Smart Protractor vs ToolX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Protractor
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A simple and accurate tool for measuring angles right on your iPhone. With camera support and image import, you can easily overlay a virtual protractor on real-world objects or photos. Zoom, rotate, and pan with intuitive gestures to get the exact view you need. Whether you’re tackling DIY projects, woodworking, or academic tasks, this app helps you find precise angles quickly and easily. Features: - Import and overlay images for easy angle measurement - Multi-touch controls for zoom, rotation, and panning - Clean, user-friendly interface designed for quick use on the go Perfect for anyone who needs reliable and precise angle measurement anytime, anywhere.
ToolX
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Turn your iPhone or iPad into a professional measuring and sensor toolkit—without the need for any additional hardware. Tools Ultimate Pro combines powerful measuring tools and your phone's sensors into one smart, all-in-one app. Instantly measure length, angles, pressure, tilt, metal detection, and more—perfect for learning, engineering, crafting, and everyday life. Key Features: • Ruler (Perpendicular): Measure length or height directly on the screen with realistic calibration. • Protractor (Half Circle): Quickly measure angles with an easy-to-use visual interface. • 360° Protractor: Measure full angles—perfect for technical or graphic work. • Diameter Tool: Accurately measures circular or cylindrical objects. • Level: Checks the evenness of surfaces like shelves, paintings, and furniture. • Compass: Determines true directions (north, south, east, west)—useful for navigation and travel. • Sensor Dashboard: Displays real-time sensor data (accelerometer, light, pressure, magnetic). • Metal Detector: Detect metals using the device's magnetic field sensor. • Barometer: Measure air pressure for weather tracking and scientific research. • Gravity Sensor: Display gravitational acceleration at your location. • Accelerometer: Track real-time movement, inclination, and vibration. • Pedometer: Automatically calculates steps, distance, and daily calories. • Object Ruler: Place objects on the screen to easily measure and save dimensions. Why Choose **Tools Ultimate Pro**: • Save money and space—Replace multiple tools with a single app. • Works offline—Use anytime, anywhere. • High accuracy—Powered by your device's built-in sensors. • Versatile—Suitable for education, engineering, construction, design, crafts, or travel. • Simple interface—Easy to use for everyone. • Trusted worldwide by students, engineers, and creatives. • Regular updates—Enhanced accuracy, new tools, and a better experience. Updates: * Bug fixes * Improved user experience and ruler logic Download **Tools Ultimate Pro** now and discover the most powerful suite of smart measurement and sensors on your iPhone or iPad. Measure anything, anytime—with professional precision.
Screenshots
Verdict
The clearest difference is in-app purchases: ToolX at none against Smart Protractor's 2. On price, update cadence, 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. Smart Protractor sells 1 one-off in-app purchase. ToolX asks for nothing beyond the download.
Smart Protractor ships an update every 2 weeks, ToolX every 3 weeks. Both last shipped on October 30, 2026.
| Parameter | Smart Protractor | ToolX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.2 | 16.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 63 MB |
| Age rating | +4 | 4+ |
| Developer | Jun Yamabe | Ngoc Thanh Pham |
In-app purchases
Smart Protractor
- Remove Ads2 variants$2.99
ToolX
No in-app purchases
Questions
Is Smart Protractor free?
Is ToolX free?
Do Smart Protractor or ToolX have ads?
Which is updated more often, Smart Protractor or ToolX?
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