# ISO8583 Bitmap Calculator vs iBIOSYS

The clearest difference is update cadence: iBIOSYS at every 4 months against ISO8583 Bitmap Calculator's every 32 months. iBIOSYS also leads on iOS requirement (12.0 vs 15.0). 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.

ISO8583 Bitmap Calculator ships an update every 32 months, iBIOSYS every 4 months. The most recent releases landed on September 28, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ISO8583 Bitmap Calculator | iBIOSYS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/iso8583-bitmap-calculator/id607389533/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 4 MB | 18 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dario Fanjul](https://appshunter.io/developer/607389536) | [Shenzhen Refresh Biosensing Technology Co., Ltd.](https://appshunter.io/developer/1405391433) |

## What reviewers say

### ISO8583 Bitmap Calculator

[App page](https://appshunter.io/ios/app/iso8583-bitmap-calculator/id607389533)

This utility helps you understand active data elements within ISO8583 messages by visualizing the bitmap. Easily enable or disable fields to see the updated bitmap representation. Supports primary, secondary, and tertiary bitmaps.

**Highlights:** Visualize active data elements, Enable/disable fields, Update bitmap in real-time, Support for primary bitmaps, Support for secondary bitmaps, Support for tertiary bitmaps

**Features:** macOS Compatibility

**In-app purchases:** none


### iBIOSYS

[App page](https://appshunter.io/ios/app/ibiosys/id1580663553)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISO8583 Bitmap Calculator free?

ISO8583 Bitmap Calculator is free to download, with no in-app purchases.

### Is iBIOSYS free?

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

### Do ISO8583 Bitmap Calculator or iBIOSYS have ads?

Neither ISO8583 Bitmap Calculator nor iBIOSYS shows ads.

### Which is updated more often, ISO8583 Bitmap Calculator or iBIOSYS?

ISO8583 Bitmap Calculator ships an update every 32 months, and iBIOSYS every 4 months. Most recently, ISO8583 Bitmap Calculator was updated on September 28, 2026 and iBIOSYS on October 3, 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.*