB was updated on September 15, 2026 and Function on September 12, 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.*