# Atomic Clock PRO vs Daylight Saving Time

The clearest difference is in-app purchases: Daylight Saving Time at none against Atomic Clock PRO's 2. Daylight Saving Time also leads on ads (none vs shown) and rating (5.0 vs 4.7). Atomic Clock PRO's advantage is ratings volume (10K vs 10) and update cadence (every 3 months vs every 19 months). On price, review sentiment and device support there is nothing between them.

Both are free to download. Atomic Clock PRO sells 2 in-app purchases, starting at $1.99 per month. Daylight Saving Time asks for nothing beyond the download.

Daylight Saving Time holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Atomic Clock PRO has 10K ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 73% of Atomic Clock PRO's written reviews are positive against 67% of Daylight Saving Time's, so the app with the better star average is not the one people write more warmly about.

Atomic Clock PRO ships an update every 3 months, Daylight Saving Time every 19 months. The most recent releases landed on October 11, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | Daylight Saving Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews) | **[5.0 (10 ratings)](https://appshunter.io/ios/app/daylight-saving-time/id1165950653/reviews)** |
| Number of ratings | **10K** | 10 |
| Positive reviews | **72.9% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 4 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brachmann Online Marketing GmbH & Co. KG](https://appshunter.io/developer/682848918) | [hideko ogawa](https://appshunter.io/developer/412806000) |

## What reviewers say

### Atomic Clock PRO

[App page](https://appshunter.io/ios/app/atomic-clock-pro/id899090224)

Get the most accurate time from an official atomic clock server. This app automatically detects your time zone and allows custom backgrounds. Easily switch between digital and analog clock displays with a swipe.

**Highlights:** Exact time from atomic clock, Automatic time zone recognition, Customizable background images, Digital and analog clock modes, Optional sound alerts, Color customization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Remove Ads | $5.99 | one-time |

**What reviewers like**

- ⭐ Accurate time display
- 📟 Useful for timing events
- 🕰️ Helpful for setting other clocks
- 🔍 Large, easy-to-read clock face

**What reviewers complain about**

- 💸 Subscription model for ad-free version
- 📢 Excessive advertisements
- 🔍 Small font for seconds display
- 🔀 Difficulty in displaying both analog and digital clocks simultaneously

**Reported bugs**

- Second hand occasionally runs in reverse
- Digital clock display cuts off on some devices
- Inconsistent behavior when switching between clock types

**Requested features**

- Customizable clock face options
- Ability to set widget on home screen
- Sync with system clock to automatically update time


### Daylight Saving Time

[App page](https://appshunter.io/ios/app/daylight-saving-time/id1165950653)

Easily track daylight saving time changes worldwide. This app provides accurate switching dates for DST and standard time across various time zones.

**Highlights:** Check DST switching dates, View standard time dates, Supports global time zones, Simple and intuitive interface

**In-app purchases:** none


## Frequently asked questions

### Is Atomic Clock PRO free?

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

### Is Daylight Saving Time free?

Daylight Saving Time is free to download, with no in-app purchases.

### Which has better reviews, Atomic Clock PRO or Daylight Saving Time?

Daylight Saving Time is rated higher. Atomic Clock PRO averages 4.7 out of 5 from 10K ratings, while Daylight Saving Time averages 5.0 from 10 ratings.

### Do Atomic Clock PRO or Daylight Saving Time have ads?

Atomic Clock PRO shows ads; Daylight Saving Time does not.

### Which is updated more often, Atomic Clock PRO or Daylight Saving Time?

Atomic Clock PRO ships an update every 3 months, and Daylight Saving Time every 19 months. Most recently, Atomic Clock PRO was updated on October 11, 2026 and Daylight Saving Time on September 26, 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.*