# ISO8583 Bitmap Calculator vs WebA11Y

The clearest difference is rating: ISO8583 Bitmap Calculator at 4.5 against WebA11Y's 3.0. WebA11Y's advantage is update cadence (every 2 months vs every 32 months) and device support (5 vs 2). On price, ratings volume, 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.

ISO8583 Bitmap Calculator holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

ISO8583 Bitmap Calculator ships an update every 32 months, WebA11Y every 2 months. The most recent releases landed on September 28, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | ISO8583 Bitmap Calculator | WebA11Y |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/iso8583-bitmap-calculator/id607389533/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/weba11y/id6445839110/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 4 MB | 16 MB |
| Requires iOS | **15.0** | 15.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Dario Fanjul](https://appshunter.io/developer/607389536) | [Cizzuk Shihu](https://appshunter.io/developer/1674098361) |

## 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


### WebA11Y

[App page](https://appshunter.io/ios/app/weba11y/id6445839110)

Enhance web accessibility with this Safari extension. It allows you to customize text appearance, underline interactive elements, reduce distracting animations, and apply custom fonts and CSS for a more comfortable browsing experience.

**Highlights:** Boldens all text, Underlines links and buttons, Reduces animations and transitions, Applies custom fonts, Inserts custom CSS

**Features:** Safari Extension

**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 WebA11Y free?

WebA11Y is free to download, with no in-app purchases.

### Which has better reviews, ISO8583 Bitmap Calculator or WebA11Y?

ISO8583 Bitmap Calculator is rated higher. ISO8583 Bitmap Calculator averages 4.5 out of 5 from 2 ratings, while WebA11Y averages 3.0 from 2 ratings.

### Do ISO8583 Bitmap Calculator or WebA11Y have ads?

Neither ISO8583 Bitmap Calculator nor WebA11Y shows ads.

### Which is updated more often, ISO8583 Bitmap Calculator or WebA11Y?

ISO8583 Bitmap Calculator ships an update every 32 months, and WebA11Y every 2 months. Most recently, ISO8583 Bitmap Calculator was updated on September 28, 2026 and WebA11Y on September 16, 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.*