Comparison

Skylog Pro vs ClinoScope

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

Head to head
About

Skylog Pro

This app allows professional pilots to log flight, simulator, and duty hours on their iPhone or iPod touch. It synchronizes data with the main PC application and provides reports to monitor flight and duty hour currency.

Highlights
  • Log flight, simulator, and duty hours
  • Data synchronization with PC application
  • Flight and duty hour currency reports
  • Monitor 7, 14, and 28-day periods
  • CAP 371 compliant reporting for UK pilots
  • Record aircraft type, approaches, and destinations
Features
Read full description

The Skylog Pro iPhone/iPad app, in conjunction with the most mature and well respected Professional Pilot Personal Flying Logbook - Skylog Pro, is the ideal app for professional pilots using the very popular Apple iPhone/iPad mobile devices when away from home. Created in 1996, Skylog Pro is used by thousands of airline pilots around the globe. Please note that, as with all our mobile apps, the iPhone app is designed to work with the Skylog Pro V6.09 (or later) PC application; it is NOT a stand-alone app, and can only be used in conjunction with the main PC application. Simple to use, the Skylog Pro iPhone app enables you to quickly record flight, simulator and duty hour details on your iPhone or iPod touch anywhere in the world, on the ground or in the Flight Levels, and allows you to continue using SkyLog Pro on your PC. Once back home, your iPhone/iPod touch data is synchronised by WiFi with the main Skylog Pro database on your PC using the Skylog iPhone Conduit available by FREE download from www.skylog.co.uk. Two reports are available which enable you to monitor your flight & duty hour currency. The Duty/Flight Hours Report will assist you in tracking of your flight and duty time currency for the preceding 7, 14 and 28-day periods (or limits and monitoring periods of your choice). The Flying Duty Hours Report, specifically for pilots operating aircraft registered in the United Kingdom, will enable calculation of your allowable flying duty hours in accordance with CAP 371. Skylog Pro, coupled with the iPhone/iPod touch app, is the ultimate combination for helping Professional Pilots comply with aviation authority record-keeping requirements. It gives you all the functionality and analytical reporting capabilities you would expect from a leading modern, sophisticated electronic logbook, including flight, simulator and duty hours, a/c type or categories flown, instrument approaches, destinations and much more. Existing Skylog Pro V6+ users need only purchase this app and then download the free iPhone synchronisation conduit from www.skylog.co.uk - where you will also be able to review all the features of Skylog Pro in detail. Please note that the iPhone/iPad app requires Skylog Pro V6.12 or later. Users of earlier V6 versions may update their applications free of charge by selecting Main Menu>Help>Check for Updates.

About

ClinoScope

This tool measures tilt angles and object inclination using your device's sensors. It offers real-time display of slopes and angles in different modes, with the ability to save measurements as images.

Highlights
  • Measures 3D angles of elevation, slope, and inclination
  • INCLINE mode for inclinometer readings
  • TIME mode for gyro-positioning time graph
  • Adjustable sensor sampling period
  • Snapshot feature to save measurements
  • Supports various iPhone orientations
Read full description

