Comparison

Calculator Keyboard vs Nirman Sathi

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

Head to head
About

Calculator Keyboard

This app turns your keyboard into a powerful calculator, allowing you to perform calculations directly within any application. Avoid switching apps and copying numbers by calculating on the go, whether you're texting, taking notes, or browsing.

Highlights
  • Calculate within any app
  • Supports Dark Mode
  • Customizable decimal points
  • Scientific calculator functions
  • Calculation history access
  • Keyboard feedback options
Read full description

Calku transforms your keyboard into a handy calculator, making quick calculations effortless without switching apps! Whether you're texting, taking notes, or browsing, you can instantly calculate within any app. Perfect for messaging, homework, or day-to-day tasks. Compatible with many apps such as • Messages, Messenger, WeChat, Line, Twitter, Telegram, Instagram, etc. • Safari • Notes • Mail • Stocks • And many more! Features : • Supports Dark Mode • Full iPadOS Compatibility • Customizable Decimal Points • Powerful Scientific Calculator • Access Your Calculation History • Keyboard Feedback (Sound & Haptic) Say goodbye to app-switching and copying-pasting—Calku makes calculations easy and seamless in any app! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://supagarn-pa.com/Calku/privacy-policy

About

Nirman Sathi

Features
Read full description

Professional Land Survey & Construction Toolkit Measure land, calculate area and perimeter, create accurate plots, and convert Nepal land units—all from your iPhone. Designed for surveyors, engineers, architects, contractors, and property professionals. Whether you're measuring a construction site, mapping a property boundary, or converting Ropani to square feet, this app gives you fast and reliable surveying tools in one place. Key Features GPS Land Survey Measure land directly on the map. Draw field boundaries with multiple points. Calculate area and perimeter instantly. Save and manage multiple fields. Coordinate Survey Enter X,Y or X,Y,Z coordinates. Create accurate land plots. Automatic area and perimeter calculations. Display vertices and side lengths. Interactive Plot Viewer Visualize property boundaries. View distances and angles. Zoom and inspect every measurement. Edit points with ease. Map Tools Search locations quickly. Create and organize survey fields. Browse saved projects. Measure directly from map boundaries. Nepal Land Unit Converter Convert between: Ropani–Aana–Paisa–Dam Bigha–Kattha–Dhur Square Feet Square Meter Acre Hectare Square Kilometer Project Management Organize multiple surveying projects. Switch between active projects. Keep measurements in one place. Track storage and project status. Perfect For - Civil Engineers Land Surveyors Contractors Architects Builders Real Estate Professionals Students Why Choose This App? Fast and intuitive interface Accurate area and perimeter calculations GPS and coordinate-based surveying Nepal-specific land unit support Professional tools designed for fieldwork. Privacy policy: https://rachanatmakeng.com/nirman/privacy Terms: https://rachanatmakeng.com/nirman/terms Take accurate land measurements anywhere and simplify your surveying workflow with a complete construction and land measurement toolkit.

Screenshots

Calculator Keyboard4 screens
Nirman Sathi4 screens

Verdict

The call

The clearest difference is in-app purchases: Nirman Sathi at none against Calculator Keyboard's 2. Calculator Keyboard's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 26.1). On price and ads 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. Calculator Keyboard sells 2 in-app purchases, starting at $0.99 per month. Nirman Sathi asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Calculator Keyboard versus Nirman Sathi: the parameters behind the verdict, then further details
ParameterCalculator KeyboardNirman Sathi
PriceFreeFree
Rating4.7 (494 ratings) — better—
Positive reviews76.8% of reviews—
Number of ratings494 — better—
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better26.1
Further details — not scored
Size3 MB22 MB
Age rating4+4+
DeveloperSupagarn PattananuchartMani Pandit

Bugs and requests

Calculator Keyboard

Reported bugs

7 issues
  • Cannot delete the app
  • App is buggy sometimes
  • Non-standard division and multiplication symbols not recognized by other apps
  • Incorrect calculations (e.g., 3.10 / 1000 = 0)
  • App only works on Apple Mail and Notes initially
Show 2 more
  • Cannot get it to 'Add Keyboard' on specific devices/iOS versions
  • No scientific calculator available

Requested features

8 requests
  • Add thousands separator for numbers
  • Haptic feedback on key presses
  • Option to hide computation in text box
  • History button on main page
  • Option for standard multiplication and division
Show 3 more
  • Add scientific/accountant calculator
  • Add Pi, square root, etc. to calculator
  • Vibration on touch

Nirman Sathi

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Calculator Keyboard

Subscriptions1
  • Calku PRO (1 Month)$0.991 Month
One-time1
  • Calku Pro - Lifetime$5.99
None

Nirman Sathi

No in-app purchases

Questions

Is Calculator Keyboard free?
Calculator Keyboard is free to download, with in-app purchases available.
Is Nirman Sathi free?
Nirman Sathi is free to download, with no in-app purchases.
Do Calculator Keyboard or Nirman Sathi have ads?
Neither Calculator Keyboard nor Nirman Sathi shows ads.

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