# Cartesian Capture vs Summe Calculator

The clearest difference is price: Summe Calculator at Free against Cartesian Capture's $4.99. Cartesian Capture's advantage is in-app purchases (none vs 1) and update cadence (every 2 days vs fortnightly). On ads, device support and iOS requirement there is nothing between them.

Summe Calculator is free to download; Cartesian Capture costs $4.99 up front. Summe Calculator sells 1 one-off in-app purchase. Cartesian Capture asks for nothing beyond the download.

Cartesian Capture ships an update every 2 days, Summe Calculator fortnightly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Cartesian Capture | Summe Calculator |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/summe-calculator/id6798785168/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Size | 4 MB | 10 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Karen Anderson](https://appshunter.io/developer/6791601488) | [ESLIP OU](https://appshunter.io/developer/6798785350) |

## What reviewers say

### Cartesian Capture

[App page](https://appshunter.io/ios/app/cartesian-capture/id6791601486)

**Features:** macOS Compatibility

**In-app purchases:** none


### Summe Calculator

[App page](https://appshunter.io/ios/app/summe-calculator/id6798785168)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Summe+ | $5.99 | one-time |


## Frequently asked questions

### Is Cartesian Capture free?

Cartesian Capture costs $4.99, with no in-app purchases.

### Is Summe Calculator free?

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

### Do Cartesian Capture or Summe Calculator have ads?

Neither Cartesian Capture nor Summe Calculator shows ads.

### Which is updated more often, Cartesian Capture or Summe Calculator?

Cartesian Capture ships an update every 2 days, and Summe Calculator fortnightly. Most recently, Cartesian Capture was updated on October 14, 2026 and Summe Calculator on October 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.*