# Sigma vs SportNote

The clearest difference is price: Sigma at Free against SportNote's $1.99. Sigma also leads on iOS requirement (14.0 vs 17.0). SportNote's advantage is update cadence (daily vs weekly). On ads, in-app purchases and device support there is nothing between them.

Sigma is free to download; SportNote costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sigma ships an update weekly, SportNote daily. The most recent releases landed on October 25, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Sigma | SportNote |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.5 (55 ratings)](https://appshunter.io/ios/app/sigma-ai/id6743433033/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | 86.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free | — |
| Size | 231 MB | 17 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 9+ |
| Developer | [Chaoshi Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1520053656) | [吉强 何](https://appshunter.io/developer/1896433143) |

## What reviewers say

### Sigma

[App page](https://appshunter.io/ios/app/sigma-ai/id6743433033)

This app offers a clean and engaging running experience with detailed analysis and personalized AI coaching. Track your runs, visualize your progress, and collect memories of your journeys on a unique map diary.

**Highlights:** Ad-free running experience, Daily, weekly, and monthly analysis, Map diary of runs and moods, AI-powered personalized coaching, Visualized calorie consumption, Data migration from popular wearables

**In-app purchases:** none


### SportNote

[App page](https://appshunter.io/ios/app/sportnote/id6767524489)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sigma free?

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

### Is SportNote free?

SportNote costs $1.99, with no in-app purchases.

### Do Sigma or SportNote have ads?

Neither Sigma nor SportNote shows ads.

### Which is updated more often, Sigma or SportNote?

Sigma ships an update weekly, and SportNote daily. Most recently, Sigma was updated on October 25, 2026 and SportNote on October 4, 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.*