# CoreWeight vs FitCat

The clearest difference is update cadence: CoreWeight at every 6 days against FitCat's fortnightly. CoreWeight also leads on device support (4 vs 2). FitCat's advantage is iOS requirement (15.5 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. CoreWeight sells 3 in-app purchases, starting at $1.99 per month and FitCat sells 2 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

CoreWeight ships an update every 6 days, FitCat fortnightly. The most recent releases landed on September 23, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | CoreWeight | FitCat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Fortnightly |
| Size | 15 MB | 154 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hiroomi Kubo](https://appshunter.io/developer/1819954362) | [Emyu K.K.](https://appshunter.io/developer/1882888301) |

## What reviewers say

### CoreWeight

[App page](https://appshunter.io/ios/app/coreweight/id6747131690)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Membership | $1.99 | per month |
| Annual Membership | $9.99 | per year |
| Lifetime License | $4.99 | one-time |


### FitCat

[App page](https://appshunter.io/ios/app/fitcat-workout-log/id6760154285)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FitCat Plus Monthly Plan | $0.49 | per month |
| FitCat Pro Monthly Plan | $5.99 | per month |


## Frequently asked questions

### Is CoreWeight free?

CoreWeight is free to download, with in-app purchases available.

### Is FitCat free?

FitCat is free to download, with in-app purchases available.

### Do CoreWeight or FitCat have ads?

Both CoreWeight and FitCat show ads.

### Which is updated more often, CoreWeight or FitCat?

CoreWeight ships an update every 6 days, and FitCat fortnightly. Most recently, CoreWeight was updated on September 23, 2026 and FitCat on September 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*