# Kalkulator BASDAI vs RheumHub

The clearest difference is update cadence: RheumHub at fortnightly against Kalkulator BASDAI's every 11 months. Kalkulator BASDAI's advantage is iOS requirement (7.0 vs 12.0). 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.

Kalkulator BASDAI ships an update every 11 months, RheumHub fortnightly. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Kalkulator BASDAI | RheumHub |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 1 MB | 75 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Softwebo Sp. z o. o.](https://appshunter.io/developer/694005404) | [Kuwait Association of Rheumatology (KAR)](https://appshunter.io/developer/1478144214) |

## What reviewers say

### Kalkulator BASDAI

[App page](https://appshunter.io/ios/app/kalkulator-basdai/id932824528)

This app helps measure and evaluate disease activity for Ankylosing Spondylitis using the BASDAI index. It guides users through six questions related to key symptoms of the condition on a 1-10 scale.

**Highlights:** BASDAI index calculation, Evaluates 6 key AS symptoms, 1-10 rating scale, Quick and simple to use, Disease activity tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### RheumHub

[App page](https://appshunter.io/ios/app/rheumhub/id1358113246)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kalkulator BASDAI free?

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

### Is RheumHub free?

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

### Do Kalkulator BASDAI or RheumHub have ads?

Neither Kalkulator BASDAI nor RheumHub shows ads.

### Which is updated more often, Kalkulator BASDAI or RheumHub?

Kalkulator BASDAI ships an update every 11 months, and RheumHub fortnightly. Most recently, Kalkulator BASDAI was updated on November 1, 2026 and RheumHub on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*