# Lock Screen Calendar vs Spark Catcher

The clearest difference is iOS requirement: Lock Screen Calendar at 18.0 against Spark Catcher's 26.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Lock Screen Calendar sells 7 in-app purchases, starting at $4.49 per month and Spark Catcher sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Lock Screen Calendar ships an update every 3 days, Spark Catcher every 6 days. The most recent releases landed on October 16, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Lock Screen Calendar | Spark Catcher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (19 ratings)](https://appshunter.io/ios/app/lock-screen-calendar-coretask/id6478839577/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 88.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 28 MB |
| Requires iOS | **18.0** | 26.1 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Gridus Co.](https://appshunter.io/developer/1636121761) | [LEE NAYOUNG](https://appshunter.io/developer/1893982014) |

## What reviewers say

### Lock Screen Calendar

[App page](https://appshunter.io/ios/app/lock-screen-calendar-coretask/id6478839577)

This app helps you manage your time and overcome procrastination by organizing tasks based on importance and urgency. It offers a focus timer to help you complete tasks efficiently and reduce stress.

**Highlights:** Priority setting by importance and urgency, Step-by-step task organization, Time allocation for tasks, Focus timer for task completion, Stress reduction and productivity boost

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $4.49 | per month |
| Weekly Plan | $4.49 | per 7 days |
| Monthly Plan | $5.99 | per month |
| Annual Plan | $29.99 | per year |
| Annual Plan | $39.99 | per year |
| Lifetime Plan | $29.99 | one-time |
| Lifetime Plan | $59.99 | one-time |


### Spark Catcher

[App page](https://appshunter.io/ios/app/spark-catcher-notes-and-tasks/id6798179550)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark Catcher Pro Monthly | $0.99 | per month |
| Spark Catcher Pro Yearly | $11.99 | per year |
| Spark Catcher Pro One-Time Purchase | $29.99 | one-time |


## Frequently asked questions

### Is Lock Screen Calendar free?

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

### Is Spark Catcher free?

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

### Do Lock Screen Calendar or Spark Catcher have ads?

Neither Lock Screen Calendar nor Spark Catcher shows ads.

### Which is updated more often, Lock Screen Calendar or Spark Catcher?

Lock Screen Calendar ships an update every 3 days, and Spark Catcher every 6 days. Most recently, Lock Screen Calendar was updated on October 16, 2026 and Spark Catcher on September 26, 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.*