# KeepStrong Gym Workout Planner vs Sigma

The clearest difference is in-app purchases: Sigma at none against KeepStrong Gym Workout Planner's 5. Sigma also leads on ads (none vs shown). KeepStrong Gym Workout Planner's advantage is rating (4.7 vs 4.5) and review sentiment (97% vs 87%). On price, ratings volume, update cadence and iOS requirement there is nothing between them.

Both are free to download. KeepStrong Gym Workout Planner sells 5 one-off in-app purchases. Sigma asks for nothing beyond the download.

KeepStrong Gym Workout Planner holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 40 and 56 respectively. Written reviews point the same way: 97% of KeepStrong Gym Workout Planner's written reviews are positive against 87% of Sigma's.

KeepStrong Gym Workout Planner ships an update every 6 days, Sigma weekly. Both last shipped on October 30, 2026.

## The numbers

| Metric | KeepStrong Gym Workout Planner | Sigma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (40 ratings)](https://appshunter.io/ios/app/keepstrong-gym-workout-planner/id1671099486/reviews)** | [4.5 (56 ratings)](https://appshunter.io/ios/app/sigma-ai/id6743433033/reviews) |
| Number of ratings | 40 | **56** |
| Positive reviews | **97.2% of reviews** | 86.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Freemium | **Free** |
| Size | 243 MB | 232 MB |
| Requires iOS | 15.5 | **14.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [春露 莫](https://appshunter.io/developer/1671089792) | [Chaoshi Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1520053656) |

## What reviewers say

### KeepStrong Gym Workout Planner

[App page](https://appshunter.io/ios/app/keepstrong-gym-workout-planner/id1671099486)

Build muscle and sculpt your body with guided workout plans and video demonstrations. Track your progress, log workouts, and monitor diet and body metrics. Access fitness knowledge and habit tracking features.

**Highlights:** Extensive exercise library with video demonstrations, Scientifically designed daily workout plans, Workout logging with detailed stats, Diet tracker for calorie and macronutrient intake, Body metrics tracking with progress graphs, Habit tracker and progress notes, Fitness Academy with articles and Q&A

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3Days Experience | $0.99 | one-time |
| Experience | $0.99 | one-time |
| Monthly | $4.99 | one-time |
| Yearly | $17.99 | one-time |
| Lifetime | $19.99 | one-time |


### Sigma

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

This app offers a distraction-free running experience with detailed daily, weekly, and monthly analysis of your runs. It visualizes your running data and creates a map diary of your routes and moods, with AI-powered personalized coaching based on your history.

**Highlights:** Distraction-free running recording, Daily, weekly, monthly analysis, Map diary of routes and moods, AI-powered personalized coaching, Visualized calorie consumption, Data migration from multiple devices

**In-app purchases:** none


## Frequently asked questions

### Is KeepStrong Gym Workout Planner free?

KeepStrong Gym Workout Planner is free to download, with in-app purchases available.

### Is Sigma free?

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

### Which has better reviews, KeepStrong Gym Workout Planner or Sigma?

KeepStrong Gym Workout Planner is rated higher. KeepStrong Gym Workout Planner averages 4.7 out of 5 from 40 ratings, while Sigma averages 4.5 from 56 ratings.

### Do KeepStrong Gym Workout Planner or Sigma have ads?

KeepStrong Gym Workout Planner shows ads; Sigma does not.

### Which is updated more often, KeepStrong Gym Workout Planner or Sigma?

KeepStrong Gym Workout Planner ships an update every 6 days, and Sigma weekly. Most recently, KeepStrong Gym Workout Planner was updated on October 30, 2026 and Sigma on October 30, 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.*