# Swap It. vs CatDays

The clearest difference is update cadence: Swap It. at every 4 days against CatDays's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Swap It. sells 3 in-app purchases, starting at $0.99 per month and CatDays sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Swap It. ships an update every 4 days, CatDays every 3 weeks. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Swap It. | CatDays |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/catdays-cat-countdown/id6773580078/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 76 MB | 40 MB |
| Requires iOS | **16.0** | 17.5 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KaiHsiang Yang](https://appshunter.io/developer/1859499755) | [Lychee Intelligence Co., Ltd.](https://appshunter.io/developer/1778934446) |

## What reviewers say

### Swap It.

[App page](https://appshunter.io/ios/app/swap-it/id6762584972)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Swap It. Pro Monthly | $0.99 | per month |
| Swap It. Pro Yearly | $8.99 | per year |
| Swap It. Pro Lifetime | $14.99 | one-time |


### CatDays

[App page](https://appshunter.io/ios/app/catdays-cat-countdown/id6773580078)

Track important dates with a customizable cat companion. Choose from various feline friends to count down to future events or count up days since past milestones. Receive gentle reminders and view your progress with home screen widgets.

**Highlights:** Countdown and count-up modes, Selectable cat companions, Customizable reminders, Home screen widgets, iCloud synchronization, Ad-free experience

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tofu | $1.99 | one-time |
| Ash | $1.99 | one-time |
| Milo | $1.99 | one-time |
| Pumpkin | $1.99 | one-time |
| Original Cats Pack | $2.99 | one-time |


## Frequently asked questions

### Is Swap It. free?

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

### Is CatDays free?

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

### Do Swap It. or CatDays have ads?

Neither Swap It. nor CatDays shows ads.

### Which is updated more often, Swap It. or CatDays?

Swap It. ships an update every 4 days, and CatDays every 3 weeks. Most recently, Swap It. was updated on September 23, 2026 and CatDays on September 19, 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.*