# Atomic Clock PRO vs TrumpTime Date Calculator

The clearest difference is in-app purchases: TrumpTime Date Calculator at none against Atomic Clock PRO's 2. TrumpTime Date Calculator also leads on ads (none vs shown) and update cadence (every 10 days vs every 3 months). Atomic Clock PRO's advantage is ratings volume (10K vs 799). On price, rating, 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. TrumpTime Date Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Atomic Clock PRO against 4.7 for TrumpTime Date Calculator. That said, the two scores are not equally well evidenced: Atomic Clock PRO has 10K ratings behind it against 799, so its average is the more settled of the two. Written reviews are what separate them: 73% of Atomic Clock PRO's written reviews are positive against 71% of TrumpTime Date Calculator's.

Atomic Clock PRO ships an update every 3 months, TrumpTime Date Calculator every 10 days. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | TrumpTime Date Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews) | [4.7 (799 ratings)](https://appshunter.io/ios/app/trumptime-date-calculator/id1291886305/reviews) |
| Number of ratings | **10K** | 799 |
| Positive reviews | **73.0% of reviews** | 71.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 13 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brachmann Online Marketing GmbH & Co. KG](https://appshunter.io/developer/682848918) | [Jonathan Blau](https://appshunter.io/developer/1218003229) |

## 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


### TrumpTime Date Calculator

[App page](https://appshunter.io/ios/app/trumptime-date-calculator/id1291886305)

Calculate the duration of a presidential term, including elapsed days, remaining days, and future projections. It also functions as a general date calculator for any two dates or time periods.

**Highlights:** Calculate elapsed and remaining presidential term days, Project future term lengths, General date calculator for any two dates, Calculate dates based on time periods, Progress bar visualization, Icon badge for daily updates, Copyable text descriptions of time calculations

**Features:** macOS Compatibility

**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 TrumpTime Date Calculator free?

TrumpTime Date Calculator is free to download, with no in-app purchases.

### Which has better reviews, Atomic Clock PRO or TrumpTime Date Calculator?

Atomic Clock PRO and TrumpTime Date Calculator are both rated 4.7 out of 5 on the App Store, from 10K and 799 ratings respectively.

### Do Atomic Clock PRO or TrumpTime Date Calculator have ads?

Atomic Clock PRO shows ads; TrumpTime Date Calculator does not.

### Which is updated more often, Atomic Clock PRO or TrumpTime Date Calculator?

Atomic Clock PRO ships an update every 3 months, and TrumpTime Date Calculator every 10 days. Most recently, Atomic Clock PRO was updated on October 18, 2026 and TrumpTime Date Calculator on October 17, 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.*