Comparison

Four Days vs BellPace

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

Head to head
About

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.

Highlights
  • Rotation diet tracking
  • Avoid food repetition
  • Prevent new intolerances
  • Enhance nutrient diversity
  • Support gut healing
Features
Read full description

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.

About

BellPace

Features
Read full description

BellPace helps you stay focused on training instead of counting. Use your iPhone camera to track reps in real time, monitor your pace, and review detailed session stats after every workout. Built for serious kettlebell training, the app is designed to make live tracking simple, clear, and useful during every session. One of its standout features is overhead fixation tracking, a championship-style counting mode built for athletes who train to higher competition standards. When enabled, a rep is validated only after a stable, controlled overhead lockout, helping you train not just for volume, but for precision, control, and clean technique. With a clean, focused interface built for training, BellPace makes it easy to start a session, follow your numbers live, and review your results when you're done. What you can do with BellPace: Track reps live during your workout Monitor pace and RPM throughout the session Use optional overhead fixation rules for stricter rep validation Adjust fixation timing and angle thresholds to match your training needs Review session summaries with key stats Save workout history and compare progress over time Choose performance modes to balance accuracy and battery usage Train with a simple, distraction-free experience BellPace is built for athletes who want a practical training companion today, with more movement support and advanced features planned over time.

Screenshots

Four Days4 screens
BellPace4 screens

Verdict

The call

The clearest difference is price: BellPace at Free against Four Days's $1.99. BellPace also leads on update cadence (weekly vs every 4 months). Four Days's advantage is ads (none vs shown) and iOS requirement (13.4 vs 16.4). On 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

CostPrice · In-app purchases · Ads · Monetization

BellPace is free to download; Four Days costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Four Days ships an update every 4 months, BellPace weekly. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Four Days versus BellPace: the parameters behind the verdict, then further details
ParameterFour DaysBellPace
Price$1.99Free — better
Rating2.6 (8 ratings) — better—
Positive reviews44.4% of reviews—
Number of ratings8 — better—
Update frequencyEvery 4 monthsWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPod — betteriPhone
Requires iOS13.4 — better16.4
Further details — not scored
Size23 MB110 MB
Age rating4+4+
DeveloperSergio Gutierrez MotaKamil Chec

In-app purchases

None

Four Days

No in-app purchases

None

BellPace

No in-app purchases

Questions

Is Four Days free?
Four Days costs $1.99, with no in-app purchases.
Is BellPace free?
BellPace is free to download, with no in-app purchases.
Do Four Days or BellPace have ads?
BellPace shows ads; Four Days does not.
Which is updated more often, Four Days or BellPace?
Four Days ships an update every 4 months, and BellPace weekly. Most recently, Four Days was updated on October 1, 2026 and BellPace on October 4, 2026.

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