Protractor vs 金属表面缺陷检测
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protractor
Measure angles precisely using your phone's screen, gyroscope, or camera. Offers smart presets, real-time feedback with high accuracy, and calibration features to adapt to various situations.
- 3-in-1 measurement modes
- Smart angle presets with alerts
- Hyper-responsive feedback (≤0.5° accuracy)
- Auto dynamic compensation calibration
- Anti-shake technology for motion scenes
- Screen lock for measurements
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Ditch bulky tools! Measure angles precisely anywhere with just your phone. *** Features *** ► Full-Scene Precision Measurement * 3-in-1 Modes: Screen Protractor / Gyroscope Protractor/ Camera Protractor, adapt to different scenarios. * Smart Angle Preset: Input target angles for instant deviation alerts. * Hyper-Responsive Feedback: Real-time tracking with ≤0.5° accuracy. ► Triple-Calibration Assurance * Auto Dynamic Compensation: Device-position-aware baseline calibration * Anti-Shake Tech: 80% accuracy boost in motion scenes (Gyroscope Mode) * Screen lock: Freeze measurements instantly to prevent accidental touches. ► Contact Us * Email: ceo@noadit.com
金属表面缺陷检测
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Metal Defect Detector - Professional AI-Powered Inspection Tool 【Key Features】 • AI Deep Learning Model, supports 10 defect types recognition • 90%+ detection accuracy, millisecond inference speed • Real-time camera detection, 30 FPS smooth experience • Fully offline, your data never leaves your device • One-tap professional PDF report generation 【Use Cases】 • Industrial quality inspection • Production line sampling • Incoming material inspection • Final product inspection 【Supported Defect Types】 Scratches, Dents, Spots, Cracks, Inclusions, Oxidation, Corrosion, Deformation, Pores, Other defects 【Subscription】 • Monthly: ¥28/month • Yearly: ¥88/year (Save 74%) 【Pro Features】 • Unlimited detection • PDF report export • Permanent history storage • Advanced statistics • Priority support Privacy Policy: https://your-privacy-policy-url.com Support: https://your-support-url.com
Screenshots
Verdict
The clearest difference is price: Protractor at Free against 金属表面缺陷检测's $89.99. Protractor also leads on device support. 金属表面缺陷检测's advantage is iOS requirement (15.0 vs 17.0). On in-app purchases 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
Protractor is free to download; 金属表面缺陷检测 costs $89.99 up front. Protractor sells 6 in-app purchases, starting at $4.99 per month and 金属表面缺陷检测 sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Protractor | 金属表面缺陷检测 |
|---|---|---|
| Price | Free — better | $89.99 |
| Rating | 1.8 (6 ratings) — better | — |
| Positive reviews | 63.6% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 5 weeks | — |
| Ads | No | — |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | — |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Noadit, Inc. | 亮 陈 |
In-app purchases
Protractor
- VIP3 Days trial$4.991 Month
- Bubble Tea$0.99
- Sponsor$4.99
- Coffee$4.99
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- Sponsor$19.99
- Sponsor$99.99
金属表面缺陷检测
- 月度订阅$3.991 Month
- 年度订阅$12.991 Year
