# Calculator vs Lumen

The clearest difference is price: Lumen at Free against Calculator's $0.99. Calculator's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On ads there is nothing between them.

Lumen is free to download; Calculator costs $0.99 up front. Lumen sells 3 in-app purchases, starting at $4.99 per month. Calculator asks for nothing beyond the download.

## The numbers

| Metric | Calculator | Lumen |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | — |
| Size | 3 MB | 3 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Hemal Modi](https://appshunter.io/developer/1522352514) | [JI HOON LEE](https://appshunter.io/developer/484403986) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-watch/id1602218883)

A straightforward calculator designed for Apple Watch, featuring a clear display and large buttons for easy operation. It handles basic, scientific, and tip calculations efficiently.

**Highlights:** Clear display, Large buttons, Basic calculations, Scientific calculations, Tip calculations, Apple Watch optimized

**Features:** Apple Watch app

**In-app purchases:** none


### Lumen

[App page](https://appshunter.io/ios/app/lumen-pro-camera/id6790338192)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lumen Pro Monthly | $4.99 | per month |
| Lumen Pro Yearly | $19.99 | per year |
| Lumen Pro Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is Calculator free?

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

### Is Lumen free?

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

### Do Calculator or Lumen have ads?

Neither Calculator nor Lumen shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*