# prismCalc vs Web Live Activities

The clearest difference is in-app purchases: Web Live Activities at none against prismCalc's 1. Web Live Activities also leads on iOS requirement (18.0 vs 26.0). prismCalc's advantage is device support (4 vs 2). On price, update cadence and ads there is nothing between them.

Both are free to download. prismCalc sells 1 one-off in-app purchase. Web Live Activities asks for nothing beyond the download.

prismCalc ships an update weekly, Web Live Activities every 10 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | prismCalc | Web Live Activities |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/prismcalc/id6756225072/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Freemium | — |
| Size | 70 MB | 8 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Patrick LaClair](https://appshunter.io/developer/1859344139) | [Eldrbreak](https://appshunter.io/developer/1685770114) |

## What reviewers say

### prismCalc

[App page](https://appshunter.io/ios/app/prismcalc/id6756225072)

This app offers a visually appealing and functional calculator for everyday financial tasks like splitting bills, calculating discounts, and comparing loan payments. It provides live calculation previews, a history of recent results, and various everyday tools.

**Highlights:** Live calculation preview, History of recent results, Tip and split bill calculator, Discount calculator, Loan calculator, Unit converter, Customizable themes

**Features:** Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| prismCalc Pro | $2.99 | one-time |


### Web Live Activities

[App page](https://appshunter.io/ios/app/web-live-activities/id6782481938)

**In-app purchases:** none


## Frequently asked questions

### Is prismCalc free?

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

### Is Web Live Activities free?

Web Live Activities is free to download, with no in-app purchases.

### Do prismCalc or Web Live Activities have ads?

Neither prismCalc nor Web Live Activities shows ads.

### Which is updated more often, prismCalc or Web Live Activities?

prismCalc ships an update weekly, and Web Live Activities every 10 days. Most recently, prismCalc was updated on October 24, 2026 and Web Live Activities on October 28, 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.*