diff --git a/Scripts/analyze_crashlytics.py b/Scripts/analyze_crashlytics.py
new file mode 100644
index 0000000..90c3e3f
--- /dev/null
+++ b/Scripts/analyze_crashlytics.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python3
+"""
+Crashlytics report for Portfolio Journal via the BigQuery export.
+
+Setup (one-time, already done 2026-07-13):
+  - Firebase console → project portfoliojournal-ef2d7 → Integrations → BigQuery:
+    enable the Crashlytics export (requires Blaze plan).
+  - Grant the service account sirius@sirius-vazquez.iam BigQuery Data Viewer +
+    Job User on project portfoliojournal-ef2d7.
+
+Creds come from `pass show google/sirius-service-account`. The export table is
+created on the first crash after enabling, named like
+`firebase_crashlytics.com_alexandrevazquez_PortfolioJournal_IOS`.
+
+Usage: python3 Scripts/analyze_crashlytics.py [days]   # default 30
+"""
+import subprocess, json, sys, urllib.request, urllib.error
+
+PROJECT = "portfoliojournal-ef2d7"
+DATASET = "firebase_crashlytics"
+DAYS = int(sys.argv[1]) if len(sys.argv) > 1 else 30
+
+
+def creds_token():
+    raw = subprocess.run(["pass", "show", "google/sirius-service-account"],
+                         capture_output=True, text=True).stdout
+    try:
+        info = json.loads(raw)
+    except Exception:
+        out, ins, esc = [], False, False
+        for c in raw:
+            if esc: out.append(c); esc = False
+            elif c == "\\": out.append(c); esc = True
+            elif c == '"': ins = not ins; out.append(c)
+            elif ins and c == "\n": out.append("\\n")
+            elif ins and c == "\r": pass
+            else: out.append(c)
+        info = json.loads("".join(out))
+    from google.oauth2 import service_account
+    import google.auth.transport.requests
+    c = service_account.Credentials.from_service_account_info(
+        info, scopes=["https://www.googleapis.com/auth/cloud-platform"])
+    c.refresh(google.auth.transport.requests.Request())
+    return c.token
+
+
+def api(token, path):
+    req = urllib.request.Request(
+        f"https://bigquery.googleapis.com/bigquery/v2/projects/{PROJECT}{path}",
+        headers={"Authorization": f"Bearer {token}"})
+    return json.load(urllib.request.urlopen(req))
+
+
+def query(token, sql):
+    body = json.dumps({"query": sql, "useLegacySql": False, "timeoutMs": 60000}).encode()
+    req = urllib.request.Request(
+        f"https://bigquery.googleapis.com/bigquery/v2/projects/{PROJECT}/queries",
+        data=body, headers={"Authorization": f"Bearer {token}",
+                            "Content-Type": "application/json"})
+    d = json.load(urllib.request.urlopen(req))
+    cols = [f["name"] for f in d.get("schema", {}).get("fields", [])]
+    rows = [[c.get("v") for c in r["f"]] for r in d.get("rows", [])]
+    return cols, rows
+
+
+def main():
+    token = creds_token()
+    try:
+        td = api(token, f"/datasets/{DATASET}/tables?maxResults=100")
+    except urllib.error.HTTPError as e:
+        print(f"No access to {DATASET} (HTTP {e.code}).")
+        return
+    tables = [t["tableReference"]["tableId"] for t in td.get("tables", [])]
+    crash_tables = [t for t in tables if "IOS" in t or "ios" in t.lower()]
+    if not crash_tables:
+        print("No Crashlytics export tables yet — no crashes exported since the "
+              "export was enabled. (Good news.)")
+        return
+    table = crash_tables[0]
+    print(f"== Crashlytics {table} — últimos {DAYS}d ==\n")
+
+    sql = f"""
+    SELECT
+      issue_title, issue_subtitle,
+      application.display_version AS version,
+      COUNT(*) AS events,
+      COUNT(DISTINCT installation_uuid) AS users,
+      COUNTIF(error_type = 'FATAL') AS fatal
+    FROM `{PROJECT}.{DATASET}.{table}`
+    WHERE event_timestamp >= TIMESTAMP_SUB(CURRENT_TIMESTAMP(), INTERVAL {DAYS} DAY)
+    GROUP BY issue_title, issue_subtitle, version
+    ORDER BY events DESC
+    LIMIT 25
+    """
+    cols, rows = query(token, sql)
+    if not rows:
+        print("Sin crashes en el periodo.")
+        return
+    for r in rows:
+        title, sub, ver, events, users, fatal = r
+        print(f"[{ver}] {title} — {sub}")
+        print(f"    {events} eventos · {users} usuarios · {fatal} fatales\n")
+
+
+if __name__ == "__main__":
+    main()