# Overlap vs Mon P4

The clearest difference is in-app purchases: Overlap at none against Mon P4's 2. Overlap also leads on device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Mon P4 sells 2 in-app purchases, starting at $1.99 per month. Overlap asks for nothing beyond the download.

Overlap ships an update every 3 months, Mon P4 every 6 weeks. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Overlap | Mon P4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (849 ratings)](https://appshunter.io/ios/app/overlap-world-clock/id1516950324/reviews)** | — |
| Number of ratings | **849** | — |
| Positive reviews | 67.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 71 MB | 44 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bonobo](https://appshunter.io/developer/666155611) | [Lounes ait chalalet](https://appshunter.io/developer/6798292664) |

## What reviewers say

### Overlap

[App page](https://appshunter.io/ios/app/overlap-world-clock/id1516950324)

Easily find optimal meeting times across different time zones with a visual graph. Set custom availability for each location and sync with your calendar to avoid scheduling conflicts. Share convenient times directly from the app.

**Highlights:** Visual Overlap Graph for meeting times, Customizable availability hours per time zone, Calendar event integration, Multiple time zone display, Time zone renaming, Lock Screen Standby Mode widget

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Elegant and intuitive interface
- 🚀 Helpful for coordinating meetings across time zones
- 👍 Useful for tracking time differences globally
- 👍 Simple and easy to use
- 👍 Beautiful and sleek design

**What reviewers complain about**

- 🐛 Widget not working
- 🐛 Timezone data not always accurate
- 🐛 Duplicate timezone entries
- 🐛 App crashes and freezes
- 🔋 High CPU usage on Mac

**Reported bugs**

- Timezone data not updating correctly
- Inability to delete unwanted timezones
- Inconsistent behavior across platforms
- Typing issues on Mac version

**Requested features**

- Add option to reorder timezones
- Implement 24-hour clock display
- Allow customization of colors and backgrounds
- Integrate with calendar for scheduling
- Add weather information for each timezone


### Mon P4

[App page](https://appshunter.io/ios/app/mon-p4/id6806767631)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium mensuel | $1.99 | per month |
| Premium annuel | $17.99 | per year |


## Frequently asked questions

### Is Overlap free?

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

### Is Mon P4 free?

Mon P4 is free to download, with in-app purchases available.

### Do Overlap or Mon P4 have ads?

Neither Overlap nor Mon P4 shows ads.

### Which is updated more often, Overlap or Mon P4?

Overlap ships an update every 3 months, and Mon P4 every 6 weeks. Most recently, Overlap was updated on October 19, 2026 and Mon P4 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.*