# FLEX Stronger vs Vigor Strength & Conditioning

The clearest difference is iOS requirement: FLEX Stronger at 15.0 against Vigor Strength & Conditioning's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FLEX Stronger ships an update monthly, Vigor Strength & Conditioning every 5 weeks. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | FLEX Stronger | Vigor Strength & Conditioning |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/flex-stronger/id1452436164/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 56 MB | 27 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Kinetic Performance](https://appshunter.io/developer/343232407) | [Jason Bryant](https://appshunter.io/developer/1844702892) |

## What reviewers say

### FLEX Stronger

[App page](https://appshunter.io/ios/app/flex-stronger/id1452436164)

This app revolutionizes weight training by syncing with a sensor to provide real-time performance feedback. Track, manage, and review your training like elite athletes, with automated workouts and group training options. It offers detailed metrics, video recording with data overlay, and a community feature for sharing and downloading workouts.

**Highlights:** Real-time performance feedback, Velocity-based training (VBT), Automated workouts, Group training for up to three people, Video recording with synced data, 1RM prediction, Workout creation and sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### Vigor Strength & Conditioning

[App page](https://appshunter.io/ios/app/vigor-strength-and-conditioning/id6754718468)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FLEX Stronger free?

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

### Is Vigor Strength & Conditioning free?

Vigor Strength & Conditioning is free to download, with no in-app purchases.

### Do FLEX Stronger or Vigor Strength & Conditioning have ads?

Neither FLEX Stronger nor Vigor Strength & Conditioning shows ads.

### Which is updated more often, FLEX Stronger or Vigor Strength & Conditioning?

FLEX Stronger ships an update monthly, and Vigor Strength & Conditioning every 5 weeks. Most recently, FLEX Stronger was updated on November 2, 2026 and Vigor Strength & Conditioning on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*