1RM Estimator

Weight

Reps

RPE (opt)

Plate Calculator

Target Weight (KG)

20kg 15kg 10kg

Enter weight to see plates

RPE Guide

Rate of Perceived Exertion

10

Max Effort

Technical failure.

9

Heavy

1 rep in reserve.

8

Hard

2 reps in reserve.

7

Moderate

3 reps in reserve.

Coach Login

Program Builder

Target Date:

Tools:

Import from:

Focus

Coach Notes

Server Setup

1. Create a file named config.php with: <?php define('APP_PIN', '1234'); ?>
2. Create api.php with the code below:

<?php
header('Content-Type: application/json');
header('Access-Control-Allow-Origin: *');
require_once 'config.php';

$date = $_GET['date'] ?? date('Y-m-d');
$date = preg_replace('/[^0-9\-]/', '', $date);
if(!$date) $date = date('Y-m-d');
$dataDir = 'data';
if (!is_dir($dataDir)) { mkdir($dataDir, 0755, true); }
$file = "$dataDir/workout_$date.json";

if (isset($_GET['action']) && $_GET['action'] === 'auth') {
    $input = json_decode(file_get_contents('php://input'), true);
    if (isset($input['pin']) && (string)$input['pin'] === (string)APP_PIN) { echo json_encode(['status' => 'success']); } 
    else { echo json_encode(['status' => 'error']); }
    exit;
}

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $input = json_decode(file_get_contents('php://input'), true);
    if (!isset($input['auth_pin']) || (string)$input['auth_pin'] !== (string)APP_PIN) {
        http_response_code(403); echo json_encode(['status' => 'error', 'message' => 'Invalid PIN']); exit;
    }
    if (isset($input['data'])) { file_put_contents($file, json_encode($input['data'])); echo json_encode(['status' => 'success', 'date' => $date]); }
    else { echo json_encode(['status' => 'error', 'message' => 'No data found']); }
} else {
    if (file_exists($file)) { echo file_get_contents($file); } 
    else { echo json_encode(['blocks' => [], 'date' => $date]); }
}
?>