# Newborn Tracker ' vs World Clock

The clearest difference is update cadence: World Clock at every 3 weeks against Newborn Tracker ''s every 3 months. Newborn Tracker ''s advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Newborn Tracker ' sells 2 in-app purchases, starting at $7.99 per 7 days and World Clock sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Newborn Tracker ' ships an update every 3 months, World Clock every 3 weeks. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Newborn Tracker ' | World Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/world-clocktimezone-converter/id6759943378/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 59 MB | 32 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Qualitechnologies LLC](https://appshunter.io/developer/1855338819) | [Apphaze](https://appshunter.io/developer/1856021247) |

## What reviewers say

### Newborn Tracker '

[App page](https://appshunter.io/ios/app/newborn-tracker/id6756232562)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Yearly Subscription | $34.99 | per year |


### World Clock

[App page](https://appshunter.io/ios/app/world-clocktimezone-converter/id6759943378)

Easily track time across multiple cities with visual gradients and an intuitive converter. Organize contacts by time zone, calculate dates, and utilize customizable widgets. Works offline for core functionality.

**Highlights:** Instant time conversion with visual slider, Hourly timeline grid with overlapping work times, Organize contacts into groups by time zone, Date and duration calculator, Customizable widgets for home screen, Offline functionality for core features

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| World Clock Pro Monthly | $4.99 | per month |
| World Clock Pro Yearly | $19.99 | per year |
| World Clock Pro Lifetime Access | $29.99 | one-time |


## Frequently asked questions

### Is Newborn Tracker ' free?

Newborn Tracker ' is free to download, with in-app purchases available.

### Is World Clock free?

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

### Do Newborn Tracker ' or World Clock have ads?

Neither Newborn Tracker ' nor World Clock shows ads.

### Which is updated more often, Newborn Tracker ' or World Clock?

Newborn Tracker ' ships an update every 3 months, and World Clock every 3 weeks. Most recently, Newborn Tracker ' was updated on October 2, 2026 and World Clock on October 16, 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.*