# Bolus Calculator vs EOK Challenge

The clearest difference is in-app purchases: EOK Challenge at none against Bolus Calculator's 3. EOK Challenge also leads on update cadence (daily vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Bolus Calculator sells 3 in-app purchases, starting at $3.99 per month. EOK Challenge asks for nothing beyond the download.

Bolus Calculator ships an update every 3 weeks, EOK Challenge daily. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Bolus Calculator | EOK Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bolus-calculator/id1605753491/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 90 MB | 2 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Actnow GmbH](https://appshunter.io/developer/1125946325) | [EOK Essen ohne Kohlenhydrate GmbH](https://appshunter.io/developer/1685194169) |

## What reviewers say

### Bolus Calculator

[App page](https://appshunter.io/ios/app/bolus-calculator/id1605753491)

Easily calculate meal boluses by counting carbs and selecting food items. Save meals as templates and access a database of tens of thousands of products with updated carbohydrate content. Synchronize data across devices for shared management.

**Highlights:** Carbohydrate counting, Meal bolus calculation, Food database with EAN scan, Save meals as templates, Synchronize across devices, Supports CU and BU units

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $3.99 | per month |
| Subscription One Year | $22.99 | per year |
| One time purchase | $39.99 | one-time |


### EOK Challenge

[App page](https://appshunter.io/ios/app/eok-challenge/id6816933269)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bolus Calculator free?

Bolus Calculator is free to download, with in-app purchases available.

### Is EOK Challenge free?

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

### Do Bolus Calculator or EOK Challenge have ads?

Neither Bolus Calculator nor EOK Challenge shows ads.

### Which is updated more often, Bolus Calculator or EOK Challenge?

Bolus Calculator ships an update every 3 weeks, and EOK Challenge daily. Most recently, Bolus Calculator was updated on October 5, 2026 and EOK Challenge on October 9, 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.*