Comparison

Nozzle Calculator Pro vs Working Timer

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

Head to head
About

Nozzle Calculator Pro

Features
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Nozzle Calculator is a professional engineering and fabrication tool for calculating nozzle orientation and marking dimensions for pressure vessels, cylindrical shells, storage tanks, and dish ends. The app helps mechanical engineers, pressure vessel designers, fabrication engineers, QA/QC professionals, inspectors, and workshop technicians calculate accurate dimensions required for nozzle positioning, orientation, layout marking, and fabrication inspection. It eliminates repetitive manual calculations and provides quick, clear, and workshop-ready results. Included Calculators • Shell Nozzle Orientation Calculator • Dish Nozzle Orientation Calculator Shell Nozzle Orientation Calculate nozzle marking dimensions on cylindrical pressure vessel shells and tanks. The calculator determines: • Shell Outside Diameter (OD) from OCF • OCF per Degree • OCF for a Selected Nozzle Angle • Nozzle Orientation Marking Dimensions These calculations are useful when transferring nozzle orientation information onto cylindrical shells during fabrication and inspection. Dish Nozzle Orientation Calculate nozzle arc distance and orientation dimensions on pressure vessel dish ends. The calculator supports common pressure vessel head geometries: • 10% Torispherical Head • 2:1 Ellipsoidal Head • Hemispherical Head Enter the required dish geometry and nozzle orientation information to obtain the calculated arc distance and related marking dimensions. Features • Shell nozzle orientation calculation • Dish nozzle orientation calculation • OCF calculation • OCF per degree • Nozzle angle calculation reference • Dish end arc distance calculation • Pressure vessel nozzle marking • Cylindrical shell layout calculations • Supports common dish end geometries • Metric and Imperial unit systems • Automatic internal unit conversion • Fractional Imperial input support • Clear and meaningful output values • Simple professional interface • Fast engineering calculations • No internet connection required Applications Nozzle Calculator is useful for: • Pressure Vessel Fabrication • Storage Tank Fabrication • Process Equipment Manufacturing • Cylindrical Shell Layout • Dish End Fabrication • Nozzle Installation • Vessel Inspection • Fabrication Layout • Industrial Equipment Manufacturing • Plant Maintenance Designed For • Mechanical Engineers • Pressure Vessel Engineers • Design Engineers • Fabrication Engineers • Production Engineers • QA/QC Engineers • Inspection Engineers • Fabrication Supervisors • Workshop Professionals • Vessel Fabricators • Engineering Students Nozzle Calculator helps reduce manual calculation work, minimize layout errors, save fabrication time, and improve accuracy when marking nozzle positions and orientations on pressure vessel shells and heads. Whether you are working on a cylindrical shell, storage tank, torispherical head, 2:1 ellipsoidal head, or hemispherical head, Nozzle Calculator provides a convenient engineering tool for nozzle orientation and fabrication marking calculations.

About

Working Timer

Track work hours, attendance, overtime, and project time with this intuitive app. It offers features like reminders, GPS tracking, and report export to keep you organized and in control of your work data.

Highlights
  • Time tracking and attendance
  • Overtime and earnings calculation
  • Project and activity tracking
  • Report export (PDF/Excel)
  • GPS geofencing and location tracking
  • Reminders and smart notifications
  • Cloud sync and backup
Features
Read full description

