Comparison

Bolus Calculator vs EOK Challenge

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Bolus Calculator

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
Read full description

The Bolus Calculator helps you count the carbohydrates in a meal and convert them into CU or BU – then applies the factor you entered yourself. Every intermediate value stays visible, so you can check each step yourself. No sign-up, no registration: your data stays private. You can sync several devices – perfect for managing your child's meals together as two parents. Scan a food or search by keyword, enter the amount, done – the app knows tens of thousands of products and their carb content, and you can save meals as templates. And you decide for yourself: buy once instead of subscribing. You work in carbohydrate units (CU) or bread units (BU) and with the factor you set yourself for each time of day. The app contributes no values of its own: it counts the carbohydrates and applies your factor to them. Every step of the calculation stays visible. The app displays all values of the calculation, so you can spot errors in the databases or in your own entries yourself. In addition, you can synchronize multiple mobile devices and thus, for example, manage the meals of your child with two parents together. The app does not require any registration. NOTE: No medical advice! Please read this notice carefully before using this app. Our app does not constitute medical, legal or other professional advice. Our app and its content are not intended to be, and should not be used as, a substitute for professional medical advice, diagnosis or treatment, or as a substitute for advice from medical professionals. Always consult your physician or other qualified health care provider with questions about a medical condition. Never disregard or delay seeking professional medical help based on content you have read or seen in this app. ActNow does not recommend or endorse any specific tests, physicians, health care professionals or experts, professionals or experts in other fields, interviewees, medical hypotheses, medical facilities, medical services, medical products, products and services of any kind, procedures, medications, treatment strategies, advertisers, companies or other entities that may be mentioned in the App and its content, in advertisements or elsewhere. The information and intellectual property available in this app is intended as a general source of information on the topics covered and is not medical advice. NOTE: Auto-Renew Subscription. In our app, you can purchase an auto-renewing subscription through an in-app purchase. If you don't subscribe, you can also buy the app once or use it for free on a limited basis. If a subscription ends, you can continue to use all the meals you have collected up to that point and your history. So you don't lose access to your data when your subscription ends. Restrictions arise when searching for products and creating new meals. Your subscription will be charged to your iTunes account upon confirmation of purchase and will automatically renew (for the selected period) unless auto-renewal is turned off at least 24 hours before the current period expires. The current subscription cannot be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes account settings after purchase. Privacy Policy: https://www.actnow-gmbh.de/apps/bolus-calculator/privacy Terms of Use/EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Translated with www.DeepL.com/Translator (free version)

About

EOK Challenge

Features
Read full description

Die EOK Challenge ist die Begleit-App zum Low-Carb- und Keto-Ernährungsplan von Essen ohne Kohlenhydrate. 28 Tage lang führt dich die App Schritt für Schritt durch deine Challenge – mit täglichen Inhalten von Coach Alex, schnellen Check-ins und einem motivierenden Punktesystem. DEINE TÄGLICHEN CHECK-INS Trage in Sekunden ein, was zählt: Schritteziel, Wasser, Gewicht, Schlaf und Training. Kein kompliziertes Tracking – die App bleibt bewusst schlank. TAGESPUNKTE & MOTIVATION Aus deinen Check-ins und der täglichen Challenge-Einheit entsteht dein Tagespunkte-Score. Sammle Abzeichen, verdiene EOK-Taler und sichere dir am Ende der Challenge deinen Gutschein. 28 TAGE, JEDEN TAG EINE EINHEIT Jeden Tag schaltet sich eine neue Einheit frei: kurzes Video, kompakter Lerninhalt und eine kleine Aufgabe. So bleibst du dran – einen Tag nach dem anderen. DEIN FORTSCHRITT AUF EINEN BLICK Gewichtsverlauf mit Wochenmittel, Trend-Auswertung mit ehrlichem Feedback und eine freiwillige Rangliste mit anderen Teilnehmern. FÜR LOW-CARB UND KETO Wähle deinen Plan-Modus. Im Keto-Modus kannst du zusätzlich täglich deinen Ketonwert festhalten. HINWEIS Die App ist der Begleiter zum EOK-Ernährungsplan aus dem Shop (eokshop.de). Ein Konto wird nach dem Kauf per E-Mail-Einladung erstellt.

Screenshots

Bolus Calculator4 screens
EOK Challenge4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 7 level
Bolus Calculator versus EOK Challenge: the parameters behind the verdict, then further details
ParameterBolus CalculatorEOK Challenge
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size90 MB2 MB
Age rating12+4+
DeveloperActnow GmbHEOK Essen ohne Kohlenhydrate GmbH

In-app purchases

3 purchases

Bolus Calculator

Subscriptions2
  • Monthly subscription7 Days trial$3.991 Month
  • Subscription One Year7 Days trial$22.991 Year
One-time1
  • One time purchase$39.99
None

EOK Challenge

No in-app purchases

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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