# OffOf vs Overlap

The clearest difference is price: Overlap at Free against OffOf's $0.99. Overlap also leads on update cadence (every 3 months vs every 59 months) and ratings volume (849 vs 11). OffOf's advantage is chart position (#188 vs unranked). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Overlap is free to download; OffOf costs $0.99 up front. 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. That said, the two scores are not equally well evidenced: Overlap has 849 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 61% of OffOf's written reviews are positive against 67% of Overlap's.

OffOf ships an update every 59 months, Overlap every 3 months. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | OffOf | Overlap |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.6 (11 ratings)](https://appshunter.io/ios/app/offof/id883081837/reviews) | **[4.8 (849 ratings)](https://appshunter.io/ios/app/overlap-world-clock/id1516950324/reviews)** |
| Number of ratings | 11 | **849** |
| Positive reviews | 60.7% of reviews | **67.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 59 months | **Every 3 months** |
| Monetization | Free | Free |
| Best chart rank | **#188** | — |
| Size | 5 MB | 71 MB |
| Requires iOS | 17.2 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch, Vision Pro** | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Daeo Corp. Software](https://appshunter.io/developer/440991527) | [Bonobo](https://appshunter.io/developer/666155611) |

## What reviewers say

### OffOf

[App page](https://appshunter.io/ios/app/offof/id883081837)

**Currently charting:** #188 Top Paid · Utilities (US App Store)

This app simplifies percentage calculations for shopping discounts and finding a percentage of a number. It offers a clean interface with satisfying sound and haptic feedback for a delightful user experience.

**Highlights:** Calculate percentage OFF, Calculate percentage OF, Shopping discount calculations, Mechanical keyboard sounds, Haptic feedback

**Features:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

- ✨ Gorgeous design
- 👍 Simple and useful utility
- 💯 Best percentage calculator
- ✅ Does what it says
- 💡 Beautifully minimalist

**What reviewers complain about**

- ❌ Not updated
- ⚠️ Abandoned app
- 📉 No longer works
- 💔 Incompatible with iOS
- ⏳ Outdated

**Reported bugs**

- Not compatible with new iOS updates
- App no longer opens/works
- Freezes and force closes

**Requested features**

- Make it a fully functional calculator
- Update to new software/iOS versions
- Show final price after discount
- Auto clear fields on tap
- Update for X screens


### 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


## Frequently asked questions

### Is OffOf free?

OffOf costs $0.99, with no in-app purchases.

### Is Overlap free?

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

### Which has better reviews, OffOf or Overlap?

Overlap is rated higher. OffOf averages 4.6 out of 5 from 11 ratings, while Overlap averages 4.8 from 849 ratings.

### Do OffOf or Overlap have ads?

Neither OffOf nor Overlap shows ads.

### Which is updated more often, OffOf or Overlap?

OffOf ships an update every 59 months, and Overlap every 3 months. Most recently, OffOf was updated on September 22, 2026 and Overlap on September 24, 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.*