# StrengthLog vs Flux

The clearest difference is ratings volume: StrengthLog at 3.7K against Flux's 1. StrengthLog also leads on device support (4 vs 1) and iOS requirement (15.0 vs 26.2). Flux's advantage is review sentiment (100% vs 88%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. StrengthLog sells 3 in-app purchases, starting at $16.90 per month and Flux sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for StrengthLog against 5.0 for Flux. That said, the two scores are not equally well evidenced: StrengthLog has 3.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 88% of StrengthLog's written reviews are positive against 100% of Flux's.

StrengthLog ships an update every 6 days, Flux weekly. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | StrengthLog | Flux |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (3.7K ratings)](https://appshunter.io/ios/app/strengthlog-workout-tracker/id1434229662/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flux-workout-tracker/id6758521633/reviews)** |
| Number of ratings | **3.7K** | 1 |
| Positive reviews | 88.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Freemium | Freemium |
| Size | 158 MB | 47 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Styrkelabbet AB](https://appshunter.io/developer/1434229661) | [Digital Flux Ltd](https://appshunter.io/developer/1873322568) |

## What reviewers say

### StrengthLog

[App page](https://appshunter.io/ios/app/strengthlog-workout-tracker/id1434229662)

Track your workouts, analyze progress, and discover proven strength training programs. Log unlimited workouts, access a vast exercise library, and set goals. Upgrade for advanced statistics and premium programs.

**Highlights:** Unlimited workout logging, Extensive exercise library with video instructions, Proven strength training programs, Progress analysis and statistics, Goal setting and streak tracking, Plate calculator and rest timer, Apple Health integration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StrengthLog Premium - 1 month | $16.90 | per month |
| StrengthLog Premium - 3 months | $37.90 | per 3 months |
| StrengthLog Premium - 1 year | $109.00 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Intuitive interface
- 💪 Comprehensive workout tracking
- 📊 Detailed progress analytics
- 🎥 Helpful exercise videos

**What reviewers complain about**

- 🔍 Cluttered main page
- 🐛 Occasional bugs and crashes
- 💰 Premium subscription is expensive
- ⌚ Apple Watch app issues

**Reported bugs**

- Disappearing workout data
- Inability to clear/reset workout history
- Inconsistent behavior when planning workouts for the same day

**Requested features**

- Ability to save and edit custom workout plans
- Seamless integration with Apple Health
- Community features like challenges and leaderboards
- More personalized workout recommendations


### Flux

[App page](https://appshunter.io/ios/app/flux-workout-tracker/id6758521633)

This app helps you train smarter by generating personalized workouts based on your goals, available equipment, and time. It uniquely adapts to your progress over time, keeping all your data on your device for privacy. Track every set, rep, and weight with ease, and benefit from advanced features like progressive overload and fatigue-aware training.

**Highlights:** Personalized workout generation, Customizable routines and exercises, Real-time adaptive changes, Progressive overload and periodisation, Fatigue-aware training support, Apple Health integration, Data export

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flux Pro : 1 Month | $2.99 | per month |
| Flux Pro : 12 Month | $19.99 | per year |
| Flux Pro : Lifetime Pass - Founder | $49.99 | one-time |
| Flux Pro : Lifetime Pass | $59.99 | one-time |


## Frequently asked questions

### Is StrengthLog free?

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

### Is Flux free?

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

### Which has better reviews, StrengthLog or Flux?

Flux is rated higher. StrengthLog averages 4.9 out of 5 from 3.7K ratings, while Flux averages 5.0 from 1 ratings.

### Do StrengthLog or Flux have ads?

Neither StrengthLog nor Flux shows ads.

### Which is updated more often, StrengthLog or Flux?

StrengthLog ships an update every 6 days, and Flux weekly. Most recently, StrengthLog was updated on October 22, 2026 and Flux on October 21, 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.*