# FLEX Stronger vs Factors

The clearest difference is in-app purchases: FLEX Stronger at none against Factors's 2. Factors's advantage is update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Factors sells 2 in-app purchases, starting at $9.99 per month. FLEX Stronger asks for nothing beyond the download.

FLEX Stronger ships an update monthly, Factors every 2 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | FLEX Stronger | Factors |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 56 MB | 74 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Kinetic Performance](https://appshunter.io/developer/343232407) | [TrainingFactors](https://appshunter.io/developer/1809153747) |

## 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 a professional athlete. It automates workouts, offers video recording with data overlay, and facilitates group training and workout sharing.

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Factors

[App page](https://appshunter.io/ios/app/factors-cycling-training-app/id6744746563)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $99.99 | per year |


## Frequently asked questions

### Is FLEX Stronger free?

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

### Is Factors free?

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

### Do FLEX Stronger or Factors have ads?

Neither FLEX Stronger nor Factors shows ads.

### Which is updated more often, FLEX Stronger or Factors?

FLEX Stronger ships an update monthly, and Factors every 2 weeks. Most recently, FLEX Stronger was updated on November 6, 2026 and Factors on October 30, 2026.

---

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