Comparison

Strap Angles vs Digital Japanese Clock

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

Head to head
About

Strap Angles

This app helps measure the floor and centerline angles of cargo straps using your iPhone or iPad. It guides you through a simple calibration and measurement process, allowing you to share the results and perform a reasonability check.

Highlights
  • Calibrate device orientation
  • Measure floor and centerline angles
  • Share angle measurements
  • Reasonability check for measurements
  • Information on cargo strapping
Features
Read full description

Measure the floor and centerline angles of a cargo strap by following a 2 step process: STEP 1 - CALIBRATE The first step is to calibrate the initial position and orientation of your iPhone or iPad. Calibrate by placing your iPhone or iPad flat and level next to the strap's tie-down fitting (double stud fitting or ring), pointing the top of the phone in the aircraft's forward direction, and tapping the red arrow button. STEP 2 - MEASURE The second step is to measure the strap's floor and centerline angle by moving the iPhone or iPad to the strap Place the edge of your iPhone or iPad against the strap while pointing the top of the iPhone or iPad towards the strap's first contact point with the cargo and pointing the bottom of the phone towards the strap's tie-down fitting. Tap the orange arrow button to lock the measurement. SHARE Tap the Share button on the app's bottom toolbar to copy, save, text, email, AirDrop, post, or send the angle measurements. Enter the strap's identification number if you need to keep track of different straps. REASONABILITY CHECK Before using your measured floor and centerline angles to determine strap restraint capability, you must do a reasonability check which verifies that the measurements represent reasonable angles of the strap. For example, if a strap is installed so that it looks close to straight up and down, a reasonable value for the floor angle measurement would be 80 to 90 degrees. If a strap is installed so that it looks like it extends in the forward direction along the floor, a reasonable value for the centerline angle would be from 0 to 10 degrees, and a reasonable value for the floor angle would be from 0 to 10 degrees. If either your floor angle or centerline angle measurement does not appear reasonable, then do not use the measurements and determine why there is an error. ULDCARE ULDCARE is the sponsor of this app. Tap the ULDCARE button on the app's bottom toolbar for more information on strapping cargo.

About

Digital Japanese Clock

Experience the Edo period's unique timekeeping with this digital clock. It simulates the indefinite time method, dividing days and nights into variable lengths. Customize sounds, displays, and backgrounds for an immersive historical experience.

Highlights
  • Indefinite time method simulation
  • Customizable bell sounds (drums, cannons, cuckoo)
  • Multiple display options (zodiac, numerals, emojis)
  • Adjustable background color and font
  • Optional modern sub-clock display
  • Settings for time methods and display elements
Features
Read full description

A wadokei is a mechanical clock made in Japan during the Edo period. At that time, Japan used a unique time system called the "indefinite time method". It is a method of dividing the day into day and night and then dividing each into equal parts. The common people of the Edo period began their day's activities by listening to the "dawn six bells" about 30 minutes before sunrise and ended their activities by listening to the "dusk six bells" about 30 minutes after sunset. Naturally, the time of sunrise and sunset varied with the seasons, so the time of bell ringing and the length of the unit of time, ittoki, between day and night also changed greatly. But not only was this perfectly acceptable at the time, it was also an eco-friendly way of living that suited their body rhythms very well. This app is a digital representation of this indefinite time method. The hour bells can be switched not only to the sound of bells, but also to drums, cannons, cuckoo, pillar clocks, etc. The main display can be selected from zodiac signs, numerals, and emojis. You can open the settings screen by tapping twice on the main display or by tapping the settings icon. You can change the background color, font, time methods, show/hide sub-clock, etc. here. The sub-clock in the lower left corner of the screen can also display a modern clock. You can switch the display between 24 hours, 12 hours, numerals, and zodiac signs with each tap. Please use this application and experience the rhythm of life in the Edo period. Perhaps you will discover something good.

Screenshots

Strap Angles4 screens
Digital Japanese Clock4 screens

Verdict

The call

The clearest difference is review sentiment: Strap Angles at 100% against Digital Japanese Clock's 0%. Strap Angles also leads on rating (5.0 vs 2.0) and in-app purchases (none vs 1). On price, ratings volume 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

Both are free to download. Digital Japanese Clock sells 1 one-off in-app purchase. Strap Angles asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Strap Angles holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of Strap Angles's written reviews are positive against 0% of Digital Japanese Clock's.

UpkeepUpdate frequency

Strap Angles ships an update weekly, Digital Japanese Clock every 6 weeks. The most recent releases landed on June 1, 2026 and September 13, 2026 respectively.

Scorecard7 real differences · 3 level
Strap Angles versus Digital Japanese Clock: the parameters behind the verdict, then further details
ParameterStrap AnglesDigital Japanese Clock
PriceFreeFree
Rating5.0 (1 ratings) — better2.0 (1 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings11
Update frequencyWeekly — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.3 — better14.0
Further details — not scored
Size14 MB6 MB
Age rating4+4+
DeveloperBlair DuBoisMihoko Araki

Customer experience

Strap Angles

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Digital Japanese Clock

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Strap Angles

No in-app purchases

1 purchases

Digital Japanese Clock

One-time1
  • No Ads$1.99

Questions

Is Strap Angles free?
Strap Angles is free to download, with no in-app purchases.
Is Digital Japanese Clock free?
Digital Japanese Clock is free to download, with in-app purchases available.
Which has better reviews, Strap Angles or Digital Japanese Clock?
Strap Angles is rated higher. Strap Angles averages 5.0 out of 5 from 1 ratings, while Digital Japanese Clock averages 2.0 from 1 ratings.
Do Strap Angles or Digital Japanese Clock have ads?
Digital Japanese Clock shows ads; Strap Angles does not.
Which is updated more often, Strap Angles or Digital Japanese Clock?
Strap Angles ships an update weekly, and Digital Japanese Clock every 6 weeks. Most recently, Strap Angles was updated on June 1, 2026 and Digital Japanese Clock on September 13, 2026.

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