Comparison

Nexus Valve BC3 vs Proof TAB

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Nexus Valve BC3

Read full description

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.

About

Proof TAB

Features
Read full description

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

Nexus Valve BC34 screens
Proof TAB4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Nexus Valve BC3 ships an update every 4 months, Proof TAB weekly. Both last shipped on November 3, 2026.

Scorecard2 real differences · 4 level
Nexus Valve BC3 versus Proof TAB: the parameters behind the verdict, then further details
ParameterNexus Valve BC3Proof TAB
PriceFreeFree
Update frequencyEvery 4 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size43 MB948 MB
Age rating4+4+
DeveloperSV TechnicsJawad Jaber

In-app purchases

None

Nexus Valve BC3

No in-app purchases

None

Proof TAB

No in-app purchases

Questions

Is Nexus Valve BC3 free?
Nexus Valve BC3 is free to download, with no in-app purchases.
Is Proof TAB free?
Proof TAB is free to download, with no in-app purchases.
Do Nexus Valve BC3 or Proof TAB have ads?
Neither Nexus Valve BC3 nor Proof TAB shows ads.
Which is updated more often, Nexus Valve BC3 or Proof TAB?
Nexus Valve BC3 ships an update every 4 months, and Proof TAB weekly. Most recently, Nexus Valve BC3 was updated on November 3, 2026 and Proof TAB on November 3, 2026.

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