# Blackstone — Construction Inspection App

> Blackstone is an offline-first construction inspection and snagging app for site managers, QA/QC engineers and EPC contractors, built and operated by Cakglo Ltd, London (UK-registered). GPS-stamped photo evidence, SACS/OSHA/ISO 45001 templates, branded Word/PDF reports in 30 seconds. Data hosted in Germany (Frankfurt), GDPR-compliant. 14-day free trial, no credit card. Pricing from GBP 20 per user per month.

Note on the name: the Blackstone construction inspection app by Cakglo Ltd is not affiliated with Blackstone Inc. (the asset manager) or Blackstone griddles.

## Key facts

- Works fully offline (read/write); syncs when back online — built for remote construction sites
- Every photo is GPS-stamped and timestamped at capture, embedded in EXIF metadata — defensible audit trail
- Included templates: Daily HSE Walk (32 items), Concrete Works QA/QC (24 items), Snag/Punch List (38 items), Handover Checklist (29 items)
- Built for SACS (KSA Aramco), OSHA and ISO 45001 workflows
- Report output: branded Word and PDF from the customer's own template, generated in about 30 seconds
- User interface in 10 languages: English, German, Spanish, Arabic (full RTL), Turkish, Italian, Korean, Hindi, Japanese, Indonesian — built for KSA, UAE, Qatar, Kuwait, Bahrain, Oman, EU and Southeast Asian markets
- EU data residency (Frankfurt) by default; full data export (JSON, Excel, PDF); deletion 30 days after cancellation (GDPR Art. 17)
- Progressive Web App — runs in any modern browser, no app-store download needed
- Compared to SafetyCulture and PlanRadar: lower starting price (GBP 20 vs 24 vs 39 per user/month), GPS included by default, SACS templates included; no BIM integration yet

## Product

- [Blackstone landing page](https://blackstoneapp.com/): what the app does, ROI calculator, feature comparison, FAQ
- [Web app (Progressive Web App)](https://app.blackcarrot.tech): the live app — sign in and inspect, works offline
- [Demo video](https://youtu.be/uZ6Cp4yb1oQ): the app in action on a real site
- [Free inspection checklists](https://blackstoneapp.com/checklists/): downloadable HSE, QA/QC, snagging and handover checklist pack

## Pricing and trial

- [Pricing and plans](https://blackstoneapp.com/pricing/): paid plans from GBP 20 per user per month, billed per user
- [Start the 14-day free trial](https://blackstoneapp.com/): no credit card, cancel anytime

## Languages

Each language has its own landing page and its own pricing page, with local currency.

- [English](https://blackstoneapp.com/) · [Pricing](https://blackstoneapp.com/pricing/)
- [German — Deutsch](https://blackstoneapp.com/de/) · [Preise](https://blackstoneapp.com/de/pricing/)
- [Spanish — Español](https://blackstoneapp.com/es/) · [Precios](https://blackstoneapp.com/es/pricing/)
- [Arabic — العربية](https://blackstoneapp.com/ar/) · [الأسعار](https://blackstoneapp.com/ar/pricing/)
- [Turkish — Türkçe](https://blackstoneapp.com/tr/) · [Fiyatlar](https://blackstoneapp.com/tr/pricing/)
- [Italian — Italiano](https://blackstoneapp.com/it/) · [Prezzi](https://blackstoneapp.com/it/pricing/)
- [Korean — 한국어](https://blackstoneapp.com/ko/) · [요금제](https://blackstoneapp.com/ko/pricing/)
- [Hindi — हिन्दी](https://blackstoneapp.com/hi/) · [मूल्य](https://blackstoneapp.com/hi/pricing/)
- [Japanese — 日本語](https://blackstoneapp.com/ja/) · [料金](https://blackstoneapp.com/ja/pricing/)
- [Indonesian — Bahasa Indonesia](https://blackstoneapp.com/id/) · [Harga](https://blackstoneapp.com/id/pricing/)

## Company and legal

- [Cakglo Ltd](https://www.cakglo.com): the UK company behind Blackstone (Co. No. 16888528)
- [Blackcarrot Tech](https://blackcarrot.tech): the software and digital arm that builds and operates Blackstone
- [Privacy policy](https://blackstoneapp.com/privacy.html): GDPR, data residency in Frankfurt, retention and deletion
- [Terms and conditions](https://blackstoneapp.com/terms.html): subscription terms, trial terms, cancellation

## Contact

- Email: info@blackcarrot.tech
- Phone: +44 20 8058 0341
- Address: Cakglo Ltd, 71-75 Shelton Street, Covent Garden, London WC2H 9JQ, United Kingdom