# Bluck vs Watermelon Checker

The clearest difference is ads: Bluck at none against Watermelon Checker's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Bluck sells 1 in-app purchase, starting at $1.99 per month and Watermelon Checker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Bluck ships an update every 11 days, Watermelon Checker weekly. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Bluck | Watermelon Checker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 120 MB | 93 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seungrae Cho](https://appshunter.io/developer/1620778100) | [Jisu Jung](https://appshunter.io/developer/1731788096) |

## What reviewers say

### Bluck

[App page](https://appshunter.io/ios/app/bluck-challenge-tracker/id6740204211)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro plan | $1.99 | per month |


### Watermelon Checker

[App page](https://appshunter.io/ios/app/watermelon-checker/id6771640605)

This app helps you compare watermelons by analyzing their visual appearance from photos. It assesses patterns, color, and surface features to provide recommendations based on objective criteria, not taste or sweetness.

**Highlights:** Photo analysis of up to 16 watermelons, Up to 2 appearance-based recommendations, Visual scoring and reasoning for top choices, On-device photo analysis, Refined analysis for stickers and glare, Optional ad removal via in-app purchase

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $3.99 | one-time |


## Frequently asked questions

### Is Bluck free?

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

### Is Watermelon Checker free?

Watermelon Checker is free to download, with in-app purchases available.

### Do Bluck or Watermelon Checker have ads?

Watermelon Checker shows ads; Bluck does not.

### Which is updated more often, Bluck or Watermelon Checker?

Bluck ships an update every 11 days, and Watermelon Checker weekly. Most recently, Bluck was updated on November 12, 2026 and Watermelon Checker on November 13, 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.*