# JBT PRoLOG vs JBT (acdcf5)

The clearest difference is iOS requirement: JBT PRoLOG at 11.0 against JBT (acdcf5)'s 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | JBT PRoLOG | JBT (acdcf5) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 33 MB | 36 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESYS Gesellschaft fuer Elektronische Systemtechnik . Hard- und Software mbH](https://appshunter.io/developer/917295043) | [Hector Arturo Hernandez Perez](https://appshunter.io/developer/1820781983) |

## What reviewers say

### JBT PRoLOG

[App page](https://appshunter.io/ios/app/jbt-prolog/id1401983412)

**Features:** macOS Compatibility

**In-app purchases:** none


### JBT (acdcf5)

[App page](https://appshunter.io/ios/app/jbt-acdcf5/id6751475150)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JBT PRoLOG free?

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

### Is JBT (acdcf5) free?

JBT (acdcf5) is free to download, with no in-app purchases.

### Do JBT PRoLOG or JBT (acdcf5) have ads?

Neither JBT PRoLOG nor JBT (acdcf5) shows ads.

### Which is updated more often, JBT PRoLOG or JBT (acdcf5)?

JBT PRoLOG ships an update every 3 months, and JBT (acdcf5) every 3 months. Most recently, JBT PRoLOG was updated on October 26, 2026 and JBT (acdcf5) on October 25, 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.*