Comparison

Quail Tools vs Flange Bolt Size & Torque

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

Head to head
About

Quail Tools

Access essential specifications for Tubulars, BOPs, and API Casing offline. View detailed data like tool joint OD, make-up torque, and pressure ratings. Share spec sheets when an internet connection is available.

Highlights
  • Offline access to Tubular and BOP specs
  • API Casing General Information table
  • Detailed spec sheets for equipment
  • Shareable spec sheets (online)
  • Save spec sheets to device
  • Tool joint OD, ID, torque, tensile
  • BOP pressure rating, bonnet type, operating data
Features
Read full description

The app allows users to select Tubulars or BOPS to view specs. Users will also have access to our newly added API Casing General Information table. The initial page will allow the user to select between three sections of the app: Tubulars, BOPs, or Casing. Upon selecting "Tubulars" or "BOPs, the user will be presented with a built in table that contains essential information. Therefore, it does not require an internet connection to function! This will allow for constant, unhindered access to tubular and BOP information such as: tool joint OD, tool joint ID, max make up torque, premium tensile, BOP height, BOP weight, BOP pressure rating, BOP bonnet type, BOP operating data, and BOP shear testing videos. Upon selecting the "API Casing - General Information" button, the user will have access to a built in table containing standard API casing information. You can now view essential specs in areas where there is little or no cell phone reception. When selecting "Tubulars" or "BOPs", simply tap the item to view the spec sheet. This retrieves the spec sheet from our website, which can be shared using the button on the top right. (Please note: this function does require an internet connection). From there, the spec sheet can also be saved to your phone, or any handled via another app. We hope you enjoy this app as much as we have. Please feel free to provide feedback via the contact us button in the app.

About

Flange Bolt Size & Torque

Instantly access flange, pipe, and bolt data offline. Quickly find bolt sizes, torque patterns, flange dimensions, and pipe specifications. Ideal for pipefitters and steamfitters needing rapid access to piping information.

Highlights
  • Offline data access
  • Instant data lookups
  • Flange bolting data
  • Flange dimensions data
  • Pipe data
  • Gasket data
  • Torque pattern images
Features
Read full description

Lookup flange, pipe, and bolt data in seconds with Flange Bolt Chart. All data is available offline, lookups are instantaneous. Here's just a sample of the available data. Flange bolting data: 1. Number of bolts 2. Diameter of bolts 3. Length of bolts 4. Wrench size 5. Torque pattern 6. Target torque Flange dimensions data: 1. Outside diameter of flange 2. Flange thickness 3. Diameter of bolt circle 4. Flange weight Pipe data: 1. Outside diameter 2. Wall thickness 3. Schedule 4. Weight 5. Weight with liquid Gasket data: 1. Gasket inside diameter 2. Gasket outside diameter 3. Spiral wound dimensions 4. Type R ring dimensions And many more fields. All values are calculated or sourced directly from official standards like ASME B16.5 "Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard". Looking up flange, pipe, and bolt data with Flange Bolt Chart is far faster and less error prone than searching through PDF charts and tables. The sole purpose of the tool is to make it as simple as possible for pipefitters, steamfitters, and others working in piping to look up piping information like flange bolt size and torque pattern. Is there a feature you'd like from Flange Bolt Chart that you don't see? Request it through the app and we'll do our best to add it to the development schedule. Features of the app: 1. Full offline capability: No internet connection necessary to use. All data is stored locally on your phone. (The app requires minimum storage space overall) 2. Instant data lookups. Just enter the necessary inputs (like nominal pipe size and flange class) and the app instantly populates the correct values for the flange, pipe, or bolt outputs you’re searching for. 3. Flange torque sequence images: Includes the full list of torque sequences in picture form, with the studs numbered. The information in this app covers, but is not limited to: (1) flanges with rating class designations 150, 300, 400, 600, 900, and 1500 in sizes NPS 1/2 through NPS 60 and flanges with rating class designation 2500 in sizes NPS 1/2 through NPS 12, with requirements given in U.S. Customary units with diameter of bolts and flange bolt holes expressed in inch units; (2) flanged fittings with rating class designation 150 and 300 in sizes NPS 1/2 through NPS 60, with requirements given in U.S. Customary units with diameter of bolts and flange bolt holes expressed in inch units; (3) flanged fittings with rating class designation 400, 600, 900, and 1500 in sizes NPS 1/2 through NPS 60 and flanged fittings with rating class designation 2500 in sizes NPS 1/2 through NPS 12 in U.S. Customary units. Covers 4 bolt to 60 bolt sequences. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Quail Tools4 screens
Flange Bolt Size & Torque4 screens

