Comparison

Time vs PipeChecker

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

Head to head
About

Time

Calculate time durations with hours and minutes. Supports addition, subtraction, multiplication, and division, with features like calculation history, memory keys, and customizable preset buttons for quick time additions. Choose from various color themes.

Highlights
  • Calculate hours and minutes
  • Add, subtract, multiply, divide time
  • Calculation history saved
  • Memory keys for subtotals
  • Preset keys for one-touch time addition
  • Customizable color themes
Features
Read full description

This application allows you to calculate time (hours and minutes). You can calculate things like 1:30+0:50. When you enter a number, ":" is automatically inserted to separate the hour and minute, so you can calculate quickly. This is useful for calculating total work hours, time spent on daily errands, and travel time. You can add, subtract, multiply, and divide. The calculation history is automatically saved, so you can check it later. A memory key is provided, allowing you to save and add subtotals. Minutes that are often used for calculations (15 minutes, 30 minutes, etc.) can be registered and used for one-touch addition. A button to add 24 hours is provided for calculations when crossing days. It comes in a variety of colors such as orange, green, cyan, pink, and black, and you can choose the one you like best. [ List of functions ] You can calculate hours and minutes, or minutes and seconds. You can check the calculation history, and touch the answer displayed in the history to reuse it for calculations. The memory keys can be used to save, add, and subtract subtotals. By setting the preset keys, you can use the most frequently used time (minutes) for calculation with a single touch. The color of the application can be selected.

About

PipeChecker

This tool assists HVAC, sanitary, and plant piping engineers in selecting optimal pressure piping sizes with simple operations. It streamlines the design process for piping equipment technicians.

Highlights
  • Optimal pressure pipe sizing
  • Simplified operation
  • For piping equipment technicians
  • Supports HVAC, sanitary, and plant systems
Features
Read full description

このプログラムは、空調・衛生・プラント等の配管設備技術者のためのツールです。簡単な操作で最適な配管(圧力配管)サイズを選択できます。

Screenshots

Time4 screens
PipeChecker4 screens

Verdict

The call

The clearest difference is review sentiment: Time at 100% against PipeChecker's 0%. Time also leads on price ($1.99 vs $7.99) and iOS requirement (13.0 vs 15.0). PipeChecker's advantage is update cadence (every 4 months vs every 14 months). On ads, in-app purchases, monetization model 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

Time costs $1.99 and PipeChecker $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Time ships an update every 14 months, PipeChecker every 4 months. Both last shipped on September 21, 2026.

Scorecard4 real differences · 6 level
Time versus PipeChecker: the parameters behind the verdict, then further details
ParameterTimePipeChecker
Price$1.99 — better$7.99
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings3 — better—
Update frequencyEvery 14 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size64 MB27 MB
Age rating4+4+
DeveloperYUTAKA KENJOAIR DESIGN, INC.

Customer experience

Time

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PipeChecker

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Time

No in-app purchases

None

PipeChecker

No in-app purchases

Questions

Is Time free?
Time costs $1.99, with no in-app purchases.
Is PipeChecker free?
PipeChecker costs $7.99, with no in-app purchases.
Do Time or PipeChecker have ads?
Neither Time nor PipeChecker shows ads.
Which is updated more often, Time or PipeChecker?
Time ships an update every 14 months, and PipeChecker every 4 months. Most recently, Time was updated on September 21, 2026 and PipeChecker on September 21, 2026.

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