# K vs Case Checkr

The clearest difference is price: Case Checkr at Free against K's $4.99. Case Checkr also leads on rating (4.8 vs 4.0). K's advantage is in-app purchases (none vs 5) and iOS requirement (8.0 vs 18.5). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

Case Checkr is free to download; K costs $4.99 up front. Case Checkr sells 5 one-off in-app purchases. K asks for nothing beyond the download.

Case Checkr holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 133 and 93 respectively. Written reviews complicate that: 79% of K's written reviews are positive against 71% of Case Checkr's, so the app with the better star average is not the one people write more warmly about.

K ships an update monthly, Case Checkr every 3 weeks. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | K | Case Checkr |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.0 (133 ratings)](https://appshunter.io/ios/app/k-keyboard/id955157912/reviews) | **[4.8 (93 ratings)](https://appshunter.io/ios/app/case-checkr-uscis/id6753090135/reviews)** |
| Number of ratings | **133** | 93 |
| Positive reviews | **78.6% of reviews** | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 21 MB | 21 MB |
| Requires iOS | **8.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lin Bunchan](https://appshunter.io/developer/457862322) | [Zhaonian Luan](https://appshunter.io/developer/1816625043) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-keyboard/id955157912)

This app provides a fast and beautifully designed keyboard extension for iOS, enabling easy input of the Khmer language. It offers a full set of Khmer characters with a character preview feature for enhanced typing accuracy.

**Highlights:** Fast and beautiful Khmer keyboard, System keyboard design, Character preview for typing, Full Khmer character set, Easy installation and enabling

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

**In-app purchases:** none


### Case Checkr

[App page](https://appshunter.io/ios/app/case-checkr-uscis/id6753090135)

This app provides real-time tracking for USCIS cases with automatic background checks and timely notifications. It offers a clean interface to manage multiple receipt numbers, view case history, and understand detailed status explanations. The tracker is privacy-friendly, requiring no account or login.

**Highlights:** Real-time USCIS case tracking, Automatic background checks, Timely notifications, Manage multiple receipt numbers, Clear case history, Detailed status explanations, Privacy-friendly, no login required

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip for CaseCheckr Team | $0.99 | one-time |
| Purchase one more case slot | $1.49 | one-time |
| Case Status Widget | $1.99 | one-time |
| Tip for CaseCheckr Team | $2.99 | one-time |
| Tip for CaseCheckr Team | $9.99 | one-time |


## Frequently asked questions

### Is K free?

K costs $4.99, with no in-app purchases.

### Is Case Checkr free?

Case Checkr is free to download, with in-app purchases available.

### Which has better reviews, K or Case Checkr?

Case Checkr is rated higher. K averages 4.0 out of 5 from 133 ratings, while Case Checkr averages 4.8 from 93 ratings.

### Do K or Case Checkr have ads?

Neither K nor Case Checkr shows ads.

### Which is updated more often, K or Case Checkr?

K ships an update monthly, and Case Checkr every 3 weeks. Most recently, K was updated on November 1, 2026 and Case Checkr on November 5, 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.*