Bucephalas Ephemeral Downloads & RevenueBucephalas Ephemeral · App Store
Bucephalas Ephemeral is #183 in Navigation Paid in Japan and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperJunichiro Seyama
CategoryNavigation
Price150 JPY
Released
Rating★ 3.0 (1)
Version11.6.0
Age rating4+
First seen by us
28 Sep 2026
28 Sep 2026Full timeline · 3 events
- 🆕Bucephalas Ephemeral first spotted by AppInsider#88 in Top Paid · Navigation · Japan
- 📦Bucephalas Ephemeral version 11.6.0Minor fixes to support iOS27.
- 🆕Bucephalas Ephemeral released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.0 ★
1 ratings
Measured
Best rank now
#183
Navigation PaidMeasured
Bucephalas Ephemeral on the App Store
App details
App ID
870925809
Publisher
Junichiro Seyama
On the store since
May 2014
12 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
2
EN JA
Size
13 MB
Also listed in
Health & Fitness
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | NavigationPaid | #183 |
Apps near Bucephalas Ephemeral on the chart
Navigation Paid, around #183.
Ratings
App Store, worldwide.
Rating
3.0 ★
1 ratings
Measured
Ratings
1
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
3.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Navigation apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Bucephalas Ephemeral
+ Limitation of this App 'Ephemeral'
This app is a limited-functionality version of 'Bucephalas'.
(1) Your journey to go around Knots is recorded in the same manner as the full version, but only those unknotted within 24 hours are shown on the map.
(2) Travel Logs in the Dispelling Mode are recorded only for the first nine fog clusters.
(3) You can chase a Mirage until its grows to Level 10.
(4) A geoglyph draft mode of the rectangular footprints is not available.
Bucephalas Tabula rasa is a free version of this app. You can experience the features of the full version in a real ride using Tabula rasa.
+ Features as a Cycle Computer App
Bucephalas Ephemeral is designed on an assumption that a user's primary transportation device is a bicycle. Therefore, this app has basic features as a cycle computer app.
• A quasi-realtime slope meter using a barometer.
• Auto recording of local minima of slopes.
• Elevation gain, max elevation gain, cumulative elevation gain by using a GPS altimeter or a barometer.
• Heading estimation thad does not use magnetic compass whenever possible.
• Voice navigation to a destination.
• Indicates the direction of a destination by using 3D sounds (stereo sounds).
• Adaptive control of GPS activity depending on the battery level (full-blast mode, high-accuracy mode, power-saving mode, starvation mode, and nirvana mode).
• Effective speed; an original speed statistic based on a medial speed instead of a mean.
• Location bookmark.
• Realtime speed meter.
• Max speed indicator.
• Travel distance since the launch of the app.
• Odometer.
• The altitude and barometer.
• Auto-recording of a travel path.
+ Purpose of Unknotting
Imagine that someone has drawn a large number of latitudinal and longitudinal lines on the earth. These lines are separated by 1/60 degrees, or 1 minute. The intersections of these lines are called KNOTs.
Your mission is to unknot as many knots as possible.
+ How do you unknot a Knot?
You can unknot a knot by simply approaching within a radius of 50 m of a knot.
+ Gordian Knots
Most knots have fractions in their coordinates. For example, the latitude and longitude of the knot close to Apple Inc. are (+37.33333, -122.03333). However, the coordinates of some knots do not have fractions. Such knots are called Gordian Knots. The Gordian Knot closest to Apple Inc. lies at (+37.00000, -122.00000). Gordian Knots are unknotted in the same manner as ordinary knots.
+ Play Carefully
How many knots can you unknot? However, it should be noted that approaching some knots could be dangerous. So, play this game carefully at your own risk.
+ IMPORTANT
This App uses GPS in the background. Continued use of GPS running in the background can dramatically decrease battery life.
+ Health Management
This App estimates the magnitude of your physical activity and shows it as METs•Hour (a product of Metabolic Equivalents of tasks and activity duration in hour). The estimated physical activity magnitude can be converte
This app is a limited-functionality version of 'Bucephalas'.
(1) Your journey to go around Knots is recorded in the same manner as the full version, but only those unknotted within 24 hours are shown on the map.
(2) Travel Logs in the Dispelling Mode are recorded only for the first nine fog clusters.
(3) You can chase a Mirage until its grows to Level 10.
(4) A geoglyph draft mode of the rectangular footprints is not available.
Bucephalas Tabula rasa is a free version of this app. You can experience the features of the full version in a real ride using Tabula rasa.
+ Features as a Cycle Computer App
Bucephalas Ephemeral is designed on an assumption that a user's primary transportation device is a bicycle. Therefore, this app has basic features as a cycle computer app.
• A quasi-realtime slope meter using a barometer.
• Auto recording of local minima of slopes.
• Elevation gain, max elevation gain, cumulative elevation gain by using a GPS altimeter or a barometer.
• Heading estimation thad does not use magnetic compass whenever possible.
• Voice navigation to a destination.
• Indicates the direction of a destination by using 3D sounds (stereo sounds).
• Adaptive control of GPS activity depending on the battery level (full-blast mode, high-accuracy mode, power-saving mode, starvation mode, and nirvana mode).
• Effective speed; an original speed statistic based on a medial speed instead of a mean.
• Location bookmark.
• Realtime speed meter.
• Max speed indicator.
• Travel distance since the launch of the app.
• Odometer.
• The altitude and barometer.
• Auto-recording of a travel path.
+ Purpose of Unknotting
Imagine that someone has drawn a large number of latitudinal and longitudinal lines on the earth. These lines are separated by 1/60 degrees, or 1 minute. The intersections of these lines are called KNOTs.
Your mission is to unknot as many knots as possible.
+ How do you unknot a Knot?
You can unknot a knot by simply approaching within a radius of 50 m of a knot.
+ Gordian Knots
Most knots have fractions in their coordinates. For example, the latitude and longitude of the knot close to Apple Inc. are (+37.33333, -122.03333). However, the coordinates of some knots do not have fractions. Such knots are called Gordian Knots. The Gordian Knot closest to Apple Inc. lies at (+37.00000, -122.00000). Gordian Knots are unknotted in the same manner as ordinary knots.
+ Play Carefully
How many knots can you unknot? However, it should be noted that approaching some knots could be dangerous. So, play this game carefully at your own risk.
+ IMPORTANT
This App uses GPS in the background. Continued use of GPS running in the background can dramatically decrease battery life.
+ Health Management
This App estimates the magnitude of your physical activity and shows it as METs•Hour (a product of Metabolic Equivalents of tasks and activity duration in hour). The estimated physical activity magnitude can be converte
Latest updates
11.6.0
Minor fixes to support iOS27.
