Rock Fan vs EasyFPU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rock Fan
This app allows ROCKWOOL customers to earn points by purchasing products, which can then be redeemed for vouchers and services. Stay updated on the latest news, announcements, and special campaigns from ROCKWOOL.
- Earn points on ROCKWOOL product purchases
- Redeem points for vouchers and services
- Receive news and announcements
- Participate in special campaigns
- Track accumulated points
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ROCKWOOL Rock Fan offers you a fast, easy and seamless way to enjoy the benefits of being a ROCKWOOL customer. You can claim from a wide range of vouchers and services directly within Rock Fan just by redeeming them with the points that have been accumulated in your account. So the more ROCKWOOL products you purchase, the more points you will earn. Through the Rock Fan app, we will keep you informed on the latest news and announcements from ROCKWOOL. Do check out our special campaigns from time to time to earn even more bonus points!
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)
Screenshots
Verdict
The clearest difference is rating: Rock Fan at 5.0 against EasyFPU's 4.0. Rock Fan also leads on iOS requirement (13.0 vs 17.6). EasyFPU's advantage is update cadence (every 3 weeks vs every 5 months). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Rock Fan holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Rock Fan ships an update every 5 months, EasyFPU every 3 weeks. Both last shipped on November 3, 2026.
| Parameter | Rock Fan | EasyFPU |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.0 (2 ratings) |
| Positive reviews | — | 40.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 108 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | ROCKWOOL BUILDING MATERIALS (SINGAPORE) PTE. LTD. | Ulrich Rueth |
Customer experience
Rock Fan
EasyFPU
In-app purchases
Rock Fan
No in-app purchases
EasyFPU
No in-app purchases









