# SimpleSigma vs StreckenProfi

The clearest difference is in-app purchases: StreckenProfi at none against SimpleSigma's 2. StreckenProfi also leads on ads (none vs shown) and update cadence (weekly vs every 6 weeks). On price and device support there is nothing between them.

Both are free to download. SimpleSigma sells 2 in-app purchases, starting at $2.99 per month. StreckenProfi asks for nothing beyond the download.

SimpleSigma ships an update every 6 weeks, StreckenProfi weekly. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SimpleSigma | StreckenProfi |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 18 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [MUTSUAKI KIKUCHI](https://appshunter.io/developer/1874283283) | [Pedro Leandro Hemme](https://appshunter.io/developer/1857416670) |

## What reviewers say

### SimpleSigma

[App page](https://appshunter.io/ios/app/simplesigma/id1522264347)

This app offers a versatile calculator with three distinct table types for various needs, from simple sums to complex quantity-based calculations. It features intuitive input, auto-saving, and CSV export. An optional Pro version removes ads, unlocks unlimited tables, and adds advanced statistics and OCR receipt scanning.

**Highlights:** Three distinct table types (Simple, Duplex, Shopping), Auto-totaling and quick sum calculations, Swipe keyboard for cell navigation, CSV data export, Auto-save functionality, Optional Pro version with advanced features

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimpleSigma Pro (Monthly) | $2.99 | per month |
| SimpleSigma Pro (Yearly) | $29.99 | per year |


### StreckenProfi

[App page](https://appshunter.io/ios/app/streckenprofi/id6782889632)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SimpleSigma free?

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

### Is StreckenProfi free?

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

### Do SimpleSigma or StreckenProfi have ads?

SimpleSigma shows ads; StreckenProfi does not.

### Which is updated more often, SimpleSigma or StreckenProfi?

SimpleSigma ships an update every 6 weeks, and StreckenProfi weekly. Most recently, SimpleSigma was updated on October 7, 2026 and StreckenProfi on October 12, 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.*