Angle Gradient Inclinometer vs SKTrack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Angle Gradient Inclinometer
Easily measure tilt angles with this free protractor app. It displays inclination from 0 to 359 degrees, along with gradient percentages and angles summing to 180 or 360 degrees. Switch to theodolite mode to set a specified angle to zero.
- Measure tilt angles 0-359 degrees
- Display gradient percentage
- Show sum angles (180/360)
- Theodolite mode
- Set specified angle to zero
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Simple tilt angle protractor free application that can easily measure tilt simply by tilting the device. The angle of inclination measured from 0 degree to 359 degrees, converted gradient (%), angle at which sum is 180 degrees / 360 degrees are displayed at the same time. You can switch to the theodolite, the specified angle can be set to 0 degree. ( 45 Degrees = Gradient 100 % )
SKTrack
This app provides immutable traceability for items by using tamper-evident seals with unique encryption. It records the date, time, and geospatial coordinates of item scanning events, ensuring secure chain of custody from origin to destination.
- Tamper-evident seals
- Immutable traceability
- Unique encryption
- Geospatial coordinate recording
- Chain of custody assurance
- On-location scanning
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That problem is the need to move an "Item/object" from one location to another, have immutable traceability, and the knowledge that the Item went nowhere other than the intended final intended destination. One solution to this problem uses a tamper-evident seal, printed with a SignaKey. Every SignaKey is unambiguously unique, and the encryption used in the SignaKey is the strongest currently available. Tamper-evident seals are commercially available in a variety of configurations. The selection criteria for any application depend on the shape and size of the tracked Item/object. Particularly effective designs of tamper-evident seals employ aggressive adhesives with a bond that becomes permanent within minutes of application, paired with a frangible substrate that is exceptionally tenacious. It is practically impossible to remove this type of label without leaving evidence of interference. One example of Items/objects that would employ this type of solution is Blood and Urine samples collected from thoroughbred horses after a race. These samples check for the presence of illegal performance-changing drugs within the animal. They are taken in the barn/stall by a veterinarian immediately after a race. A tamper-evident seal is attached to the opening of the vial, and the SignaKey immediately decoded. This action records the date/time and geospatial coordinates of the barn/stall. The vial that contains the blood now moves to the certified independent laboratory. The Labs' first action is to confirm that the tamper-evident seal is still intact. If it is, they immediately decode the SignaKey. This action again records the date/time and the geospatial coordinates of the Lab. The combination of "on-location" scanning within SK Track, and the tamper-evident seal, assures the stakeholders that the blood sample taken from the horse immediately after the race is, without doubt, the one presented to the Lab.
Screenshots
Verdict
The clearest difference is rating: SKTrack at 5.0 against Angle Gradient Inclinometer's 4.4. SKTrack also leads on ads (none vs shown) and monetization model (free vs ad-supported). Angle Gradient Inclinometer's advantage is ratings volume (295 vs 1). On price, update cadence, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SKTrack holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Angle Gradient Inclinometer has 295 ratings behind it against 1, so its average is the more settled of the two.
Angle Gradient Inclinometer ships an update every 8 months, SKTrack every 10 months. The most recent releases landed on September 27, 2026 and June 21, 2026 respectively.
| Parameter | Angle Gradient Inclinometer | SKTrack |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (295 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 51.1% of reviews | — |
| Number of ratings | 295 — better | 1 |
| Update frequency | Every 8 months — better | Every 10 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13 — better | 14.1 |
| Further details — not scored | ||
| Size | 11 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | SHIGETO TAKAGI | SignaKey LLC |
Customer experience
Angle Gradient Inclinometer
SKTrack
In-app purchases
Angle Gradient Inclinometer
No in-app purchases
SKTrack
No in-app purchases
Questions
Is Angle Gradient Inclinometer free?
Is SKTrack free?
Which has better reviews, Angle Gradient Inclinometer or SKTrack?
Do Angle Gradient Inclinometer or SKTrack have ads?
Which is updated more often, Angle Gradient Inclinometer or SKTrack?
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