# Overlap vs World Population Simulator

Overlap and World Population Simulator both sit at 4.8 stars, but that hides the real split: 100% of World Population Simulator's written reviews are positive against 67% of Overlap's. Overlap's advantage is ratings volume (873 vs 229). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Overlap holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 873 and 229 respectively. Written reviews complicate that: 67% of Overlap's written reviews are positive against 100% of World Population Simulator's, so the app with the better star average is not the one people write more warmly about.

Overlap ships an update every 3 months, World Population Simulator every 5 months. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Overlap | World Population Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (873 ratings)](https://appshunter.io/ios/app/overlap-world-clock/id1516950324/reviews)** | [4.6 (229 ratings)](https://appshunter.io/ios/app/world-population-simulator/id1535883562/reviews) |
| Number of ratings | **873** | 229 |
| Positive reviews | 67.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 71 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bonobo](https://appshunter.io/developer/666155611) | [仕清 刘](https://appshunter.io/developer/1531464103) |

## 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


### World Population Simulator

[App page](https://appshunter.io/ios/app/world-population-simulator/id1535883562)

Explore global population dynamics and country-specific data. This application simulates population growth worldwide and provides comprehensive statistics for over 200 countries, including economic, social, and demographic indicators.

**Highlights:** Population growth simulation, Country statistics, Economic indicators, Social indicators, Demographic data, Learn about countries

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Overlap free?

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

### Is World Population Simulator free?

World Population Simulator is free to download, with no in-app purchases.

### Which has better reviews, Overlap or World Population Simulator?

Overlap is rated higher. Overlap averages 4.8 out of 5 from 873 ratings, while World Population Simulator averages 4.6 from 229 ratings.

### Do Overlap or World Population Simulator have ads?

Neither Overlap nor World Population Simulator shows ads.

### Which is updated more often, Overlap or World Population Simulator?

Overlap ships an update every 3 months, and World Population Simulator every 5 months. Most recently, Overlap was updated on October 25, 2026 and World Population Simulator on October 22, 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.*