Piping DataBase vs Arc Calculations
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Piping DataBase
This app provides a mobile reference for pipe flange specifications, including dimensions, bolt details, and types. It's designed for professionals and students in industries like oil & gas and petrochemicals, offering unit conversion between US Customary and SI.
- Pipe flange specifications
- Large diameter flange support
- Multiple flange types
- Bolt count, diameter, and length
- Raised Face (RF) and Ring Type Joints (RTJ)
- US Customary and SI unit conversion
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A handy mobile reference tool for Piping Engineers, Mechanical Engineers, Designers, Draftsmen, Pipe Fitters, Students and more for the Oil & Gas Industry, Petrochemical & Manufacturing Plants as well as Design Engineering Consulting Companies. This application covers the B16.5 & B16.47 Pipe Flanges (in-app purchase) - another Piping DataBase series. User interface is presented in an easy one page set up, interchangeable to both US Customary Units and SI Units by scrolling the pickers and touching the button switch. Features: *** Pipe Flanges in all class ratings*** ***including large diameter flanges (26" ~ above)[ in-app purchase - B16.47]*** *** Welding Neck, Threaded, Lapped, Blind, Slip-On & Socket Welding*** *** including no. of bolts, bolt diameter & length *** *** Raised Face (RF) & Ring Type Joints (RTJ) *** Note: More piping components at Piping DataBase – Xtreme: includes Pipe Schedules, Fittings, Valves, Line Blanks, Branch Connections and Flanges. All in one app!
Arc Calculations
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This app is used to Calculate Arc Length, Arc Angle, Arc Radius, Arc Cord, Arc Depth, Arc Tangent, Arc Segment Area, Arc Sector Area etc. App features: 1. No Internet Requirement. 2. No Irritating Ads. 3. Fabrication Friendly. 4. Higher Performance. This Tool is useful in fabrication Filed. Arc Length Calculator - In this app This Tool calculate arc length by using arc radius and arc angle. Arc Radius Calculator - This tool is calculate arc radius by using arc angle and arc length. Arc Angle calculator - This Tool is calculate arc angle by using arc radius and arc length. Arc Depth Calculator - This tool Calculate Arc Depth by using radius and angle Arc Tangent Height Calculator - This tool Calculate Arc Tangent Height Calculator by using Arc Radius and Arc Angle. Arc Sector Area Calculator - This Tool Calculate Arc Sector area by using arc Angle and arc Radius Arc Segment Area Calculator - This Tool calculate Arc Segment Area by Using Arc Angle and Radius In this app Arc Angle and Arc Radius is used as input. angle is used in Degree for Calculation. This app is Very useful in fabrication Field. it required to calculate all arc calculation when we are doing Marking or we had required to calculate dimension while studying Engineering Drawings. It is very helpful in Process Equipment fabrication, Piping, Engineering Drawings, Pressure Vessels fabrication, Heat Ex-changer Fabrication, Machining Process. Keywords - Arc, Circle, Geometry, Fabrication, Cord length, PCD, Degree, Radians, Engineering, Drawing, Area, Arc Radius, Radius, Angle, Pressure Vessel
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Verdict
The clearest difference is in-app purchases: Arc Calculations at none against Piping DataBase's 1. Arc Calculations also leads on price ($2.99 vs $3.99). Piping DataBase's advantage is update cadence (every 3 months vs every 56 months) and chart position (#184 vs unranked). 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
Piping DataBase costs $3.99 and Arc Calculations $2.99 up front. Piping DataBase sells 1 one-off in-app purchase. Arc Calculations asks for nothing beyond the download.
Piping DataBase ships an update every 3 months, Arc Calculations every 56 months. The most recent releases landed on September 4, 2026 and September 15, 2026 respectively.
| Parameter | Piping DataBase | Arc Calculations |
|---|---|---|
| Price | $3.99 | $2.99 — better |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months — better | Every 56 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Best chart rank | #184 — better | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Radin Alcira | Imran Pinjara |
In-app purchases
Piping DataBase
- Flanges B16.47$1.99
Arc Calculations
No in-app purchases
Questions
Is Piping DataBase free?
Is Arc Calculations free?
Do Piping DataBase or Arc Calculations have ads?
Which is updated more often, Piping DataBase or Arc Calculations?
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