# Simple Clock vs BDC

The clearest difference is in-app purchases: BDC at none against Simple Clock's 2. BDC also leads on ads (none vs shown). Simple Clock's advantage is update cadence (fortnightly vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Clock sells 2 one-off in-app purchases. BDC asks for nothing beyond the download.

Simple Clock ships an update fortnightly, BDC every 4 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Simple Clock | BDC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (297 ratings)](https://appshunter.io/ios/app/simple-clock-study-with-me/id1462926848/reviews)** | — |
| Number of ratings | **297** | — |
| Positive reviews | 74.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 185 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [乃君 黄](https://appshunter.io/developer/1337343608) | [MILESEUM INC.](https://appshunter.io/developer/1736446436) |

## What reviewers say

### Simple Clock

[App page](https://appshunter.io/ios/app/simple-clock-study-with-me/id1462926848)

A straightforward digital clock designed for focus and study sessions. It offers a simple interface with essential timekeeping functions and customizable themes to enhance your work environment.

**Highlights:** Basic time, date, week display, Countdown timer, Timing function, Pomodoro timer, Multiple themes and fonts, Custom background image

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlock all contents | $0.99 | one-time |
| Support Developer | $1.99 | one-time |

**What reviewers like**

- 👍 Simplicity and ease of use
- 🌟 Good for study focus
- 🖼️ Customizable backgrounds/fonts
- ✨ Minimalist design
- 🚫 Ad-free (for some users)

**What reviewers complain about**

- 💰 Many features require payment
- 🤔 Difficult to navigate/find options
- ⏳ Limited timer duration (free version)
- 📱 Some users report unresponsiveness
- 💸 Paid features should be free

**Reported bugs**

- Cannot exit timer mode
- App unresponsive on some devices
- Quit working correctly, stuck on military time
- Cannot change clock design
- Not compatible with iPhone

**Requested features**

- Add alarm function
- Allow setting custom wallpaper and adjusting its size/position
- Add option to change font color with custom images
- Add a countdown feature
- Add PiP mode for iPad


### BDC

[App page](https://appshunter.io/ios/app/bdc/id6479596132)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simple Clock free?

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

### Is BDC free?

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

### Do Simple Clock or BDC have ads?

Simple Clock shows ads; BDC does not.

### Which is updated more often, Simple Clock or BDC?

Simple Clock ships an update fortnightly, and BDC every 4 months. Most recently, Simple Clock was updated on October 12, 2026 and BDC on October 2, 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.*