Comparison

Converter and Calculator vs Productivity Timer

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

Head to head
About

Converter and Calculator

This app functions as a unit and currency converter, offering over 500 units across 29 categories. It features a full-screen calculator with memory functions and allows for extensive customization of displayed units and their order.

Highlights
  • Unit and currency conversion
  • Full-screen calculator
  • Customizable units and categories
  • In-line calculations
  • Convert multiple units simultaneously
  • Automatic regional formatting
Features
Read full description

A calculator & unit & currency converter with a super clean interface, standalone calculator, customizable color, and over 500 units in 29 categories (161 currencies). Display only the units and categories you want and put them in any order. Fast, Easy To Use: Pick a category, pick a unit, and then enter an amount. All other units are instantly converted to your selected unit as you enter amount. Features: • Full screen calculator with memory functions quickly accessible from bottom toolbar • Customizable color • Customizable units (display only the units & categories you want in whatever order you want) • In-line calculations while converting (fractions, decimals, add, subtract, multiply, divide). • Convert multiple units / currencies at once • Both unit names and symbols shown. • Results with up to 12 significant digits. • Automatic formatting of decimal and thousands separators according to your Region. • Automatic formatting of extremely large or small numbers with scientific E notation. Options: - Font Size - Sound - Color Theme - Minimum Decimal Digits (0-12) - Maximum Decimal Digits (0-12) - Show Thousands Separators - E Notation (Off, Auto, Scientific, Engineering) - Equals Repeat - Replace ÷ Button With / - Replace E Button With Hidden, EE, 00, 000 - Show Memory Buttons - Memory Store (Result, Last Input Number) - Currency Updates - Symbol First - In-Line Definitions - UK Spelling 501 Units In 29 Categories: • Acceleration • Angle • Area • Blood Cholesterol • Blood Glucose • Capacitance • Currency • Data • Density • Dynamic Viscosity • Electric Charge • Electric Current • Electric Potential • Electrical Conductance • Electrical Resistance • Energy • Force • Frequency • Fuel Economy • Length • Mass • Power • Pressure • Speed • Temperature • Time • Torque • Volume • Weight (Mass) URL Scheme: converterpro://

About

Productivity Timer

Easily track your work hours with a simple start and stop button. This utility app aggregates your time segments into a clear table, allowing you to view and manage your logged periods.

Highlights
  • Start and stop timer with a single button
  • Automatic time segment aggregation
  • View logged time segments in a table
  • Remove individual time entries
  • Simple and easy to use interface
Features
Read full description

This is a simple app to track your hours worked. There are several apps that do some version of this, but I couldn't find one that kept it as simple as this one. Simply press the button to start the time. Press it again to stop. The app will add all the time segments together to give you a total and also keep track of them for you in a table that you can view and remove times from.

Screenshots

Converter and Calculator4 screens
Productivity Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Converter and Calculator at none against Productivity Timer's 1. Converter and Calculator also leads on update cadence (every 2 weeks vs every 9 months) and ratings volume (268 vs 1). Productivity Timer's advantage is rating (5.0 vs 4.7) and price ($0.99 vs $2.99). On ads, device support and iOS requirement 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

Converter and Calculator costs $2.99 and Productivity Timer $0.99 up front. Productivity Timer sells 1 one-off in-app purchase. Converter and Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Productivity Timer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Converter and Calculator has 268 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Converter and Calculator ships an update every 2 weeks, Productivity Timer every 9 months. Both last shipped on November 1, 2026.

Scorecard6 real differences · 4 level
Converter and Calculator versus Productivity Timer: the parameters behind the verdict, then further details
ParameterConverter and CalculatorProductivity Timer
Price$2.99$0.99 — better
Rating4.7 (268 ratings)5.0 (1 ratings) — better
Positive reviews90.2% of reviews—
Number of ratings268 — better1
Update frequencyEvery 2 weeks — betterEvery 9 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size9 MB9 MB
Age rating4+4+
DeveloperCider Software LLCDucky Planet LLC

Customer experience

Converter and Calculator

All ratings267 ratings
Positive95.1%
Neutral2.2%
Negative2.6%
Written reviews41 reviews
Positive90.2%
Neutral7.3%
Negative2.4%

Productivity Timer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Converter and Calculator

Reported bugs

3 issues
  • App not updating calculations daily
  • Conversion table setup is off by one line
  • No Copy/Paste functionality

Requested features

4 requests
  • Support today's widget
  • Add Vietnamese language
  • Create custom units
  • Add a search bar

Productivity Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Converter and Calculator

No in-app purchases

1 purchases

Productivity Timer

One-time1
  • Remove Ads$0.99

Questions

Is Converter and Calculator free?
Converter and Calculator costs $2.99, with no in-app purchases.
Is Productivity Timer free?
Productivity Timer costs $0.99, and also offers in-app purchases.
Which has better reviews, Converter and Calculator or Productivity Timer?
Productivity Timer is rated higher. Converter and Calculator averages 4.7 out of 5 from 268 ratings, while Productivity Timer averages 5.0 from 1 ratings.
Do Converter and Calculator or Productivity Timer have ads?
Neither Converter and Calculator nor Productivity Timer shows ads.
Which is updated more often, Converter and Calculator or Productivity Timer?
Converter and Calculator ships an update every 2 weeks, and Productivity Timer every 9 months. Most recently, Converter and Calculator was updated on November 1, 2026 and Productivity Timer on November 1, 2026.

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