ClinoScope vs Perci
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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"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.
Perci
Create personalized disaster readiness plans for your family with ease. This app generates comprehensive plans for various emergencies, including evacuation, home protection, and pet safety. Stay informed with extreme weather alerts and receive timely reminders to update your plans.
- Personalized readiness plans
- Evacuation and home protection plans
- Pet safety and school safety plans
- Household needs and communication plans
- Extreme weather alerts
- Plan update reminders
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Start with your zip code and family size. Perci will make all the readiness plans for you. In simple small steps. Once completed, forget about it. Perci will remind you when it is time update. Evacuation Plan. Protect Home Plan. Recovery Plan. Pet Safety Plan. School Safety Plan. Disaster Risk. Household Needs. Communication Plan. Shelter in Place Plan. Reliable disaster preparedness plans with total ease. When disaster strikes, you’ll have everything you need in one place, and we’ll guide you the entire way. Perci will get your whole family ready for any disaster - be it wildfires, floods, hurricanes, earthquakes, home fires, tornadoes, tsunamis, landslides, hail, heat waves, ice storms, lightning. Get latest extreme weather alerts. Use Perci for free, forever. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Perci at Free against ClinoScope's $3.99. Perci also leads on update cadence (fortnightly vs every 11 months) and device support (3 vs 1). ClinoScope's advantage is in-app purchases (none vs 6). On review sentiment and ads 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
Perci is free to download; ClinoScope costs $3.99 up front. Perci sells 6 in-app purchases, starting at $3.99 per month. ClinoScope asks for nothing beyond the download.
ClinoScope ships an update every 11 months, Perci fortnightly. Both last shipped on October 24, 2026.
| Parameter | ClinoScope | Perci |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | — | 4.9 (16 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | — | 16 — better |
| Update frequency | Every 11 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 13.2 — better |
| Further details — not scored | ||
| Size | 0 MB | 73 MB |
| Age rating | 4+ | 17+ |
| Developer | TOON,LLC | Perci Ready LLC |
Customer experience
ClinoScope
Perci
In-app purchases
ClinoScope
No in-app purchases
Perci
- Solo Monthly$3.991 Month
- Duo$5.991 Month
- Family$7.991 Month
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- Solo$39.991 Year
- Duo$59.991 Year
- Family$79.991 Year









