# BLTHZRD — Combined impairment rates

> Combined impairment rates (iPhone/iPad app by Kaan Gunduz.)

- Source: https://appshunter.io/ios/app/blthzrd/id738709018 (this page in markdown: same URL + `.md`)
- Developer: [Kaan Gunduz](https://appshunter.io/developer/602353859)
- Category: Medical
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, French (France), German (Germany), Italian, European Spanish, Turkish
- Released: 2013-11-14
- Data updated: 2026-09-26
- User reviews in markdown: https://appshunter.io/ios/app/blthzrd/id738709018/reviews.md

## What is BLTHZRD?

Balthazard's formula, worked out for you.

Several impairments do not add up. Each one applies to what the ones before it left whole, so two rates of 25.5% and 12% combine to 34.44%, not 37.5%. The total climbs toward 100% and never passes it.

Add as many rates as you need. Set each one on a wheel — no keyboard, no decimal separator to get wrong, nothing outside 0 to 100 to type by mistake. The combined rate updates as you go, and you can open the working to see the running total after each rate.

Free, with no accounts, no adverts and no data collection. It does one calculation and does it properly.

Available in English, Turkish, German, French, Spanish and Italian.


## Version history (last 2 releases)

### 2.0 — 2026-09-04

Rebuilt from the ground up.

- Wheels instead of typing: no keyboard, and no way to enter an invalid rate
- As many rates as you need, not a fixed five
- The working shown step by step, so the answer is explainable
- Six languages, with the result written the way your region writes it
- A result rounded to two decimals rather than six meaningless ones
- Designed for today's iPhone and iPad

### 1.0.1 — 2013-11-14

No release notes.

## Apps similar to BLTHZRD

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Glokopedi](https://appshunter.io/ios/app/glokopedi/id1435917865) | — | Free | Medical |
| [TODNET Plus](https://appshunter.io/ios/app/todnet-plus/id1382256479) | — | Free | Medical |
| [TOD National 2024](https://appshunter.io/ios/app/tod-national-2024/id6723904225) | — | Free | Medical |

## More apps by Kaan Gunduz

- [iBalthazard](https://appshunter.io/ios/app/ibalthazard/id662504758)
- [ORDR](https://appshunter.io/ios/app/ordr/id6806768262)

All apps by Kaan Gunduz: https://appshunter.io/developer/602353859

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-26.*