# Lock Screen Calendar vs arka

The clearest difference is in-app purchases: arka at none against Lock Screen Calendar's 7. arka also leads on review sentiment (100% vs 88%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lock Screen Calendar sells 7 in-app purchases, starting at $4.49 per month. arka asks for nothing beyond the download.

Lock Screen Calendar ships an update every 3 days, arka every 5 days. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Lock Screen Calendar | arka |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 38 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gridus Co.](https://appshunter.io/developer/1636121761) | [jin kyung choi](https://appshunter.io/developer/6812963254) |

## 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 |


### arka

[App page](https://appshunter.io/ios/app/arka-link-archive/id6812963252)

A straightforward application for storing links you wish to revisit later. Save content from various platforms with a single tap and add notes to recall why you saved it. Organize links into custom collections and share them with others.

**Highlights:** Save links from share sheet, Add notes to saved links, Organize links into collections, Open links in original apps, Share collections with friends, Import collections from text, Local data storage, no account needed

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lock Screen Calendar free?

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

### Is arka free?

arka is free to download, with no in-app purchases.

### Do Lock Screen Calendar or arka have ads?

Neither Lock Screen Calendar nor arka shows ads.

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

Lock Screen Calendar ships an update every 3 days, and arka every 5 days. Most recently, Lock Screen Calendar was updated on October 16, 2026 and arka on October 12, 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.*