# Gravity Fitness vs Sentinel Method

The clearest difference is in-app purchases: Sentinel Method at none against Gravity Fitness's 2. Sentinel Method also leads on device support (4 vs 2) and iOS requirement (13.0 vs 15.6). On price, update cadence and ads there is nothing between them.

Both are free to download. Gravity Fitness sells 2 in-app purchases, starting at $7.99 per month. Sentinel Method asks for nothing beyond the download.

Gravity Fitness ships an update monthly, Sentinel Method every 6 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Gravity Fitness | Sentinel Method |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/gravity-fitness/id1641216252/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 94.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 77 MB | 161 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Born Active Limited](https://appshunter.io/developer/1641216254) | [Remote Coach Ltd](https://appshunter.io/developer/1457588518) |

## What reviewers say

### Gravity Fitness

[App page](https://appshunter.io/ios/app/gravity-fitness/id1641216252)

Master calisthenics and bodyweight exercises with this comprehensive training app. It offers goal-led programs, individual workouts, and skill-specific sessions for all fitness levels, from beginners to experts. Train effectively without needing gym equipment.

**Highlights:** Goal-led training programs, Individual workouts, Skills sessions, Exercise library, Coach-led videos, Community forum

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Subscription | $7.99 | per month |
| Premium Yearly Subscription | $59.99 | per year |


### Sentinel Method

[App page](https://appshunter.io/ios/app/sentinel-method/id6478960888)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Fitness free?

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

### Is Sentinel Method free?

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

### Do Gravity Fitness or Sentinel Method have ads?

Neither Gravity Fitness nor Sentinel Method shows ads.

### Which is updated more often, Gravity Fitness or Sentinel Method?

Gravity Fitness ships an update monthly, and Sentinel Method every 6 weeks. Most recently, Gravity Fitness was updated on November 3, 2026 and Sentinel Method on October 25, 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.*