# Heel App vs 18vier8

Heel App and 18vier8 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 28, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Heel App | 18vier8 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 83 MB | 83 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Biologische Heilmittel Heel GmbH](https://appshunter.io/developer/1442481352) | [Carl Remigius Fresenius Education AG](https://appshunter.io/developer/681675742) |

## What reviewers say

### Heel App

[App page](https://appshunter.io/ios/app/heel-app/id1185653203)

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

**In-app purchases:** none


### 18vier8

[App page](https://appshunter.io/ios/app/18vier8/id6446285075)

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

**In-app purchases:** none


## Frequently asked questions

### Is Heel App free?

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

### Is 18vier8 free?

18vier8 is free to download, with no in-app purchases.

### Do Heel App or 18vier8 have ads?

Neither Heel App nor 18vier8 shows ads.

### Which is updated more often, Heel App or 18vier8?

Heel App ships an update fortnightly, and 18vier8 fortnightly. Most recently, Heel App was updated on September 28, 2026 and 18vier8 on September 19, 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.*