# Workout Performance Diary vs Kettlebell Protocol

The clearest difference is monetization model: Kettlebell Protocol at free against Workout Performance Diary's freemium. Kettlebell Protocol also leads on iOS requirement (16.4 vs 18.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Workout Performance Diary sells 2 in-app purchases, starting at $1.99 per month and Kettlebell Protocol sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Workout Performance Diary ships an update every 9 days, Kettlebell Protocol every 2 weeks. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Workout Performance Diary | Kettlebell Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kettlebell-protocol/id6758224588/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Freemium | **Free** |
| Size | 49 MB | 56 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Denis Romantsov](https://appshunter.io/developer/1628930387) | [Emanuel Quimper](https://appshunter.io/developer/1871597410) |

## What reviewers say

### Workout Performance Diary

[App page](https://appshunter.io/ios/app/workout-performance-diary/id6503918091)

Log your gym workouts with detailed progress tracking. Build custom plans, monitor your stats like volume and one-rep max, and stay consistent with calendar tracking. Integrates with Apple Health for a comprehensive fitness overview.

**Highlights:** Custom workout plan creation, Calendar and streak tracking, Built-in exercise library, Detailed charts and stats, Workout history and trends, Rest timer, Apple Health integration

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $9.99 | per year |


### Kettlebell Protocol

[App page](https://appshunter.io/ios/app/kettlebell-protocol/id6758224588)

Log your kettlebell workouts with a focused tracker designed for athletes. Build custom sessions, track progress, and establish consistent training habits with intuitive tools.

**Highlights:** Log kettlebell sessions, Build custom workouts, Create exercise complexes, EMOM, Interval, Stopwatch timers, Track weekly volume and streaks, Detect personal records, Large, easy-to-tap interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Workout Performance Diary free?

Workout Performance Diary is free to download, with in-app purchases available.

### Is Kettlebell Protocol free?

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

### Do Workout Performance Diary or Kettlebell Protocol have ads?

Neither Workout Performance Diary nor Kettlebell Protocol shows ads.

### Which is updated more often, Workout Performance Diary or Kettlebell Protocol?

Workout Performance Diary ships an update every 9 days, and Kettlebell Protocol every 2 weeks. Most recently, Workout Performance Diary was updated on October 7, 2026 and Kettlebell Protocol on October 6, 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.*