Track work hours, attendance, overtime, breaks, and project time in one simple app. Working Timer is a powerful and easy-to-use time tracker, timesheet, and attendance app for employees, freelancers, and companies. Keep a clear overview of worked hours, earned money, shifts, leave, and reports — whether you are tracking your own time or managing multiple work profiles. Track daily work time with just a few taps, organize records by projects and activities, calculate earnings, and export professional attendance reports or work reports in PDF or Excel. With support for reminders, GPS features, Apple Watch, cloud sync, and location-based records, Working Timer helps you stay accurate, organized, and in control. Why users choose Working Timer - Easy and clear timesheet for daily work hours - Attendance tracking for employees and teams - Overtime overview and earned money calculation - Helpful reminders for work start, work end, breaks, overtime, and missing punches - Shift and schedule support - Attendance reports and report export in PDF or Excel - Cloud sync and secure backup across devices - GPS geofencing, optional GPS location on records, and map view - Apple Watch support for faster time tracking - Simple manual editing and bulk insert of records ----------------- Main features ----------------- Time tracking & attendance - Simple table of worked hours - Daily, weekly, monthly, and 14-day work hour overview - Up to 5 profiles (more with premium version) - Attendance tracking - Overtime overview - Easy manual edits - Notes for any day - Bulk insert of records - Record templates - Attachments for a record, profile, project - Soft kiosk mode Reminders & smart notifications - Start work reminder - End work reminder - Break start and break end reminders - Overtime alerts - Missing punch reminders - Daily summary - Work report submit reminder Shifts, leave & absences - Shift and schedule support - Vacation - Unpaid leave - Illness - Holidays - Number of work days per month - Number of worked hours per month Projects, activities & earnings - Projects - Activities - Earned money calculation - Better overview of time spent on work and projects Reports, export & sync - Attendance reports - Work report export in PDF or Excel - Send reports by email - Cloud sync across multiple devices - Secure backup of data GPS, map & watch features - Automatic check-in and check-out using GPS geofencing - Optional GPS location saved with a record - Location display on map - Apple Watch app for quick time tracking Working Timer is suitable for: - employees who want a reliable attendance and overtime tracker - freelancers who need a simple timesheet and earnings overview - companies that want better work hour records and reporting Stay organized, avoid missing punches, and keep your work time under control with Working Timer. ------------------------------------------------------------------------------ Web app: https://workingtimer.com Follow us: https://twitter.com/SpecterInteract https://facebook.com/SpecterInteractive Privacy Policy: https://www.specterint.com/wt_privacy_policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeul

Screenshots

Nozzle Calculator Pro4 screens
Working Timer4 screens

Verdict

The call

The clearest difference is price: Working Timer at Free against Nozzle Calculator Pro's $2.99. Working Timer also leads on update cadence (fortnightly vs every 41 months) and device support (4 vs 2). Nozzle Calculator Pro's advantage is in-app purchases (none vs 4) and ads (none vs shown). On iOS requirement 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

Working Timer is free to download; Nozzle Calculator Pro costs $2.99 up front. Working Timer sells 4 in-app purchases, starting at $2.99 per month. Nozzle Calculator Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Nozzle Calculator Pro ships an update every 41 months, Working Timer fortnightly. The most recent releases landed on October 17, 2026 and October 21, 2026 respectively.

Scorecard5 real differences · 5 level
Nozzle Calculator Pro versus Working Timer: the parameters behind the verdict, then further details
ParameterNozzle Calculator ProWorking Timer
Price$2.99Free — better
Rating—4.9 (13 ratings) — better
Positive reviews—26.7% of reviews
Number of ratings—13 — better
Update frequencyEvery 41 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.115.0 — better
Further details — not scored
Size1 MB97 MB
Age rating4+4+
DeveloperImran PinjaraSpecter Interactive

In-app purchases

None

Nozzle Calculator Pro

No in-app purchases

4 purchases

Working Timer

Subscriptions3
  • Remove ads$2.991 Month
  • Remove ads per 3 months$6.993 Months
  • Remove ads per 6 months$12.996 Months
One-time1
  • Lifetime premium$49.99

Questions

Is Nozzle Calculator Pro free?
Nozzle Calculator Pro costs $2.99, with no in-app purchases.
Is Working Timer free?
Working Timer is free to download, with in-app purchases available.
Do Nozzle Calculator Pro or Working Timer have ads?
Working Timer shows ads; Nozzle Calculator Pro does not.
Which is updated more often, Nozzle Calculator Pro or Working Timer?
Nozzle Calculator Pro ships an update every 41 months, and Working Timer fortnightly. Most recently, Nozzle Calculator Pro was updated on October 17, 2026 and Working Timer on October 21, 2026.

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