Comparison

RMU2 Config vs Construction Calc

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

Head to head
About

RMU2 Config

Features
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*** Requires a corTalk® RBT1 or RMU123PGM and RMU2 to use. *** Contact us at 'sales.rmu2@mobiltex.com' to purchase. This app is for configuring the corTalk® RMU2 (Remote Monitoring Unit 2) with a Bluetooth configuration interface. Both the RBT1 or RMU123PGM are compatible. They both function as a complete RMU2 programming interface but only requires the Bluetooth connection of your phone to use. The RMU2 is used to monitor a cathodic protection rectifier with accurate measurement of a wide variety of signals. This app allows access to diagnostic information on the RMU2 and setting up the configuration to meet the customer's needs. The app allows full configuration of the RMU2 including - slot measurement types - limits - slot scaling and offset - location Other features include the - viewing of readings and their limits - detailed status screen for troubleshooting - integrated manual - wiring diagrams for each measurement type The RBT1 and RMU123PGM is always in a Bluetooth pairing mode and requires a pairing code entered on the app. The pairing code (default=123456) can be found and changed with the app. Once paired, the iOS device can reconnect without needing to re-enter the code. The RBT1 pairing code can be reset by tapping the RBT1 5 times in 10 seconds with a user-supplied magnet.

About

Construction Calc

Features
Read full description

Designed by tradespeople, for tradespeople. Construction Calc Lite handles the heavy lifting of jobsite math—fractions, dimensional conversions, framing, and layout—so you can focus on the build. Whether you're a carpenter, concrete finisher, framer, superintendent, or DIYer, Construction Calc Lite delivers fast, accurate jobsite calculations with zero guesswork. WHY TRADES CHOOSE CONSTRUCTION CALC • True Feet-Inch-Fraction Math: Add, subtract, multiply, and divide in full dimensional fractions down to 1/16th (or user-set precision) with automatic reduction. • Seamless Unit Switching: Effortlessly mix Imperial and Metric. Convert feet-inch-fractions to meters, centimeters, or millimeters in a single tap. • Split-Screen Display: View decimal values, feet/inch fractions, memory registers, and scale factors simultaneously in large, high-visibility text. • Visual Cut & Layout Solvers: Dedicated modules for right triangles, miters, arcs, and baluster spacing complete with clear visual diagrams. • 50 Memory Registers & Full History: Never lose a cut list or measurement. Easily recall previous calculations on the fly. DEDICATED MODULES FOR EVERY TRADE • Framing & Layout: Calculate stud, fence post, and baluster spacing (horizontal, angled, or circular). • Miters & Trim: Visual miter and bevel angle calculator for crown molding and finish carpentry. • Geometry & Stairs: Instant solutions for right triangles, diagonals, rafter lengths, arcs, and chords. • Concrete, Volume & Area: Quickly calculate slab volume, footings, room square footage, and block/tank capacities. • Materials & Coverage: Estimate drywall sheets, tile, paint, and material costs with built-in waste allowances. • Smart Blueprint Scaling: Instantly scale plan drawings up or down to true field dimensions. BUILT FOR THE JOBSITE • High-Contrast Display: Large, legible fonts engineered for bright outdoor sunlight or dark crawl spaces. • Works 100% Offline: No cell service required on remote sites.

Screenshots

RMU2 Config4 screens
Construction Calc4 screens

Verdict

The call

The clearest difference is price: RMU2 Config at Free against Construction Calc's $7.99. RMU2 Config also leads on iOS requirement (15.6 vs 26.0). Construction Calc's advantage is update cadence (weekly vs every 3 months). On 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

RMU2 Config is free to download; Construction Calc costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RMU2 Config ships an update every 3 months, Construction Calc weekly. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 3 level
RMU2 Config versus Construction Calc: the parameters behind the verdict, then further details
ParameterRMU2 ConfigConstruction Calc
PriceFree — better$7.99
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.0
Further details — not scored
Size22 MB27 MB
Age rating4+4+
DeveloperMobiltex DataSnappy Appz Inc.

In-app purchases

None

RMU2 Config

No in-app purchases

None

Construction Calc

No in-app purchases

Questions

Is RMU2 Config free?
RMU2 Config is free to download, with no in-app purchases.
Is Construction Calc free?
Construction Calc costs $7.99, with no in-app purchases.
Do RMU2 Config or Construction Calc have ads?
Neither RMU2 Config nor Construction Calc shows ads.
Which is updated more often, RMU2 Config or Construction Calc?
RMU2 Config ships an update every 3 months, and Construction Calc weekly. Most recently, RMU2 Config was updated on October 20, 2026 and Construction Calc on October 5, 2026.

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