EasyFPU vs Karbs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EasyFPU
This app helps individuals, particularly those with Type 1 Diabetes, calculate complex meal components like sugars, carbs, and fat-protein-units (FPUs). It aids in understanding absorption times and integrates with Apple Health for data synchronization.
- Calculate sugars, carbs, and fat-protein-units (FPUs)
- Estimate e-carb absorption times
- Create and manage personal dishes
- Search OpenFoodFacts database
- Scan product barcodes
- Sync food lists via iCloud
- Store data in Apple Health
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An iOS app - mainly for Type 1 Diabetes patients - to ease the calculation of sugars, regular carbs, fat-protein-units (FPUs) (aka extended carbs, e-carbs or fake carbs) and their matching absorption time. Fat-protein-units are known to be the reason for late blood glucose rise. Many semi-automated insulin pumps allow you to enter these e-carbs, so that the pump can deliver more insulin. Main features are: - Maintain your own, personal dishes and easily compose meals containing as many dishes as you wish - Search for products in OpenFoodFacts food database - Scan barcode of products - The app calculates your meal's total calories, sugars, carbs, extended carbs (e-carbs) from fat and protein (FPU - Fat Protein Units), and recommends the time your body will need to absorb these e-carbs (aka. absorption time) - Store your sugars, carbs, e-carbs and/or calories in Apple Health (only on user request, no automated storage) for utilization by other apps - Synchronize your food list across all your iOS devices via iCloud (optional)
Karbs
Easily track carbohydrate intake for managing diabetes. Create custom food lists, build meals, and instantly see total carb counts. Syncs with Health for comprehensive health monitoring.
- Create custom food lists
- Build meals from food lists
- Track quantities
- Instant carb calculation
- Sync with Health app
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Count carbs easier than ever. Crafted with love for patients with diabetes. - Create a list of food you buy at the supermarket or order at your favorite restaurants. - Create meals and add food from your own list. - Add the quantity for each item. - See the total calculation immediately. - Sync data with Health. Disclaimer: This application can cause you severe harm in case of misuse. If you are a patient with a metabolic disease such as diabetes, your doctor must teach you how to count carbohydrates properly from nutrition facts. You should stop using this application immediately if you do not know how to count carbohydrates. If you use a bolus calculator and you inject insulin based on an erroneous amount of carbohydrates you could be at serious risk, including risk of death. If you use this application, you understand and agree that you are solely responsible for its correct use and supervision by a professional. This application is not a regulated medical device.
Screenshots
Verdict
The clearest difference is price: EasyFPU at Free against Karbs's $2.99. EasyFPU also leads on review sentiment (40% vs 0%) and iOS requirement (17.6 vs 27.0). Karbs's advantage is update cadence (every 8 days vs every 3 weeks). On ads, in-app purchases and device support 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
EasyFPU is free to download; Karbs costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
EasyFPU ships an update every 3 weeks, Karbs every 8 days. The most recent releases landed on October 13, 2026 and September 24, 2026 respectively.
| Parameter | EasyFPU | Karbs |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | 40.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 — better | 27.0 |
| Further details — not scored | ||
| Size | 17 MB | 12 MB |
| Age rating | 4+ | 17+ |
| Developer | Ulrich Rueth | Cristian Ortega Gomez |
Customer experience
EasyFPU
Karbs
In-app purchases
EasyFPU
No in-app purchases
Karbs
No in-app purchases









