Comparison

PerspCamera vs Vibration Detector

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

Head to head
About

PerspCamera

This utility app assists in creating perspective drawings by using device tilt to calculate perspective lines. It allows users to draw horizontal lines, vanishing points, grids, and cubes based on calculated perspective. Users can set the device's tilt by placing it on a sloped surface and tapping a button.

Highlights
  • Perspective calculation from device tilt
  • Draw horizontal lines
  • Vanishing points
  • Grid generation
  • Arbitrary cube drawing
  • Set tilt via device placement
Features
Read full description

This app records the perspective calculated from the iPhone's tilt angle at the time of shooting directly onto the photo. In the current version, you can draw horizontal lines, vertical lines, 45° lines, as well as grids, cubes, and rectangular solids. When you want to find the perspective of a slope, just place your iPhone on the inclined surface and press the SetTilt button! You can choose from two saving methods: drawing the perspective overlay on the photo and saving it as one image, or saving the photo and perspective as separate images. * Before use, you need to configure the angle of view using an actual horizon line.

About

Vibration Detector

This app transforms your device into a high-grade vibration analyzer. It measures and records vibrations across three axes, offering real-time monitoring, customizable thresholds, and data logging for mechanical health analysis.

Highlights
  • Real-time vibration monitoring
  • Dual-threshold logic for logging and alarming
  • Data logging with timestamps
  • Stealth mode for battery saving
  • Multi-unit support (g, in/s, mm/s)
  • Intuitive one-handed UI
Features
Read full description

Vibration detector or Seismograph uses accelearation sensor to measure vibration or an earthquake, and it shows a reference as a seismic detector. Detect vibration and record it. Vibration detector transforms your iPhone into a high-grade industrial vibration analyzer. Built for technicians, engineers, and DIY enthusiasts, this app leverages the advanced MEMS accelerometer in your device to monitor, alarm, and log mechanical health in real-time. Vibration Detector or Vibration Meter measures vibrations using your device’s sensors on all 3 axes: X, Y, Z and shows reference to earthquake vibrations (seismograph, body tremor, seismometer). Vibration Meter can also be called seismograph or seismometer when used for measuring seismic activity. Features: - Record vibrations with time and date. - Set a vibration level threshold for recording. - Play a sound when the vibration threshold is reached. - Dim screen option for battery saving. - Lightweight app with a small size, optimized for everyday use. - Real-Time Precision Monitoring Get instant readouts of vibration magnitude. Our sensor fusion algorithm filters out gravity to give you the most accurate "true vibration" data across X, Y, and Z axes. - Multi-Unit Support Switch seamlessly between industry-standard units. Whether you prefer G-Force (g), Velocity in inches per second (in/s), or millimeters per second (mm/s), the app converts all data and thresholds instantly. - Dual-Threshold Logic Total control over your data. Set a Log Threshold to automatically record peaks for later analysis, and a separate Alarm Threshold to trigger a system-standard audible warning when vibrations reach critical levels. - The "Vibration Sheet" (Data Logger) Every significant event is timestamped and recorded in a dedicated history sheet. Manage your data with ease using swipe-to-delete or the "Clear All" function for new sessions. - Stealth "Detach" Mode Designed for long-term monitoring. Tap the Dim button to turn the screen completely black and drop brightness to zero. This saves battery and prevents screen burn-in while the device is taped or clamped to machinery. A single tap brings the UI back instantly. - Intuitive "Bottom-Control" UI Engineered for one-handed use in the field. All sliders, unit toggles, and start buttons are positioned at the bottom of the screen, keeping the massive center readout unobstructed. How to Use 1. Mount: Secure your iPhone firmly to the surface you wish to measure. 2. Set: Adjust your Log and Alarm sliders based on your required sensitivity. 3. Start: Hit "Start Monitoring" to begin the live feed. 4. Dim: If recording for a long period, tap the Moon icon to enter Stealth Mode. 5. Review: Open the Vibration History sheet to analyze the captured peaks and timestamps. *This is a universal app that work for both iPhone and iPad. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

Screenshots

PerspCamera4 screens
Vibration Detector4 screens

Verdict

The call

The clearest difference is price: Vibration Detector at $2.99 against PerspCamera's $9.99. PerspCamera's advantage is update cadence (every 3 months vs every 53 months) and review sentiment (20% vs 0%). 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

PerspCamera costs $9.99 and Vibration Detector $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PerspCamera ships an update every 3 months, Vibration Detector every 53 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard3 real differences · 7 level
PerspCamera versus Vibration Detector: the parameters behind the verdict, then further details
ParameterPerspCameraVibration Detector
Price$9.99$2.99 — better
Rating—3.0 (2 ratings) — better
Positive reviews20.0% of reviews — better0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 3 months — betterEvery 53 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.6 — better16
Further details — not scored
Size2 MB2 MB
Age rating4+4+
DeveloperTomohiro YamashitaNitrio

Customer experience

PerspCamera

Written reviews10 reviews
Positive20.0%
Neutral10.0%
Negative70.0%

Vibration Detector

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

PerspCamera

No in-app purchases

None

Vibration Detector

No in-app purchases

Questions

Is PerspCamera free?
PerspCamera costs $9.99, with no in-app purchases.
Is Vibration Detector free?
Vibration Detector costs $2.99, with no in-app purchases.
Do PerspCamera or Vibration Detector have ads?
Neither PerspCamera nor Vibration Detector shows ads.
Which is updated more often, PerspCamera or Vibration Detector?
PerspCamera ships an update every 3 months, and Vibration Detector every 53 months. Most recently, PerspCamera was updated on November 1, 2026 and Vibration Detector on November 2, 2026.

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