Comparison

Lux Meter Pros vs RockCONNECT IoT

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

Head to head
About

Lux Meter Pros

This tool transforms your iPhone into a professional light testing device. It measures lux levels, conducts emergency lighting discharge tests, and generates compliance certificates for UK electricians and facility managers.

Highlights
  • Real-time lux measurement
  • Photo-based light readings
  • Room grid mapping
  • Emergency light testing (BS 5266)
  • Certificate generation (PDF)
  • Exportable reports (PDF/CSV)
  • Historical tracking
Features
Read full description

The only lux meter app with BS 5266 emergency lighting compliance, PDF certificates, logbooks, and minor works reports — built for UK electricians, inspectors, and facility managers. Turn your iPhone into a professional light testing toolkit. Measure lux levels, run 1-hour and 3-hour discharge tests, generate fire alarm certificates, and export everything as PDF — no additional hardware needed. REAL-TIME LUX MEASUREMENT Instant illuminance readings using your iPhone's built-in sensor. Accurate enough for site surveys, workplace assessments, and lighting design verification. PHOTO-BASED LIGHT READINGS Capture photos alongside each reading for site documentation. Perfect for audit trails and client reports. ROOM GRID MAPPING Build light heatmaps across any space. Identify dark spots, verify uniformity, and pinpoint where lighting falls below safe levels. EMERGENCY LIGHT TESTING (Pro) Run timed 1-hour and 3-hour discharge tests to BS 5266 standards. Monitor compliance levels throughout the test and record results automatically. CERTIFICATE GENERATION (Pro) Generate professional-grade documents on site, ready to hand over or email: — Emergency Lighting Periodic Test Certificate — Emergency Lighting Logbook — Minor Electrical Works Certificate — Fire Alarm Certificate EXPORTABLE REPORTS Save all lux data and compliance reports as PDFs or CSVs. Attach photos, timestamps, and location references. HISTORICAL TRACKING Compare readings over time for any location. Track whether lighting conditions have changed between inspections. BUILT FOR PROFESSIONALS — Electricians and lighting contractors — Facility and building managers — Fire safety and compliance officers — Architects and interior designers — Health and safety inspectors SUBSCRIPTION PLANS Weekly Lux Pass – £0.99/week Monthly Lux Pass – £2.99/month Yearly Lux Pass – £24.99/year Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID account settings. Payment is charged to your Apple ID account at confirmation of purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://luxmeterpro.com/private-policy Support: https://luxmeterpro.com/contact-us

About

RockCONNECT IoT

Features
Read full description

For configuring, updating and managing your Ground Control IoT devices via Bluetooth. Including support for RockREMOTE Mini and RockBLOCK PRO.

Screenshots

Lux Meter Pros4 screens
RockCONNECT IoT4 screens

Verdict

The call

The clearest difference is in-app purchases: RockCONNECT IoT at none against Lux Meter Pros's 3. On price, update cadence, ads 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. Lux Meter Pros sells 3 in-app purchases, starting at $0.99 per 7 days. RockCONNECT IoT asks for nothing beyond the download.

UpkeepUpdate frequency

Lux Meter Pros ships an update every 4 months, RockCONNECT IoT every 2 months. Both last shipped on October 24, 2026.

Scorecard1 real difference · 9 level
Lux Meter Pros versus RockCONNECT IoT: the parameters behind the verdict, then further details
ParameterLux Meter ProsRockCONNECT IoT
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size25 MB2 MB
Age rating4+4+
DeveloperDADLINK TECHNOLOGIES LIMITEDGround Control Technologies UK Ltd

In-app purchases

3 purchases

Lux Meter Pros

Subscriptions3
  • Weekly Lux Pass$0.997 Days
  • Monthly Lux Pass$2.991 Month
  • Annual Lux Pass$24.991 Year
None

RockCONNECT IoT

No in-app purchases

Questions

Is Lux Meter Pros free?
Lux Meter Pros is free to download, with in-app purchases available.
Is RockCONNECT IoT free?
RockCONNECT IoT is free to download, with no in-app purchases.
Do Lux Meter Pros or RockCONNECT IoT have ads?
Neither Lux Meter Pros nor RockCONNECT IoT shows ads.
Which is updated more often, Lux Meter Pros or RockCONNECT IoT?
Lux Meter Pros ships an update every 4 months, and RockCONNECT IoT every 2 months. Most recently, Lux Meter Pros was updated on October 24, 2026 and RockCONNECT IoT on October 24, 2026.

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