# Big binary clock vs CardKeeper

The clearest difference is price: CardKeeper at Free against Big binary clock's $0.99. Big binary clock's advantage is iOS requirement (14.4 vs 18). On ads, in-app purchases and device support there is nothing between them.

CardKeeper is free to download; Big binary clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Big binary clock | CardKeeper |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/big-binary-clock/id572188132/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | — |
| Monetization | Paid | — |
| Size | 2 MB | 2 MB |
| Requires iOS | **14.4** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Rutkowskij](https://appshunter.io/developer/518370415) | [Milan Djordjevic](https://appshunter.io/developer/1062561990) |

## What reviewers say

### Big binary clock

[App page](https://appshunter.io/ios/app/big-binary-clock/id572188132)

This app displays the current time using binary code. Customize the appearance with different LED shapes, colors, and brightness levels. It offers a unique way to view time for tech enthusiasts.

**Highlights:** Binary time display, Round LED option, Square LED option, Geek mode, Customizable colors, Adjustable brightness

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

**In-app purchases:** none


### CardKeeper

[App page](https://appshunter.io/ios/app/cardkeeper-cards-and-passes/id6761535183)

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

**In-app purchases:** none


## Frequently asked questions

### Is Big binary clock free?

Big binary clock costs $0.99, with no in-app purchases.

### Is CardKeeper free?

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

### Do Big binary clock or CardKeeper have ads?

Neither Big binary clock nor CardKeeper shows ads.

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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.*