Calzy vs There's a Cat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calzy
This app offers a modern and intuitive way to perform everyday calculations. It features a unique Memory Area for reusing values, bookmarking for saved calculations, and leverages the latest iOS technologies for a seamless experience. Designed with privacy in mind, it's suitable for students and professionals alike.
- Memory Area for reusing values
- Calculation bookmarking with titles
- Basic and advanced calculation modes
- Privacy mode with Face ID
- Live Activity and Haptic Touch support
- Customizable keypad layout
- Dark and Light modes
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Make your day-to-day calculations quick, easy, and beautiful with Calzy. Whether you're a student, professional, or just looking for a better way to manage your everyday math, Calzy is the perfect solution. With its advanced features and gorgeous design, Calzy will quickly become your go-to calculator. One of its standout features is the "Memory Area," where you can store and easily reuse multiple numerical values with just a drag and drop. Another one is the bookmarking feature, allowing you to save any calculation with a title for future reference. Using the latest iOS technology, like Live Activity, Drag and Drop, Haptic Touch, Face ID, and more, Calzy makes mathematical problem-solving a seamless experience. And with privacy being our top concern, rest assured your data stays with you. Key Features: • Memory Area for saving and reusing numerical values • Basic and advanced modes • History and Bookmarking with privacy mode (Face ID support) • Clean, modern, and beautiful design • Privacy-conscious app • Multitasking with slide-over and split view for iPad • Haptic Feedback for a more immersive experience • Tax + and Tax - functions • Quick toggle for decimal and currency rounding • Smart parenthesis • Today widget and iMessage extension • Ability to edit keypad layout • Apple Pencil 2 support and external keyboard support • Dynamic type support for enhanced readability • Custom App Icon support for a personalized touch • Universal app for iPhone, Apple Watch, and iPad • Handoff support, start on one device and resume on another • iCloud sync • Dark and Light modes with multiple color accents • Regional support for countries using decimal commas • Instant calculations as you type • Bookmarks are available in the Spotlight search • Universal purchase for all your devices • Family Sharing support • Localized in Chinese, Japanese, French, Italian, Russian and German Powered by the latest iOS technology, Calzy is the calculator for the new age.
There's a Cat
This app offers a minimalist clock and Pomodoro timer featuring a serene, monochrome room with a cat. It's designed to provide a calming background presence for your workspace or bedside, with dynamic lighting and ambient sounds that change with the real time of day.
- Monochrome room with cat animation
- Dynamic lighting shifts with time of day
- Ambient soundscape and rain effects
- Pomodoro timer for focus sessions
- Calming desk clock
- Silhouette cat movements
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"There's a Cat" is a clock and Pomodoro timer set inside a quiet, monochrome room — with a cat living in it. Keep it on the corner of your desk while you work. Every time you glance over, the cat is there. It's designed to sit quietly in the background, never getting in the way of your focus. ■ The cat's quiet day A silhouette cat lives freely inside the room. It yawns, grooms itself, gazes out the window, and curls up to sleep again. We've focused on the small details — twitching ears, a swaying tail — that bring a cat to life through shadow alone. ■ A clock you can watch The screen shows a large clock and a monochrome room. The lighting shifts through morning, noon, evening, and night, in sync with the real time of day. Rain comes and goes outside the window, and the ambient sounds of the room change with it. ■ Pomodoro timer A simple Pomodoro timer is built in to mark your focus and break sessions. The cat and the room stay center stage the whole time. Only a soft bell marks each interval. ■ Made for ・A calm clock to sit on your work desk ・A short cat-watching break between focus sessions ・A quiet view by your bed before sleep ・To gently add a cat's quiet presence to your day ■ Features ・A colorless world built from light and shadow alone ・Lighting that shifts naturally with the time of day ・Occasional rain and a gentle ambient soundscape ・Natural cat motion expressed entirely through silhouette ・Clock view and Pomodoro timer
Screenshots
Verdict
The clearest difference is in-app purchases: There's a Cat at none against Calzy's 3. There's a Cat also leads on price ($0.99 vs $1.99) and iOS requirement (15.0 vs 26.0). Calzy's advantage is chart position (#150 vs unranked). On ads, monetization model 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
Calzy costs $1.99 and There's a Cat $0.99 up front. Calzy sells 3 one-off in-app purchases. There's a Cat asks for nothing beyond the download.
| Parameter | Calzy | There's a Cat |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 4.7 (1.9K ratings) — better | — |
| Positive reviews | 76.7% of reviews | — |
| Number of ratings | 1.9K — better | — |
| Update frequency | Every 2 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Paid |
| Best chart rank | #150 — better | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 66 MB | 217 MB |
| Age rating | 4+ | 4+ |
| Developer | Raja Vijayaraman | Yohei Igarashi |
In-app purchases
Calzy
- Small Tip$0.99
- Medium Tip$3.99
- Huge Tip$9.99
There's a Cat
No in-app purchases









