Petal Layout Pro vs Shiftat Q8
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Petal Layout Pro
This app assists in the fabrication of spherical and hemispherical heads by calculating precise petal layouts. It supports various part divisions for accurate flat pattern development, ideal for pressure vessel and storage tank construction.
- Sphere petal layout calculation
- Hemispherical head petal layout calculation
- Multiple part divisions (12, 24, 48)
- Unit setting for mm/inches
- Flat pattern development
- Supports pressure vessel fabrication
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Petal Layout is a professional fabrication calculator for developing petal-type layouts for spheres and hemispherical heads. It is designed for pressure vessel fabrication, process equipment manufacturing, spherical tank fabrication, and industrial sheet metal work. The app generates fabrication-ready layout dimensions that can be used for marking plates or sheet metal before cutting, forming, and assembling spherical or hemispherical components. Whether you are a fabrication engineer, fitter, workshop technician, production engineer, or pressure vessel professional, Petal Layout helps simplify complex petal development calculations and improves accuracy during fabrication. Supported Petal Layouts • Hemispherical Head / Hemi Head • Hemispherical Dish End • Sphere / Spherical Tank Hemispherical Head Petal Layout Generate petal development dimensions for hemispherical pressure vessel heads and dish ends. Enter the required head diameter and straight face length, select the desired number of development divisions, and calculate the layout dimensions required for plate marking. Sphere Petal Layout Generate petal-type development dimensions for spherical tanks and spherical shells. Enter the sphere diameter and select the required number of divisions to generate the layout dimensions for fabrication. Development Options Choose from predefined development divisions: • 12 Parts • 24 Parts • 36 Parts • 48 Parts You can also enter a custom number of development divisions according to your fabrication requirements. Features • Sphere petal layout development • Hemispherical head petal development • Dish end petal layout • Spherical tank layout calculations • Multiple development division options • Custom development line/part count • Fabrication-ready marking dimensions • Clear and easy-to-understand results • Simple professional interface • Metric and Imperial unit support • No internet connection required Fabrication Applications Petal Layout is useful for: • Pressure Vessel Fabrication • Spherical Tank Fabrication • Process Equipment Fabrication • Storage Tank Manufacturing • Dish End Fabrication • Hemispherical Head Fabrication • Sheet Metal Fabrication • Industrial Fabrication • Plate Layout and Marking Designed For • Fabrication Engineers • Fabrication Fitters • Production Engineers • Mechanical Engineers • Workshop Technicians • Pressure Vessel Fabricators • Tank Fabricators • Process Equipment Manufacturers • Fabrication Supervisors • Engineering Students For improved fabrication accuracy, the app can be used with appropriate mean dimensions when developing and marking petal layouts. Petal Layout provides a convenient solution for generating sphere and hemispherical head petal development dimensions, helping reduce manual calculations, save fabrication time, and improve accuracy during plate layout and marking.
Shiftat Q8
Easily manage your work schedule with a simple calendar view. Track leave, log clock-in/out times, and add personal notes. Customize your workplace and shift colors for a personalized experience.
- Zero setup required
- Calendar view of shifts
- Countdown timer to next shift
- Leave tracking
- Time log for clock-in/out
- Personal notes
- Customizable workplaces and colors
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Your shifts, always available. Tired of trying to remember your next shift? Shiftat makes it simple. Just pick your workplace and group, and you're done — your entire shift schedule is ready, no account or complicated setup required. Why Shiftat? Zero Setup — Select your workplace, choose your group, and start using. No account needed. See Your Shifts at a Glance — A clean calendar view shows your shifts color-coded by type (day, night, afternoon, off). Countdown Timer — Know exactly how long until your next shift starts. Track Your Leave — Mark vacation days, sick leave, and more. See your complete leave summary and shift statistics. Time Log — Record your actual clock-in and clock-out times for each shift. Personal Notes — Add notes to any day to remember important details. Custom Workplace — Can't find your workplace? Create your own with your specific shift pattern. Customizable — Personalize shift colors and settings to match your preferences. Made for shift workers like you — whether you work in healthcare, oil & gas, government, or any rotating schedule. