Nexus Valve BC3 vs Proof TAB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nexus Valve BC3
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Smart device for balancing of heating and cooling hydronic systems. Balancing valves of heading European producers has been programmed. Successfully can be used for measuring of very small differential pressure.
Proof TAB
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Proof TAB brings HVAC testing, adjusting, balancing, and commissioning work to your iPhone and iPad. Record equipment readings on site and coordinate project data with the Proof desktop companion. FIELD DATA, ORGANIZED Keep test information together by project and equipment. Record readings in structured forms and use checklists and issue logs to document your site work. BUILT FOR HVAC TEAMS Work with air handling units, fans, packaged units, chillers, hydronic systems, VAV equipment, duct traverses, and air distribution tests. FROM SITE TO OFFICE Save your work locally and synchronize through your company's Proof workflow. Continue project review and reporting with the desktop companion. LESS RE-ENTRY Use equipment-specific forms and calculations to keep field records consistent and reduce repeated data entry. Proof TAB is part of the Proof CxTAB platform. Company account access and the desktop companion may be required for your workflow. Visit proofcxtab.com to learn more or request a demonstration.
Screenshots
Verdict
The clearest difference is update cadence: Proof TAB at weekly against Nexus Valve BC3's every 4 months. Proof TAB also leads on iOS requirement (15.0 vs 17.0). 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.
Nexus Valve BC3 ships an update every 4 months, Proof TAB weekly. Both last shipped on November 3, 2026.
| Parameter | Nexus Valve BC3 | Proof TAB |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 948 MB |
| Age rating | 4+ | 4+ |
| Developer | SV Technics | Jawad Jaber |
In-app purchases
Nexus Valve BC3
No in-app purchases
Proof TAB
No in-app purchases








