# KOBP Strength vs CurlBro

The clearest difference is in-app purchases: CurlBro at none against KOBP Strength's 2. CurlBro also leads on ratings volume (4 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. KOBP Strength sells 2 in-app purchases, starting at $6.99 per month. CurlBro asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for KOBP Strength against 5.0 for CurlBro. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

KOBP Strength ships an update every 6 days, CurlBro every 11 days. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | KOBP Strength | CurlBro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/kobp-strength/id6761443268/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/curlbro-workout-tracker/id6762241598/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 11 days |
| Monetization | Freemium | **Free** |
| Size | 38 MB | 29 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [BRIAN PEREZ](https://appshunter.io/developer/1889682804) | [SIMONE LONGO](https://appshunter.io/developer/1893517019) |

## What reviewers say

### KOBP Strength

[App page](https://appshunter.io/ios/app/kobp-strength/id6761443268)

This app helps serious lifters track every set, benchmark their strength against global standards, and receive AI-driven coaching. It offers detailed progress charts, global leaderboards, and shareable session summaries. Users can import existing training data to get started quickly.

**Highlights:** Strength percentile rankings, AI coaching based on training data, Track every lift with precision, Global leaderboard for top sets, Import training history from any format, Shareable session summary cards

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KOBP Fitness Premium-monthly | $6.99 | per month |
| KOBP Fitness Premium-Annual | $49.99 | per year |


### CurlBro

[App page](https://appshunter.io/ios/app/curlbro-workout-tracker/id6762241598)

This strength-training app allows users to build, run, and log detailed workout sessions. It features an offline-first design with no account or subscription required, focusing on a clean tool for experienced lifters.

**Highlights:** Drag-to-reorder workout builder, Superset grouping, Built-in workout templates, Per-set logging, Rest timer with Live Activity, Full workout history, Share/import workouts as text

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

**In-app purchases:** none


## Frequently asked questions

### Is KOBP Strength free?

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

### Is CurlBro free?

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

### Which has better reviews, KOBP Strength or CurlBro?

KOBP Strength and CurlBro are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do KOBP Strength or CurlBro have ads?

Neither KOBP Strength nor CurlBro shows ads.

### Which is updated more often, KOBP Strength or CurlBro?

KOBP Strength ships an update every 6 days, and CurlBro every 11 days. Most recently, KOBP Strength was updated on October 24, 2026 and CurlBro on October 16, 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.*