FeedZ2 vs Subintervals
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FeedZ2
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In the application there are four tabs with different functions: Tab one, profile: the user's personal data appears (weight, height and sex) as well as anthropometric values (physical measurements) that are used for different functionalities within the nutritional plan. We can also find body values based on the ISAK methodology, both the measurements and the results obtained from them. Tab two, statistics: temporary graphs of parameters such as weight and its subtypes, sum of skin folds, percentages of body values and somatotype appear. The values are classified into the oldest, middle and newest reflected in different graphs. Tab three, feeding plan: the nutritional and supplementation plans are reflected for each scheduled intake during the day, as well as daily calorie and macronutrient values. We can also incorporate training sessions into the same plan. Within each intake, new foods or dishes can be incorporated, as well as different types of supplements and quantities. In the nutritional plan itself we have the option of doing it as a race or as training. It can be managed by the user themselves and by the administrator at the same time. The diet can be planned in advance or can be planned on the spot. Tab four, dictionary: the foods included in the application appear in addition to the recipes, recommended supplements and activities. You can see the amount of macro and micro-nutrients in each food as well as the preparation and nutritional value of each dish. Tab 5, others: PDF can be stored in it with the possibility of adding a title and saving it. More information about me and how I approach sports, health, and nutrition: https://www.prietobellver.com/sobre-mi/
Subintervals
Visualize your training data with detailed displays and interactive graphs. Customize your analysis and sync seamlessly with intervals.icu for up-to-the-minute insights into activities, events, and performance metrics.
- Detailed activity and event visualization
- Interactive performance graphs
- Seamless intervals.icu sync
- Customizable data analysis
- Actionable training insights
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Elevate Your Training with Subintervals Subintervals transforms your intervals.icu data into actionable insights. This app brings your training activities, events, and performance metrics to life through detailed displays and interactive graphs. Customise and control your data for a tailored analysis, and seamlessly sync with intervals.icu for up-to-the-minute information. Key Features: - Detailed visualisation of activities and events. - Dynamic, interactive graphs for performance tracking. - Effortless sync with intervals.icu. Please note that it is an independent application developed by an enthusiast keen on providing a complementary tool to the official platform.
Screenshots
Verdict
The clearest difference is in-app purchases: FeedZ2 at none against Subintervals's 4. FeedZ2 also leads on iOS requirement (11.0 vs 15.1). On price, update cadence, ads 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
Both are free to download. Subintervals sells 4 one-off in-app purchases. FeedZ2 asks for nothing beyond the download.
FeedZ2 ships an update every 10 days, Subintervals weekly. The most recent releases landed on July 16, 2026 and September 10, 2026 respectively.
| Parameter | FeedZ2 | Subintervals |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 10 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 361 MB | 95 MB |
| Age rating | 17+ | 4+ |
| Developer | Prieto-Bellver SL | Inaki Arroyo Nebreda |
In-app purchases
FeedZ2
No in-app purchases
Subintervals
- Coffee$3.99
- Lunch$11.99
- Big Thanks$17.99
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- Sponsor$44.99









