BITEKEEPER vs NDT Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BITEKEEPER
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BITEKEEPER is a smart alarm application developed by Rippton Smart Fishing Gear. The app allows you to easily control the functions of Rippton's alarms, such as volume, tone, sensitivity and light color.
NDT Master
This app streamlines ultrasonic testing for field inspections. It offers rapid weld rating, DAC/TCG curve building, 3D beam simulation, and OCR parameter capture. Includes essential UT calculators and material presets for efficient flaw detection and setup confidence.
- AWS D-Rating in 5 Seconds
- DAC/TCG Curve Building
- 3D Beam Simulation
- OCR Parameter Capture
- 9 UT Calculators
- Offline-First Workflow
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NDT Master is built for field ultrasonic testing workflows. It brings AWS D-Rating, DAC/TCG curve building, 3D beam simulation, OCR parameter capture, and practical UT calculators into one offline-first app. Core field workflows - AWS D-Rating in 5 Seconds: Fast weld indication workflow for field UT - Build DAC/TCG Curves Fast: Plot reference echoes and gain table instantly - Scan Readings. Auto-Fill Parameters.: OCR maps velocity, MHz and dB in seconds - Locate Flaws Faster: Instant depth and projection outputs - Critical Angles at a Glance: Snell + beam spread for setup confidence - Beam Spread You Can Trust: Visualize setup impact before inspection starts Tools included - 9 UT calculators: Wavelength, Near Field, Beam Spread, Flaw Location, Snell's Law, ToFD PCS, dB Calc, Acoustic Impedance, Resonance. - Material presets for steel, aluminum, stainless steel, and common inspection setup. - Code-aware workflows for weld inspection decisions, with AWS and ASME terminology kept visible. Offline and private - Built for Real Field Work: Local data, no account, offline-first workflow
Screenshots
Verdict
The clearest difference is in-app purchases: BITEKEEPER at none against NDT Master's 1. BITEKEEPER also leads on iOS requirement (13 vs 15). NDT Master's advantage is update cadence (every 2 weeks vs monthly). 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. NDT Master sells 1 one-off in-app purchase. BITEKEEPER asks for nothing beyond the download.
BITEKEEPER ships an update monthly, NDT Master every 2 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | BITEKEEPER | NDT Master |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 13 — better | 15 |
| Further details — not scored | ||
| Size | 103 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Ningbo Pelican Drone Co., Ltd. | 雪 蔺 |
In-app purchases
BITEKEEPER
No in-app purchases
NDT Master
- Professional Unlock$9.99









