# Sigma vs Pumpa Workout Log

The clearest difference is in-app purchases: Sigma at none against Pumpa Workout Log's 2. Sigma also leads on ratings volume (52 vs 2) and iOS requirement (14.0 vs 16.0). Pumpa Workout Log's advantage is review sentiment (100% vs 87%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Pumpa Workout Log sells 2 in-app purchases, starting at $3.99 per year. Sigma asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.4 for Sigma against 4.5 for Pumpa Workout Log. That said, the two scores are not equally well evidenced: Sigma has 52 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 87% of Sigma's written reviews are positive against 100% of Pumpa Workout Log's.

Sigma ships an update weekly, Pumpa Workout Log every 5 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Sigma | Pumpa Workout Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (52 ratings)](https://appshunter.io/ios/app/sigma-ai/id6743433033/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/pumpa-workout-log/id6764283984/reviews)** |
| Number of ratings | **52** | 2 |
| Positive reviews | 86.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Size | 231 MB | 74 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Chaoshi Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1520053656) | [晓平 曾](https://appshunter.io/developer/1894264195) |

## 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


### Pumpa Workout Log

[App page](https://appshunter.io/ios/app/pumpa-workout-log/id6764283984)

A clean and focused fitness log for various activities like strength training, cardio, and yoga. It offers detailed stats, training plans, and friend accountability without ads or personal data collection.

**Highlights:** 100+ exercise library with demos, Log 20+ workout types, Emoji calendar for workout history, Daily/monthly/yearly training stats, Training plans with one-tap check-ins, Friend accountability and reminders, Encrypted iCloud sync

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Yearly | $3.99 | per year |
| Pro Lifetime | $7.99 | one-time |


## Frequently asked questions

### Is Sigma free?

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

### Is Pumpa Workout Log free?

Pumpa Workout Log is free to download, with in-app purchases available.

### Which has better reviews, Sigma or Pumpa Workout Log?

Pumpa Workout Log is rated higher. Sigma averages 4.4 out of 5 from 52 ratings, while Pumpa Workout Log averages 4.5 from 2 ratings.

### Do Sigma or Pumpa Workout Log have ads?

Neither Sigma nor Pumpa Workout Log shows ads.

### Which is updated more often, Sigma or Pumpa Workout Log?

Sigma ships an update weekly, and Pumpa Workout Log every 5 days. Most recently, Sigma was updated on October 16, 2026 and Pumpa Workout Log 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.*