# Perfect Lock vs Cat's Study

The clearest difference is ads: Perfect Lock at none against Cat's Study's shown. Cat's Study's advantage is iOS requirement (16.6 vs 18.4). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Perfect Lock sells 2 in-app purchases, starting at $1.99 per month and Cat's Study sells 6 in-app purchases, starting at $2.49 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Perfect Lock | Cat's Study |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 199 MB |
| Requires iOS | 18.4 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [yunosuke yata](https://appshunter.io/developer/6787603181) | [Lo-Fi Labs Inc.](https://appshunter.io/developer/6796905768) |

## What reviewers say

### Perfect Lock

[App page](https://appshunter.io/ios/app/perfect-lock-screen-time/id6787911742)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perfect Lock | $1.99 | per month |
| Perfect Lock | $29.99 | per year |


### Cat's Study

[App page](https://appshunter.io/ios/app/cats-study-focus-timer/id6816829300)

Enhance your focus with a charming virtual cat companion. This app offers customizable Pomodoro timers, task planning, and progress tracking. Personalize your study space with various themes and sounds, and connect with friends for collaborative focus sessions.

**Highlights:** Customizable Pomodoro and stopwatch timers, Task planning and categorization, Focus time tracking and streaks, Themable rooms and ambient sounds, Social focus sessions with friends and crews, Cat and room customization with earned coins

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cat's Study Pro Monthly | $2.49 | per month |
| Cat's Study Pro Annual | $14.49 | per year |
| 100 Coins | $1.49 | one-time |
| 500 Coins | $6.49 | one-time |
| 1,000 Coins | $9.99 | one-time |
| Cat's Study Pro Lifetime | $33.49 | one-time |


## Frequently asked questions

### Is Perfect Lock free?

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

### Is Cat's Study free?

Cat's Study is free to download, with in-app purchases available.

### Do Perfect Lock or Cat's Study have ads?

Cat's Study shows ads; Perfect Lock does not.

---

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