Angle Gradient Inclinometer vs LUX
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
Read full descriptionHide full description
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 % )
LUX
Measure ambient light levels in lux or foot-candles instantly. Track minimum, average, and maximum readings, and analyze color temperature. Useful for photography, plant care, and general environmental assessment.
- Instant illuminance measurement
- Color temperature (CCT) reading
- Min/Avg/Max lux tracking
- Foot-candle unit option
- Measurement history
- CSV/PDF export (Premium)
Read full descriptionHide full description
LUX is a light meter app that measures illuminance (lux) wherever you are. Open the app and instantly see how bright your space is. When to use it - Check lighting in your living room, office, or study area - Set up photography or video shoots - Compare brightness between rooms or times of day - Verify light levels for plants or aquariums - Confirm any task has the right brightness Features - Instant measurement on launch - Hold the value or freeze the screen - Color temperature (CCT / Kelvin) measurement - Auto-recorded Min / Avg / Max lux during a session - Foot-candle (fc) unit toggle - Compare with reference levels by scene (some features need Premium) - Measurement history (up to 3 records free; unlimited history, including saved Min / Avg / Max, with Premium) - CSV / PDF export (Premium) - PPFD / DLI calculation for plants (Premium) - Continuous logging with charts (Premium) Measurements are processed on-device. Terms of Use: https://kojitorishima.org/en/products/lux/terms/ Privacy Policy: https://kojitorishima.org/en/products/lux/privacy/
Screenshots
Verdict
The clearest difference is rating: LUX at 5.0 against Angle Gradient Inclinometer's 4.3. LUX also leads on update cadence (every 2 weeks vs every 8 months) and review sentiment (60% vs 51%). Angle Gradient Inclinometer's advantage is in-app purchases (none vs 3) and ratings volume (314 vs 1). On price, ads 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. LUX sells 3 in-app purchases, starting at $1.99 per month. Angle Gradient Inclinometer asks for nothing beyond the download.
LUX holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Angle Gradient Inclinometer has 314 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 51% of Angle Gradient Inclinometer's written reviews are positive against 60% of LUX's.
Angle Gradient Inclinometer ships an update every 8 months, LUX every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Angle Gradient Inclinometer | LUX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (314 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 51.1% of reviews | 60.0% of reviews — better |
| Number of ratings | 314 — better | 1 |
| Update frequency | Every 8 months | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13 — better | 18.0 |
| Further details — not scored | ||
| Size | 11 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | SHIGETO TAKAGI | koji torishima |
Customer experience
Angle Gradient Inclinometer
LUX
In-app purchases
Angle Gradient Inclinometer
No in-app purchases
LUX
- Monthly Plan7 Days trial$1.991 Month
- Yearly Plan7 Days trial$11.991 Year
- Premium Lifetime$24.99
Questions
Is Angle Gradient Inclinometer free?
Is LUX free?
Which has better reviews, Angle Gradient Inclinometer or LUX?
Do Angle Gradient Inclinometer or LUX have ads?
Which is updated more often, Angle Gradient Inclinometer or LUX?
Other comparisons
