# 勝率記録ノート vs SimpleSigma

The clearest difference is iOS requirement: 勝率記録ノート at 15.1 against SimpleSigma's 26.0. On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. 勝率記録ノート sells 1 one-off in-app purchase and SimpleSigma sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

勝率記録ノート ships an update every 2 months, SimpleSigma every 6 weeks. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 勝率記録ノート | SimpleSigma |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 63.0% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 7 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [hiyoshi kiyotaka](https://appshunter.io/developer/952244533) | [MUTSUAKI KIKUCHI](https://appshunter.io/developer/1874283283) |

## What reviewers say

### 勝率記録ノート

[App page](https://appshunter.io/ios/app/id1035299957)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 追加機能 | $1.99 | one-time |


### 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 |


## Frequently asked questions

### Is 勝率記録ノート free?

勝率記録ノート is free to download, with in-app purchases available.

### Is SimpleSigma free?

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

### Do 勝率記録ノート or SimpleSigma have ads?

Both 勝率記録ノート and SimpleSigma show ads.

### Which is updated more often, 勝率記録ノート or SimpleSigma?

勝率記録ノート ships an update every 2 months, and SimpleSigma every 6 weeks. Most recently, 勝率記録ノート was updated on October 17, 2026 and SimpleSigma on October 7, 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.*