# PP跑步节拍器 vs Sigma

The clearest difference is in-app purchases: Sigma at none against PP跑步节拍器's 1. Sigma also leads on update cadence (weekly vs every 20 months) and iOS requirement (14.0 vs 16.6). PP跑步节拍器's advantage is review sentiment (100% vs 87%). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. PP跑步节拍器 sells 1 one-off in-app purchase. Sigma asks for nothing beyond the download.

PP跑步节拍器 ships an update every 20 months, Sigma weekly. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PP跑步节拍器 | Sigma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (51 ratings)](https://appshunter.io/ios/app/sigma-ai/id6743433033/reviews)** |
| Number of ratings | — | **51** |
| Positive reviews | **100.0% of reviews** | 86.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 20 months | **Weekly** |
| Monetization | Free | Free |
| Size | 2 MB | 229 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | +4 | 12+ |
| Developer | [鸽 李](https://appshunter.io/developer/1754752242) | [Chaoshi Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1520053656) |

## What reviewers say

### PP跑步节拍器

[App page](https://appshunter.io/ios/app/pp/id6739798056)

This tool helps runners find their optimal cadence with a visual metronome and professional training plans. It offers precise tempo control, distinct footstep sounds, and real-time performance tracking to improve efficiency and reduce injury risk.

**Highlights:** Precise cadence control (60-360 BPM), Left/right foot separation sound effects, 9 professional training plans, Real-time data statistics, Training progress sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PP跑步节拍器会员版 | $0.99 | one-time |


### 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


## Frequently asked questions

### Is PP跑步节拍器 free?

PP跑步节拍器 is free to download, with in-app purchases available.

### Is Sigma free?

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

### Do PP跑步节拍器 or Sigma have ads?

Neither PP跑步节拍器 nor Sigma shows ads.

### Which is updated more often, PP跑步节拍器 or Sigma?

PP跑步节拍器 ships an update every 20 months, and Sigma weekly. Most recently, PP跑步节拍器 was updated on October 3, 2026 and Sigma 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.*