# ADClock Blackboard vs Lightweight Clock

The clearest difference is iOS requirement: ADClock Blackboard at 6.0 against Lightweight Clock's 15.1. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for ADClock Blackboard against 5.0 for Lightweight Clock. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | ADClock Blackboard | Lightweight Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/adclock-blackboard/id574832850/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/lightweight-clock/id6733222071/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | — |
| Monetization | Free | Free |
| Size | 28 MB | 17 MB |
| Requires iOS | **6.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyuki Otsuka](https://appshunter.io/developer/554117199) | [Floyd Ross](https://appshunter.io/developer/1602980654) |

## What reviewers say

### ADClock Blackboard

[App page](https://appshunter.io/ios/app/adclock-blackboard/id574832850)

This utility app displays analog and digital clocks with a unique "Blackboard" design theme. It offers customizable display formats, date indications, and orientation mirroring. Users can also control time signal voice sounds and auto-lock settings.

**Highlights:** Analog and digital clock display, Blackboard design theme, 12/24-hour format switch, Date indication (EN, JP, KR), Auto lock ON/OFF, Horizontal/vertical inversion, Time signal voice sound

**Features:** macOS Compatibility

**In-app purchases:** none


### Lightweight Clock

[App page](https://appshunter.io/ios/app/lightweight-clock/id6733222071)

This utility app provides a straightforward and customizable clock display. It features an option for 24-hour format and shows seconds for precise timekeeping. It's designed for simplicity and ease of use.

**Highlights:** Customizable clock display, Seconds displayed, 24-hour format option, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ADClock Blackboard free?

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

### Is Lightweight Clock free?

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

### Which has better reviews, ADClock Blackboard or Lightweight Clock?

ADClock Blackboard and Lightweight Clock are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ADClock Blackboard or Lightweight Clock have ads?

Neither ADClock Blackboard nor Lightweight Clock shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*