Klein Borescope ET21 vs Supreme One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Klein Borescope ET21
Read full descriptionHide full description
The WiFi Borescope provides construction workers picture and video capture of worksite progress and details
Supreme One
Read full descriptionHide full description
Supreme One — the next-generation real estate intelligence platform. Supreme One is a modern, integrated system designed to empower real estate Agents with transparent, well-informed, client-centric tools that elevate your role as the market expert. Supreme One brings a seamless, data-driven experience to every stage of your workflow. Supreme one is currently invite only. Message us at info@supreme.one for access information. Key Features: • Unified, intuitive design delivering a modern end-to-end mobile experience • Faster search, streamlined workflows, and advanced market analysis tools • Built-in collaboration, messaging, and client engagement tracking • Centralized, authoritative property data backed by advanced cloud architecture Supreme One redefines how real estate professionals connect, analyze, and act—helping you stay ahead in your market with clarity and precision.
Screenshots
Verdict
The clearest difference is update cadence: Supreme One at every 3 days against Klein Borescope ET21's every 2 months. Klein Borescope ET21's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Klein Borescope ET21 ships an update every 2 months, Supreme One every 3 days. The most recent releases landed on October 4, 2026 and September 18, 2026 respectively.
| Parameter | Klein Borescope ET21 | Supreme One |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 19 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Klein Tools | Stratus Data Systems, Inc. |
In-app purchases
Klein Borescope ET21
No in-app purchases
Supreme One
No in-app purchases
Questions
Is Klein Borescope ET21 free?
Is Supreme One free?
Do Klein Borescope ET21 or Supreme One have ads?
Which is updated more often, Klein Borescope ET21 or Supreme One?
Other comparisons
