Klein Borescope ET21 vs CrowdCheckr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Klein Borescope ET21
This app allows construction workers to capture pictures and videos of worksite progress and details using a WiFi borescope. It facilitates easy documentation of on-site conditions and project advancements.
- Picture capture
- Video recording
- WiFi connectivity
- Worksite documentation
- Progress tracking
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The WiFi Borescope provides construction workers picture and video capture of worksite progress and details
CrowdCheckr
Streamline venue management with automatic occupancy counting, private event bookings, and real-time insights. Optimize staffing based on historical data and manage your entire team's access with role-based permissions.
- Automatic occupancy counting
- Private event booking management
- Real-time venue insights
- Data-driven staffing recommendations
- Role-based team access
- Historical data analysis
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Automatic occupancy counting, private event bookings, and real-time insights, all in one dashboard for your venue. KNOW YOUR COUNT One accurate count across every door. Let us handle the math while you focus on what matters. FREE UP YOUR DOOR Your bouncers stop tallying and go back to the job. Checking IDs, keeping glasses from leaving, and handling trouble before it starts. LIVE FROM ANYWHERE Check the count from the door, your couch, or the back office. It updates instantly, so nobody is walking back and forth to ask. EVERY MINUTE, SAVED A clicker gives you one number, then it's gone. CrowdCheckr keeps every minute, so every night makes the next one easier to plan. STAFF ON DATA, NOT A HUNCH Recommended staffing hour by hour, built from your own history. Next week's schedule takes minutes instead of an evening. BOOKINGS AND EVENTS IN ONE PLACE Private event requests land in one inbox. Gamedays and concerts sit on one calendar. Nothing gets lost in a group chat. BUILT FOR THE WHOLE TEAM Role-based access. Bouncers see the live count, managers get analytics and bookings, owners control everything. CrowdCheckr works with the counting hardware installed at your door. Not set up yet? Start at www.crowdcheckr.com.
Screenshots
Verdict
The clearest difference is rating: CrowdCheckr at 5.0 against Klein Borescope ET21's 2.2. CrowdCheckr also leads on update cadence (every 2 weeks vs every 2 months). Klein Borescope ET21's advantage is ratings volume (9 vs 2) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model 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.
CrowdCheckr holds the better App Store score, 5.0 against 2.2. Both are backed by a comparable volume of ratings — 9 and 2 respectively.
Klein Borescope ET21 ships an update every 2 months, CrowdCheckr every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Klein Borescope ET21 | CrowdCheckr |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (9 ratings) | 5.0 (2 ratings) — better |
| Number of ratings | 9 — better | 2 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 19 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Klein Tools | CrowdCheckr LLC |
In-app purchases
Klein Borescope ET21
No in-app purchases
CrowdCheckr
No in-app purchases
Questions
Is Klein Borescope ET21 free?
Is CrowdCheckr free?
Which has better reviews, Klein Borescope ET21 or CrowdCheckr?
Do Klein Borescope ET21 or CrowdCheckr have ads?
Which is updated more often, Klein Borescope ET21 or CrowdCheckr?
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