Four Days vs Volta
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Four Days
This app helps manage food allergies by tracking your diet. It guides you through a rotation diet to avoid repetitive food consumption and prevent new intolerances. Maintain dietary diversity and support gut health.
- Rotation diet tracking
- Avoid food repetition
- Prevent new intolerances
- Enhance nutrient diversity
- Support gut healing
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If you have multiple food allergies, one of the best ways to help yourself is to “rotate” your foods, or eat a rotation diet. Four days allow you to keep track of what you are eating to avoid repetition and prevent you from forming new food intolerances What is a rotation diet? A rotation diet is a system of controlling food allergies by eating biologically related foods on the same day and then waiting at least four days before eating them again. Such a diet can help those with food allergies in several ways and may help prevent the development of allergies to new foods. Why rotate your foods? 1. We are biologically designed to rotate foods. Man is meant to eat with the seasons. We are not designed to eat avocado every single day, because nature does not allow for it. In nature (or even 100-150 years ago) we ate what was local and available. 2. Rotation allows for more nutrient diversity. If we eat avocado as our main source of fat every day, we’re missing out on all of the healthy fats in olive oil, coconut, and beef tallow. Different foods come with different nutrients and we need variety for vibrancy! 3. Eating the same foods constantly can cause food intolerances and impede gut healing Any food, if eaten repetitively, can cause food allergies especially if we have gut issues. Why? Like we stated above, our bodies aren’t designed to eat the same thing over and over again. And if we have permeable intestines and are eating avocado daily, our immune system is reacting to the avocado over, and over, and over again. Eventually it becomes too much. Surely, the goal is to heal the gut. However, an important piece of gut healing is to remove inflammation, and stopping new intolerances from forming. Thus, a rotation diet can be an amazing strategy within a gut healing template.
Volta
This science-backed app helps women track menopause symptoms, daily habits, and lifestyle factors to identify patterns and receive practical guidance. It focuses on sleep, energy, mood, nutrition, and movement without calorie counting.
- Log daily symptoms, mood, energy, and sleep
- Track food, protein, movement, and recovery
- Receive daily, science-backed guidance
- Monitor period and cycle context
- View weekly trends and insights
- Access community support
- Learn menopause and body composition education
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Volta is a science-backed menopause companion for women in perimenopause, menopause, and post-menopause. It puts symptoms, food, workouts, and weight in one place, so you can see what's actually happening. Generic trackers miss the menopause context. Sleep may feel lighter, recovery may take longer, hot flashes or night sweats may disrupt routines, cravings may shift, and muscle matters more than it used to. Volta connects those dots and suggests a practical next step, not just another number to log. And when you finally get that doctor's appointment, you'll have a real log of what you've been dealing with. Volta can generate a shareable summary from your data to bring with you. With Volta, you can: - Track calories, protein, meals, and menopause nutrition patterns. - Follow workout guidance built around strength, recovery, and readiness. - Build muscle with protein-first nutrition and resistance training support. - Log symptoms, sleep, mood, energy, hot flashes, and night sweats. - Connect weight, workouts, food, recovery, and menopause symptoms over time. - Use daily guidance to know when to push, lift, recover, or refuel. - Review weekly trends for calories, protein, workouts, sleep, and body composition. Volta is not a diagnosis tool, medical device, treatment plan, or guarantee of weight loss. It is a menopause-focused tracking and guidance app for women working on nutrition, strength, recovery, and body composition. Volta is free to download. Access to Volta Pro features, including personalized guidance, advanced tracking, trend insights, and protocols requires a separate auto-renewing subscription purchased in the app. Plan options and local pricing are shown before purchase, and subscriptions can be managed or canceled in App Store settings. TERMS: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Volta at 100% against Four Days's 44%. Volta also leads on price (Free vs $1.99) and rating (5.0 vs 2.6). Four Days's advantage is in-app purchases (none vs 2) and chart position (#195 vs unranked). On ratings volume, 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
Volta is free to download; Four Days costs $1.99 up front. Volta sells 2 in-app purchases, starting at $5.99 per month. Four Days asks for nothing beyond the download.
Volta holds the better App Store score, 5.0 against 2.6. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews point the same way: 44% of Four Days's written reviews are positive against 100% of Volta's.
Four Days ships an update every 4 months, Volta every 4 days. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.
| Parameter | Four Days | Volta |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 2.6 (8 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 44.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 4 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Best chart rank | #195 — better | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.4 — better | 16.4 |
| Further details — not scored | ||
| Size | 23 MB | 77 MB |
| Age rating | 4+ | 17+ |
| Developer | Sergio Gutierrez Mota | Dewlulu |
Customer experience
Four Days
Volta
In-app purchases
Four Days
No in-app purchases
Volta
- Volta Monthly Plan7 Days trial$5.991 Month
- Volta Yearly Plan7 Days trial$39.991 Year









