Comparison

Instrument Toolbox vs I&C Tech Tools

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

Head to head
About

Instrument Toolbox

A professional calculator designed for industrial control, automation, and instrumentation engineers. It offers quick conversions and calculations for gas concentration, units, steam properties, flange levels, and pipeline flow. Ideal for both field debugging and engineering design.

Highlights
  • PPM to mg/m³ conversion with compensation
  • Industrial unit conversion (pressure, volume, temp, etc.)
  • Saturated steam pressure and density calculator
  • Flange level migration calculations
  • Pipeline flow and velocity calculator
  • Real-time calculation results
Features
Read full description

Industrial Control & Instrumentation Toolbox - Your Smart Industrial Calculator A professional calculation toolbox designed for industrial control, automation, and instrumentation engineers. Whether for field debugging or engineering design, it helps you quickly complete various professional calculations. Core Features: PPM to mg/m³ Converter: Gas concentration unit conversion, supports custom molecular weight, built-in quick selection of common gas molecular weights, with environmental temperature and pressure compensation Unit Converter: Covers easy conversion of industrial measurement units including: Pressure (8 units including MPa, kPa, bar, psi, etc.) Volume Temperature Length Mass Saturated Steam Calculator: Input temperature to obtain saturated steam pressure, or input pressure to calculate saturated steam density, meeting steam system design requirements Flange Level Migration: Supports single/dual flange level calculations, with inputs for medium density, flange distance, and other parameters for precise level measurement calibration Pipeline Flow & Velocity Calculator: Applicable for both gas and liquid media, integrates velocity calculation, flow calculation, and diameter calculation, incorporating temperature, pressure, and other operating conditions Key Features: Clean and intuitive interface, easy operation Real-time calculation results Supports standard and operating condition conversions Built-in reference values like standard atmospheric pressure Suitable for both field engineering and design office scenarios This app is an essential professional tool for industrial automation, significantly improving engineering calculation efficiency. Target Users: Automation Engineers, Instrumentation Engineers, Process Engineers, Equipment Engineers, and other industrial control professionals.

About

I&C Tech Tools

This app offers essential calculation tools for instrumentation and control technicians and engineers. It provides free access to basic tools, with advanced calculators available through a one-time in-app purchase or subscription.

Highlights
  • Basic instrumentation calculations
  • Free access to selected tools
  • Advanced calculators via in-app purchase
  • Practical reference tools
  • Ongoing improvements and updates
Features
Read full description

Instrumentation and control calculation tools for technicians and engineers. Some tools require an in-app purchase. I&C Tech Tool provides practical instrumentation and control calculation tools designed for field technicians, engineers, and students You can use selected tools for free. Advanced calculators and professional tools are available with a one-time in-app purchase. Features include: • Basic instrumentation calculations • Free access to selected tools • Advanced calculators available with in-app purchase • Practical reference tools for field use • Ongoing improvements and updates Some features require an in-app purchase. Free tools are available to preview before purchasing full access. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/ictechtool/home

Screenshots

Instrument Toolbox4 screens
I&C Tech Tools3 screens

Verdict

The call

The clearest difference is price: I&C Tech Tools at Free against Instrument Toolbox's $1.99. Instrument Toolbox's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 15.1). On 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

I&C Tech Tools is free to download; Instrument Toolbox costs $1.99 up front. I&C Tech Tools sells 2 in-app purchases, starting at $4.99 per month. Instrument Toolbox asks for nothing beyond the download.

UpkeepUpdate frequency

Instrument Toolbox ships an update weekly, I&C Tech Tools every 4 days. The most recent releases landed on September 23, 2026 and June 30, 2026 respectively.

Scorecard4 real differences · 6 level
Instrument Toolbox versus I&C Tech Tools: the parameters behind the verdict, then further details
ParameterInstrument ToolboxI&C Tech Tools
Price$1.99Free — better
Rating—1.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—1 — better
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size8 MB43 MB
Age rating4+4+
Developer立娜 王LONNIE DALE RAWLS

In-app purchases

None

Instrument Toolbox

No in-app purchases

2 purchases

I&C Tech Tools

Subscriptions2
  • I&C Tech Tools - Monthly Access$4.991 Month
  • I&C Tech Tools - Yearly$49.991 Year

Questions

Is Instrument Toolbox free?
Instrument Toolbox costs $1.99, with no in-app purchases.
Is I&C Tech Tools free?
I&C Tech Tools is free to download, with in-app purchases available.
Do Instrument Toolbox or I&C Tech Tools have ads?
Neither Instrument Toolbox nor I&C Tech Tools shows ads.
Which is updated more often, Instrument Toolbox or I&C Tech Tools?
Instrument Toolbox ships an update weekly, and I&C Tech Tools every 4 days. Most recently, Instrument Toolbox was updated on September 23, 2026 and I&C Tech Tools on June 30, 2026.

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