Comparison

Piping Engineer's Toolbox vs OBDThink

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Piping Engineer's Toolbox

Features
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Piping Engineer's Toolbox delivers instant, reliable access to comprehensive dimensional, weight, and design data for 72 standard ASME piping components — right at your fingertips. Trusted by engineers and companies worldwide, Piping Engineer's Toolbox has built its reputation on accuracy, consistency, and up-to-date technical data. The app provides detailed specifications aligned with the latest ASME standards, covering Metric, U.S. Customary, and Inch Fraction units across NPS and DN pipe sizes. From pipes and valves to flanges and fittings, Piping Engineer's Toolbox puts everything you need for engineering and field work in one place. Key Features: Extensive ASME specifications, including pipe dimensions (ASME B36.10M/19M-2004), flanges (ASME B16.5-2013), and fittings (ASME B16.9-2007) Full support for welded, threaded, and socket-welded fittings Detailed valve dimensions and weights for gate, globe, butterfly, check, and control valves Non-metallic rings, spiral wound gaskets, and RTJ rings for multiple flange types Complete weight data for pipes, flanges, and valves across various configurations Built for professionals in the piping and engineering industries, Pipedata combines precision, speed, and versatility in one intuitive, easy-to-navigate app. In-App Purchase: Lifetime Premium Privacy Policy: https://privacypolicy50.wordpress.com/privacy-policy-subscription/ Terms & Conditions: https://privacypolicy50.wordpress.com/terms-and-condition/

About

OBDThink

Features
Read full description

Advanced Diagnostics for G-Series OBDThink is a professional-grade diagnostic and real-time data monitoring solution, specifically optimized for compatible vehicles. By providing full access to your vehicle's digital architecture, it offers dealer-level insights and tracking capabilities right from your smartphone. Why OBDThink? Designed to integrate seamlessly with the complex electronic systems of modern G-Series models, OBDThink allows you to read detailed OEM fault codes and specific data parameters that standard OBD2 scanners simply cannot access. Key Features: Expertise: Fully tested and optimized for G-Series vehicles for maximum reliability. ECU Coding & Customization: Provides a user-friendly interface to personalize vehicle behavior by accessing existing parameters. Tailor your car’s comfort and convenience functions with ease. Deep Diagnostics: Scan electronic control units (ECU) to read and clear manufacturer-specific fault codes (DTCs). Comprehensive Live Data: Monitor critical engine parameters such as oil temperature, boost pressure, and torque values with real-time gauges. Service Maintenance: Reset service intervals for oil changes, brake pads, and microfilters directly through the app. Battery Registration: Easily register and code a new battery to your vehicle’s system. Ethanol (Flex Fuel) Monitoring: Supports fuel ethanol content (%E) monitoring via compatible Bluetooth LE sensors for users with supported hardware. Hardware Requirements: To use this application, a compatible OBD-II Bluetooth adapter is required. Disclaimer: All product names, logos, and brands are property of their respective owners. This application is an independent third-party tool and is not affiliated with, sponsored by, or endorsed by any vehicle manufacturer. About Subscriptions: OBDThink Premium provides access to advanced diagnostic and maintenance features. Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period at the rate of your selected plan. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Plans: Lifetime: $79.99 (One-time purchase) Annual: $49.99 Monthly: $12.99 Weekly: $6.99 Privacy Policy: https://obdthink.com/privacy-policy Terms of Use: https://obdthink.com/terms

Screenshots

Piping Engineer's Toolbox4 screens
OBDThink4 screens

Verdict

The call

The clearest difference is price: OBDThink at Free against Piping Engineer's Toolbox's $4.99. OBDThink also leads on update cadence (every 3 weeks vs every 21 months). Piping Engineer's Toolbox's advantage is in-app purchases (none vs 4) and iOS requirement (15.6 vs 17.6). On 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

CostPrice · In-app purchases · Ads · Monetization

OBDThink is free to download; Piping Engineer's Toolbox costs $4.99 up front. OBDThink sells 4 in-app purchases, starting at $6.99 per 7 days. Piping Engineer's Toolbox asks for nothing beyond the download.

UpkeepUpdate frequency

Piping Engineer's Toolbox ships an update every 21 months, OBDThink every 3 weeks. The most recent releases landed on September 19, 2026 and September 8, 2026 respectively.

Scorecard4 real differences · 2 level
Piping Engineer's Toolbox versus OBDThink: the parameters behind the verdict, then further details
ParameterPiping Engineer's ToolboxOBDThink
Price$4.99Free — better
Update frequencyEvery 21 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size57 MB43 MB
Age rating4+4+
DeveloperAshvin KevadiyaTOPRAK TEKIN

In-app purchases

None

Piping Engineer's Toolbox

No in-app purchases

4 purchases

OBDThink

Subscriptions3
  • OBDThink Tam Sürüm Haftalık paket$6.997 Days
  • OBDThink Tam Sürüm Aylık paket$12.991 Month
  • OBDThink Tam Sürüm Yıllık paket7 Days trial$44.991 Year
One-time1
  • OBDThink Tam Sürüm$79.99

Questions

Is Piping Engineer's Toolbox free?
Piping Engineer's Toolbox costs $4.99, with no in-app purchases.
Is OBDThink free?
OBDThink is free to download, with in-app purchases available.
Do Piping Engineer's Toolbox or OBDThink have ads?
Neither Piping Engineer's Toolbox nor OBDThink shows ads.
Which is updated more often, Piping Engineer's Toolbox or OBDThink?
Piping Engineer's Toolbox ships an update every 21 months, and OBDThink every 3 weeks. Most recently, Piping Engineer's Toolbox was updated on September 19, 2026 and OBDThink on September 8, 2026.

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