Atomic Clock PRO vs XVert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Atomic Clock PRO
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.
- Exact time from atomic clock
- Automatic time zone recognition
- Customizable background images
- Digital and analog clock modes
- Optional sound alerts
- Color customization
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Get accurate time on your iPhone and iPad by syncing with an official atomic clock time server. Download now for free! If you want exact time, a precise time reference, or an easy-to-read clock display, this app is designed for that. It automatically recognizes your time zone, lets you use one of your own photos as the background, and lets you switch between a digital display and a classic analog clock with a simple swipe. It is ideal as a personalized desk clock, a reliable travel companion, an everyday reference clock, or when you need exact time to set a mechanical watch accurately. Overview: - Accurate and precise time synced from an official atomic clock time server - Automatically recognizes your time zone and shows the current local time - Choose digital, analog, or combined analog and digital clock displays - Swipe to switch between clock displays - Resize the digital clock for a larger or smaller display - Includes time (hours, minutes, and seconds), date, and day of the week (optional) - Optional sound every second or every minute - Change clock and background colors - Use your own photos as background images - Choose atomic clock sync or your device's system clock - Option to keep the screen awake while the app is open - Works in portrait and landscape mode - For iPhone and iPad Helpful for: - A personalized desk clock at home or at work - Getting the correct local time while traveling - Setting a mechanical watch accurately - A clear reference clock when you want accurate, easy-to-read time PLEASE NOTE: You can switch between the analog and digital clock by swiping left or right across the clock. Disclaimer: Please note that whilst all reasonable care has been taken to make this application as accurate as possible we can not guarantee 100% accuracy. Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
XVert
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XVert – Custom Unit Converter Most unit converters give you the basics. XVert lets you build your own. XVert comes loaded with essential conversions across length, weight, temperature, volume, speed, and more, plus live currency exchange rates, but the real power is in the Formula Builder. Create custom formulas for any conversion that doesn't exist yet: fuel economy in obscure units, cooking ratios, workshop calculations, hobby-specific measurements. If you can express it as a formula, XVert can convert it. Features Live Currency Conversion - Convert between world currencies with up-to-date exchange rates, right alongside your other conversions Custom Formula Builder - Create multi-step conversion formulas for any unit pair imaginable Organized Categories - Group your formulas into color-coded categories, reordered exactly how you like Clean Conversion Interface - A smooth, dual-input design lets you type from either direction and see results instantly Adjustable Precision - Set decimal places to match how much detail you actually need Haptic Feedback - Satisfying, optional tactile response as you interact Built-in Formulas - Common conversions ready to use right out of the box No subscriptions. No ads. - Pay once, own it forever.
Screenshots
Verdict
The clearest difference is price: Atomic Clock PRO at Free against XVert's $1.99. Atomic Clock PRO also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.6). XVert's advantage is in-app purchases (none vs 2) and ads (none vs shown).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Atomic Clock PRO is free to download; XVert costs $1.99 up front. Atomic Clock PRO sells 2 in-app purchases, starting at $1.99 per month. XVert asks for nothing beyond the download.
Atomic Clock PRO ships an update every 3 months, XVert every 3 days. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.
| Parameter | Atomic Clock PRO | XVert |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.7 (10K ratings) — better | — |
| Positive reviews | 73.0% of reviews | — |
| Number of ratings | 10K — better | — |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 6 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Brachmann Online Marketing GmbH & Co. KG | Brigg Thorp |
Bugs and requests
Atomic Clock PRO
Reported bugs
3 issues- Second hand occasionally runs in reverse
- Digital clock display cuts off on some devices
- Inconsistent behavior when switching between clock types
Requested features
3 requests- Customizable clock face options
- Ability to set widget on home screen
- Sync with system clock to automatically update time
XVert
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Atomic Clock PRO
- Premium$1.991 Month
- Remove Ads$5.99
XVert
No in-app purchases