"ClinoScope" is a handy incline analysis tool that measures tilt angles and the three-dimensional inclination of objects relative to gravity, using your iPhone’s accelerometer and gyro sensors. You can quickly check slopes in various places, like uneven floors, leaning buildings, or leveling equipment. It can display the current terminal posture in real time by two measurement modes: INCLINE mode for inclinometer readings and TIME mode for a gyro-positioning time graph. Features: - Optimized for iPhone, Compact code size. - Measurement of three-dimensional angles of elevation, slope or inclination. - Inclination measurement function (INCLINE) - Gyro-positioning time graph function (TIME) - Switching function of sensor sampling period (SLOW): fast 10Hz / slow 1Hz - Snapshot (SNAP): Capture the measurement results to Photos. Applications: - Measurement of tilt states, such as furniture and floors. - Adjustment of the horizontal reference level when installing the equipment. - Measuring angle on moving vehicles. - Setting adjustment, such as audio equipment. - Use in various Sports, for example, measurement of the green inclination angle of the golf. Functions: 1) INCLINE (3-dimensional inclinometer) INCLINE mode utilizes the information of the acceleration sensor and operates as the three-dimensional inclinometer. It displays the angle and gradient in visually in accordance with the spatial attitude of the iPhone devices. The measurement display is slightly different by the terminal posture state (FaceUp, Portrait, Landscape) as follows: - FaceUP (Terminal horizontal, Flat): FaceUP is the state that the terminal has become horizontal to the ground plane. In this case, it appears the angle of pitch and roll in the arc, and the angle of yaw in the circle needle. It also displays the cross mark (+) on the position of the zenith (or the nadir), such as seeing the terminal from directly above. - Portrait (Vertical possession): Portrait is a state that you have hold the terminal to the vertical. The lower side of the Home button is standard. In this case, it appears the angle of pitch and yaw in the arc, and the angle of the roll in a circle needle. - Landscape (Horizontal possession): Landscape is the state that you have got sideways a terminal, the home button right side will be the standard. In this case, it appears the angle of roll and yaw in the arc, and the angle of the pitch in the circle needle. 2) TIME (time graph) TIME mode is used to see in real time the data of the 3-axis (pitch / yaw / roll) angle and the angular velocity output from the gyro sensor to display the graph. Please use this mode in the state of FaceUP. - Angle display: pitch: -π/2 - π/2 [rad] (-90° - +90°) yaw: -π - π [rad] (-180° - +180°) roll: -π - π [rad] (-180°- +180°) - Acceleration: pitch/yaw/roll: -4π(-12.56) - +4π(12.56) [rad/sec] 3) Snapshot Measurement results can be saved as a picture image in the Photo Library. Time stamp and device orientation information will also be displayed. # Display of device orientation: - Flat: indicates terminal horizontal and is synonymous with FaceUP. - Portrait: indicates Vertical possession. - Landscape: indicates Horizontal possession. Note: - Avoid using the device with excessive acceleration as it may cause device malfunction. - To ensure accurate posture measurement, turn off “Portrait Orientation Lock” in the iPhone's Control Center. Please visit our iOS app support page for more information on this app.

Screenshots

Skylog Pro4 screens
ClinoScope4 screens

Verdict

The call

The clearest difference is review sentiment: ClinoScope at 100% against Skylog Pro's 43%. ClinoScope also leads on price ($3.99 vs $24.99). Skylog Pro's advantage is update cadence (every 5 months vs every 11 months) and device support (3 vs 1). On ads, in-app purchases and monetization model 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

Skylog Pro costs $24.99 and ClinoScope $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Skylog Pro ships an update every 5 months, ClinoScope every 11 months. The most recent releases landed on September 19, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 5 level
Skylog Pro versus ClinoScope: the parameters behind the verdict, then further details
ParameterSkylog ProClinoScope
Price$24.99$3.99 — better
Rating1.0 (1 ratings) — better—
Positive reviews42.9% of reviews100.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 5 months — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better26.0
Further details — not scored
Size1 MB0 MB
Age rating4+4+
DeveloperAndrew SowerbyTOON,LLC

Customer experience

Skylog Pro

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews14 reviews
Positive42.9%
Neutral21.4%
Negative35.7%

ClinoScope

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Skylog Pro

No in-app purchases

None

ClinoScope

No in-app purchases

Questions

Is Skylog Pro free?
Skylog Pro costs $24.99, with no in-app purchases.
Is ClinoScope free?
ClinoScope costs $3.99, with no in-app purchases.
Do Skylog Pro or ClinoScope have ads?
Neither Skylog Pro nor ClinoScope shows ads.
Which is updated more often, Skylog Pro or ClinoScope?
Skylog Pro ships an update every 5 months, and ClinoScope every 11 months. Most recently, Skylog Pro was updated on September 19, 2026 and ClinoScope on October 3, 2026.

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