# Body Surface Area vs Dialysis Fluid Tracker

The clearest difference is in-app purchases: Body Surface Area at none against Dialysis Fluid Tracker's 2. Body Surface Area also leads on iOS requirement (12.1 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Dialysis Fluid Tracker sells 2 in-app purchases, starting at $3.99 per month. Body Surface Area asks for nothing beyond the download.

## The numbers

| Metric | Body Surface Area | Dialysis Fluid Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 11 MB | 41 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hidenori Ishii](https://appshunter.io/developer/1453853542) | [Troy Shepherd](https://appshunter.io/developer/1874344571) |

## What reviewers say

### Body Surface Area

[App page](https://appshunter.io/ios/app/body-surface-area/id1454387363)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dialysis Fluid Tracker

[App page](https://appshunter.io/ios/app/dialysis-fluid-tracker/id6762290533)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Montlhy | $3.99 | per month |
| Yearly | $29.00 | per year |


## Frequently asked questions

### Is Body Surface Area free?

Body Surface Area is free to download, with no in-app purchases.

### Is Dialysis Fluid Tracker free?

Dialysis Fluid Tracker is free to download, with in-app purchases available.

### Do Body Surface Area or Dialysis Fluid Tracker have ads?

Neither Body Surface Area nor Dialysis Fluid Tracker shows ads.

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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.*