# StrengthCharts vs Iron Revolution

The clearest difference is in-app purchases: Iron Revolution at none against StrengthCharts's 3. Iron Revolution also leads on device support (4 vs 2). StrengthCharts's advantage is update cadence (every 3 days vs every 2 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. StrengthCharts sells 3 in-app purchases, starting at $2.99 per month. Iron Revolution asks for nothing beyond the download.

StrengthCharts ships an update every 3 days, Iron Revolution every 2 months. The most recent releases landed on October 31, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | StrengthCharts | Iron Revolution |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/strengthcharts/id6761199060/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 191 MB |
| Requires iOS | 16.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [CAMERON JOSEPH KHAMI](https://appshunter.io/developer/1888242302) | [Iron Revolution LLC](https://appshunter.io/developer/1896596936) |

## What reviewers say

### StrengthCharts

[App page](https://appshunter.io/ios/app/strengthcharts/id6761199060)

Track your gym progress with detailed analytics and compare your strength levels against friends. Log your personal records, see your ranking across various exercises, and compete on leaderboards. Features include PR tracking, tier systems, and body measurement trends.

**Highlights:** Log personal records (PRs), Estimated 1-rep max calculation, Strength tier ranking system, Friend leaderboards, Body measurement tracking, Workout session logging, Data export

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $2.99 | per month |
| StrengthCharts Pro Yearly | $24.99 | per year |
| StrengthCharts Pro Lifetime | $69.99 | one-time |


### Iron Revolution

[App page](https://appshunter.io/ios/app/iron-revolution/id6768696063)

**Features:** Apple Wallet, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is StrengthCharts free?

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

### Is Iron Revolution free?

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

### Do StrengthCharts or Iron Revolution have ads?

Neither StrengthCharts nor Iron Revolution shows ads.

### Which is updated more often, StrengthCharts or Iron Revolution?

StrengthCharts ships an update every 3 days, and Iron Revolution every 2 months. Most recently, StrengthCharts was updated on October 31, 2026 and Iron Revolution on September 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.*