Comparison

Swap It. vs CatDays

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

Head to head
About

Swap It.

Features
Read full description

"When was the last time you changed your toothbrush?" Some things do not need to stay on your mind every day, but when it is time to replace them, restock them, or handle them later, they still need a place to go. Swap It helps you remember these small everyday things. It is not just another to-do list. It helps you manage the status of household items: still fine, almost due, due today, running low, or postponed for later. Open the app and you will know what needs your attention. Family Swap It. 2.0: from keeping track on your own, to keeping track together as a family. You used to log, replace, and restock household items by yourself. Now create a family and invite people in. Everyone can open the app and see what is running low or due. Who restocked and who replaced something stays in Family Activity. No more asking who bought the toilet paper. 9 key features: 1. Today's reminders See what needs to be replaced, restocked, or handled today, sorted by urgency so the most important items are easy to find. 2. Replacement cycle tracking Set a usage cycle and reminder date for each item. Great for toothbrushes, towels, filters, contact lenses, air conditioner filters, and other items that need regular replacement. 3. Spare item inventory Keep track of how many spare items you have at home and set a safe stock level. When the quantity gets low, the app reminds you to restock. 4. Automatic shopping list Items that are running low can be gathered into a shopping list, so you are less likely to forget them when you go out. 5. Collection book and item photos Add photos and categories to your items, making household supplies easier to browse and manage than a plain text list. 6. Quick setup for common items Use built-in templates for common household consumables, so you can add frequently used items faster without starting from scratch. 7. Location organization Organize items by places such as the living room, kitchen, bathroom, or bedroom, making it easier to find things and check what you have. 8. Usage history and statistics Record each replacement and restock, then review your actual usage cycle over time to create reminders that better match your routine. 9. Track together as a family Create a family and invite people in. Everyone can see what is running low or due; who restocked and who replaced something stays in Family Activity. Expiration dates and shelf life: Beyond replacement cycles, you can track the expiration date of food, medicine, cosmetics, and skincare. Period-after-opening shelf life is tracked separately, so you get reminded before something expires instead of finding out too late. Great for tracking: ・Toothbrushes, towels, contact lenses, and other items replaced regularly ・Water purifier filters, air purifier filters, vacuum accessories, and other maintenance supplies ・Batteries, toilet paper, laundry detergent, cleaning refills, and other spare items ・Cosmetics, skincare, and medicine with an expiry date ・Food and condiments in your fridge or pantry ・Any small household task you do not want to think about every day, but also do not want to forget Items that are running low are gathered into a shopping list, so you know what to buy before you head out. Your item data is mainly managed on your device, making it a simple and private way to organize everyday supplies. With a Pro account, you can turn on Personal Space auto-sync so your data follows you to another device. After you create a family, everyone in it can keep track together. Keep replacements, restocking, and reminders in one place. Let Swap It remember every day that something needs attention. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sheepbeansgames.cc/swap-it/privacy

About

CatDays

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
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CatDays is a minimalist countdown and day counter app. Choose a cat for every day that matters. It’ll wait with you for what’s ahead and remember how far you’ve come. Whether you’re looking forward to something in the future or marking a journey already underway, leave the counting to a cat. Every time you open CatDays, it’ll be right there, counting with you. ・Two ways to count: down and up Count down the days until something ahead, or count up the days since something began. Birthdays, trips, anniversaries, exams, or every day since you gave something up—CatDays can keep track of them all. ・The days you’ve lived are worth keeping Every season of anticipation and perseverance deserves to be remembered. One-time countdowns automatically move to Memories after they end. When a chapter comes to a close, you can stop a count-up on the exact day it ended. If you want to keep going, you can bring it back and continue counting anytime. ・A cat of your own Every date can have its own cat. Give it a tap and it’ll strike a new pose and speak in its own distinctive voice—five cats, five personalities, each offering a different kind of companionship. ・Your cat will remind you when it matters When an important day is near or arrives, your cat will send a gentle reminder. It’ll also check in when a count-up reaches a milestone worth marking. Turn reminders on or off and choose your preferred reminder time in Settings—quiet and never intrusive. ・Home Screen widgets put your cat where you’ll always see it Choose from Small and Medium countdown widgets and select the dates you want to display. A Medium widget can also show up to three countdowns at once. Your cat will change poses from time to time, so every glance feels a little different. Tap a widget to jump straight to the details in CatDays—a companion you can see every day. ・Cat calendar widgets for every day Choose from a variety of cat calendar widgets featuring month, today, and week layouts. Pick your favorite cat and let it keep you company on your Home Screen every day. ・Automatic iCloud sync Your countdown data can sync automatically through iCloud across devices signed in to the same Apple Account, so it stays with you when you switch phones. Your content is stored on your device and in your personal iCloud and is never sent to our servers. ・Clean, calming, and free from distractions No ads, no subscriptions, and no complicated setup. Open CatDays and all you’ll see are your cats and the days that matter to you. 【Meet the Cats】 Included for free: Coco. Also available to unlock: Tofu, Ash, Milo, and Pumpkin. Each cat is a one-time purchase and yours to use forever—no subscription required. Want to bring all four home at once? Choose the “Original 4-cat Pack” for a better value. 【About Purchases】 CatDays is free to download, with all core features included. Additional cat characters are available as one-time purchases with no subscription fees. You can restore previously purchased content anytime from “Restore Purchases” in Settings. Let a cat keep track of the days that matter. Privacy Policy: https://catdays.app/en/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Swap It.4 screens
CatDays4 screens

Verdict

The call

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.

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

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.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Swap It. versus CatDays: the parameters behind the verdict, then further details
ParameterSwap It.CatDays
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.0 — better17.5
Further details — not scored
Size76 MB40 MB
Age rating4+4+
DeveloperKaiHsiang YangLychee Intelligence Co., Ltd.

In-app purchases

3 purchases

Swap It.

Subscriptions2
  • Swap It. Pro Monthly$0.991 Month
  • Swap It. Pro Yearly7 Days trial$8.991 Year
One-time1
  • Swap It. Pro Lifetime$14.99
5 purchases

CatDays

One-time5
  • Tofu$1.99
  • Ash$1.99
  • Milo$1.99
Show 2 more
  • Pumpkin$1.99
  • Original Cats Pack$2.99

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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