# K PILATES vs StrengthCharts

The clearest difference is in-app purchases: K PILATES at none against StrengthCharts's 3. StrengthCharts's advantage is update cadence (every 3 days vs every 11 months) and ratings volume (9 vs 2). On price, rating, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for K PILATES against 5.0 for StrengthCharts. Both are backed by a comparable volume of ratings — 2 and 9 respectively.

K PILATES ships an update every 11 months, StrengthCharts every 3 days. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | K PILATES | StrengthCharts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/k-pilates/id6737283182/reviews) | [5.0 (9 ratings)](https://appshunter.io/ios/app/strengthcharts/id6761199060/reviews) |
| Number of ratings | 2 | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 121 MB | 22 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) | [CAMERON JOSEPH KHAMI](https://appshunter.io/developer/1888242302) |

## What reviewers say

### K PILATES

[App page](https://appshunter.io/ios/app/k-pilates/id6737283182)

Book and manage Pilates classes with ease. Connect with instructors, find classes that suit your schedule and skill level, and purchase class packages. Stay on track with your fitness journey from anywhere.

**Highlights:** Book classes, Manage bookings, Purchase class packages, Connect with instructors, Find classes by schedule and skill level

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is K PILATES free?

K PILATES is free to download, with no in-app purchases.

### Is StrengthCharts free?

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

### Which has better reviews, K PILATES or StrengthCharts?

K PILATES and StrengthCharts are both rated 5.0 out of 5 on the App Store, from 2 and 9 ratings respectively.

### Do K PILATES or StrengthCharts have ads?

Neither K PILATES nor StrengthCharts shows ads.

### Which is updated more often, K PILATES or StrengthCharts?

K PILATES ships an update every 11 months, and StrengthCharts every 3 days. Most recently, K PILATES was updated on October 12, 2026 and StrengthCharts on October 24, 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.*