Ruler ++ vs Angle Gradient Inclinometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruler ++
This app allows you to measure lengths accurately in both inches and centimeters. It provides a simple and straightforward tool for quick measurements.
- Measure in inches
- Measure in centimeters
- Accurate length measurement
- Simple interface
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Measure length in inches and cm.
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 % )
Screenshots
Verdict
The clearest difference is rating: Angle Gradient Inclinometer at 4.4 against Ruler ++'s 3.5. Angle Gradient Inclinometer also leads on review sentiment (51% vs 15%) and in-app purchases (none vs 1). Ruler ++'s advantage is ads (none vs shown) and ratings volume (934 vs 295). On price, update cadence 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. Ruler ++ sells 1 one-off in-app purchase. Angle Gradient Inclinometer asks for nothing beyond the download.
Angle Gradient Inclinometer holds the better App Store score, 4.4 against 3.5. Both are backed by a comparable volume of ratings — 934 and 295 respectively. Written reviews point the same way: 15% of Ruler ++'s written reviews are positive against 51% of Angle Gradient Inclinometer's.
Ruler ++ ships an update every 5 months, Angle Gradient Inclinometer every 8 months. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.
| Parameter | Ruler ++ | Angle Gradient Inclinometer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (934 ratings) | 4.4 (295 ratings) — better |
| Positive reviews | 14.9% of reviews | 51.1% of reviews — better |
| Number of ratings | 934 — better | 295 |
| Update frequency | Every 5 months — better | Every 8 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 8.0 — better | 13 |
| Further details — not scored | ||
| Size | 17 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Fapps World et Cie S.E.C.S. | SHIGETO TAKAGI |
Customer experience
Ruler ++
Angle Gradient Inclinometer
Bugs and requests
Ruler ++
Reported bugs
3 issues- Ruler markings are incorrect
- Ruler not displaying full length on screen
- Incompatible with newer iPhone models
Requested features
3 requests- Add ability to calibrate ruler for different devices
- Improve accuracy of measurements
- Reduce or remove ads
Angle Gradient Inclinometer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ruler ++
- Advertisement-free upgrade$0.99
Angle Gradient Inclinometer
No in-app purchases
Questions
Is Ruler ++ free?
Is Angle Gradient Inclinometer free?
Which has better reviews, Ruler ++ or Angle Gradient Inclinometer?
Do Ruler ++ or Angle Gradient Inclinometer have ads?
Which is updated more often, Ruler ++ or Angle Gradient Inclinometer?
Other comparisons
