# CompisCalculator Pro vs Lock In

The clearest difference is rating: CompisCalculator Pro at 5.0 against Lock In's 4.0. CompisCalculator Pro also leads on monetization model (free vs free with in-app purchases) and device support (3 vs 1). Lock In's advantage is update cadence (weekly vs every 3 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. CompisCalculator Pro sells 1 one-off in-app purchase and Lock In sells 9 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CompisCalculator Pro holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

CompisCalculator Pro ships an update every 3 weeks, Lock In weekly. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | CompisCalculator Pro | Lock In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/compiscalculator-pro/id6451198443/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/lock-in-app-lock-focus-timer/id6742712899/reviews) |
| Number of ratings | 2 | **3** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 59 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Karl Noreland](https://appshunter.io/developer/1697120498) | [MARCUS ALEXANDER DOMANN](https://appshunter.io/developer/1790957370) |

## What reviewers say

### CompisCalculator Pro

[App page](https://appshunter.io/ios/app/compiscalculator-pro/id6451198443)

A scientific calculator designed to enhance productivity with features like real-time results, unit conversion, and custom buttons. It offers a date calculator, customizable appearance, and is optimized for iPad.

**Highlights:** Real-time calculation results, Integrated unit and currency converter, Customizable buttons and functions, Date and time difference calculator, Calculation history, Customizable appearance, iPad optimization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CompisCalculator premium | $2.49 | one-time |


### Lock In

[App page](https://appshunter.io/ios/app/lock-in-app-lock-focus-timer/id6742712899)

This app helps you block distracting applications and manage your daily tasks with a built-in Pomodoro timer and planner. It guides you through setting goals, planning your day, and focusing on what matters to improve productivity and reduce screen time.

**Highlights:** App Lock & Blocker, Pomodoro Focus Timer, Smart Daily Planner, Task Vault & To-Do List, Distraction Diagnosis, Digital Detox Mode

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lock-In Premium | $2.99 | per 7 days |
| Lock-In Premium | $6.99 | per month |
| Premium | $17.99 | per year |
| Lock-In Premium | $19.99 | per year |
| Lock-In Premium | $19.99 | per year |
| Lock-In Premium | $39.99 | per year |
| Lock In - Lifetime Access | $19.99 | one-time |
| Lock-In Premium Lifetime | $24.99 | one-time |
| Lock-In Premium Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is CompisCalculator Pro free?

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

### Is Lock In free?

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

### Which has better reviews, CompisCalculator Pro or Lock In?

CompisCalculator Pro is rated higher. CompisCalculator Pro averages 5.0 out of 5 from 2 ratings, while Lock In averages 4.0 from 3 ratings.

### Do CompisCalculator Pro or Lock In have ads?

Neither CompisCalculator Pro nor Lock In shows ads.

### Which is updated more often, CompisCalculator Pro or Lock In?

CompisCalculator Pro ships an update every 3 weeks, and Lock In weekly. Most recently, CompisCalculator Pro was updated on September 29, 2026 and Lock In on September 28, 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.*