Verdict

The call

The clearest difference is in-app purchases: Quail Tools at none against Flange Bolt Size & Torque's 2. Quail Tools also leads on review sentiment (100% vs 65%) and rating (5.0 vs 4.6). Flange Bolt Size & Torque's advantage is ratings volume (374 vs 22). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flange Bolt Size & Torque sells 2 in-app purchases, starting at $4.99 per 3 months. Quail Tools asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Quail Tools holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Flange Bolt Size & Torque has 374 ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 100% of Quail Tools's written reviews are positive against 65% of Flange Bolt Size & Torque's.

UpkeepUpdate frequency

Quail Tools ships an update every 5 weeks, Flange Bolt Size & Torque monthly. Both last shipped on November 3, 2026.

Scorecard6 real differences · 4 level
Quail Tools versus Flange Bolt Size & Torque: the parameters behind the verdict, then further details
ParameterQuail ToolsFlange Bolt Size & Torque
PriceFreeFree
Rating5.0 (22 ratings) — better4.6 (374 ratings)
Positive reviews100.0% of reviews — better65.2% of reviews
Number of ratings22374 — better
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size50 MB31 MB
Age rating4+4+
DeveloperAustin AngelleOpen Source Consulting LLC

Customer experience

Quail Tools

All ratings22 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Flange Bolt Size & Torque

All ratings363 ratings
Positive89.5%
Neutral2.2%
Negative8.3%
Written reviews46 reviews
Positive65.2%
Neutral0.0%
Negative34.8%

Bugs and requests

Quail Tools

Not enough reviews yet to summarise bugs or requests.

Flange Bolt Size & Torque

Reported bugs

6 issues
  • App stopped working, requires resubscription
  • App will not open after latest update
  • App is broken
  • Black screen and grey bar in the middle
  • Wrench sizes don't match up on some flanges
Show 1 more
  • Torque patterns on some flanges are off

Requested features

7 requests
  • Add Code 61/62 flange information
  • Include machined bolt sizes
  • Add torquing equipment info (rad guns, J gun, etc.) and usage instructions
  • Include CGI and CG torque specs for different gasket styles
  • Add support for larger flange sizes (beyond 60")
Show 2 more
  • Add RTJ selection
  • Availability on Windows tablet

In-app purchases

None

Quail Tools

No in-app purchases

2 purchases

Flange Bolt Size & Torque

Subscriptions1
  • Flange Bolt Professional$4.993 Months
One-time1
  • Suggested Torque$0.99

Questions

Is Quail Tools free?
Quail Tools is free to download, with no in-app purchases.
Is Flange Bolt Size & Torque free?
Flange Bolt Size & Torque is free to download, with in-app purchases available.
Which has better reviews, Quail Tools or Flange Bolt Size & Torque?
Quail Tools is rated higher. Quail Tools averages 5.0 out of 5 from 22 ratings, while Flange Bolt Size & Torque averages 4.6 from 374 ratings.
Do Quail Tools or Flange Bolt Size & Torque have ads?
Neither Quail Tools nor Flange Bolt Size & Torque shows ads.
Which is updated more often, Quail Tools or Flange Bolt Size & Torque?
Quail Tools ships an update every 5 weeks, and Flange Bolt Size & Torque monthly. Most recently, Quail Tools was updated on November 3, 2026 and Flange Bolt Size & Torque on November 3, 2026.

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