# Ora vs The Calculator

The clearest difference is update cadence: The Calculator at every 6 days against Ora's every 2 months. The Calculator also leads on iOS requirement (16.6 vs 18.0). Ora's advantage is ratings volume (71 vs 2) and device support (5 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Ora sells 3 one-off in-app purchases and The Calculator sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Ora against 5.0 for The Calculator. That said, the two scores are not equally well evidenced: Ora has 71 ratings behind it against 2, so its average is the more settled of the two.

Ora ships an update every 2 months, The Calculator every 6 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Ora | The Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (71 ratings)](https://appshunter.io/ios/app/ora-world-clock/id6502857758/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/the-calculator-notes-and-units/id6745772251/reviews)** |
| Number of ratings | **71** | 2 |
| Positive reviews | 85.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 103 MB | 17 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | **iPhone, iPad, Mac, Apple Watch, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dan Eden](https://appshunter.io/developer/508167369) | [YiDe Liu](https://appshunter.io/developer/1813803093) |

## What reviewers say

### Ora

[App page](https://appshunter.io/ios/app/ora-world-clock/id6502857758)

Visualize global times on an interactive globe. This app allows you to see the current time in various locations worldwide and even travel through time to check past or future times. It's ideal for professionals working across time zones or anyone tracking international events.

**Highlights:** Interactive 3D globe display, View time in multiple global locations, Time travel feature to see past/future times, Useful for cross-time zone work, Track international events

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small tip | $1.99 | one-time |
| Medium tip | $5.99 | one-time |
| Large tip | $12.99 | one-time |

**What reviewers like**

- 👍 Easy to use interface
- 💡 Innovative time travel feature
- 🌍 Useful for multiple time zones
- ✨ Beautifully designed app
- 🚀 Smooth performance

**What reviewers complain about**

- 🐛 Widget time lag
- 🐛 Widget not updating
- 🐛 Widget shows incorrect time
- 🐛 Widget time rounded
- 🐛 Slider not precise

**Reported bugs**

- Widget not reloading or working
- Widget time is not up to date
- Widget time is out of sync
- Widget doesn't show added countries
- Widget displays template without timezones

**Requested features**

- Add 24-hour format
- Type in a specific time for conversion
- Support for Japanese language
- Rotate dial for time zone adjustment
- iCloud sync of added cities


### The Calculator

[App page](https://appshunter.io/ios/app/the-calculator-notes-and-units/id6745772251)

This app combines a powerful calculator with a note-taking feature, allowing you to document calculations as you perform them. It also offers unit and currency conversions, with customizable appearance and settings.

**Highlights:** Integrated notepad for documenting calculations, Unit and currency conversion, Basic, scientific, and conversion calculators, Customizable appearance (light, dark, black), Adjustable number formats and decimal places, History with attachable notes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per month |
| Premium | $29.99 | per year |
| Premium | $9.99 | one-time |


## Frequently asked questions

### Is Ora free?

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

### Is The Calculator free?

The Calculator is free to download, with in-app purchases available.

### Which has better reviews, Ora or The Calculator?

The Calculator is rated higher. Ora averages 4.9 out of 5 from 71 ratings, while The Calculator averages 5.0 from 2 ratings.

### Do Ora or The Calculator have ads?

Neither Ora nor The Calculator shows ads.

### Which is updated more often, Ora or The Calculator?

Ora ships an update every 2 months, and The Calculator every 6 days. Most recently, Ora was updated on November 4, 2026 and The Calculator on November 5, 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.*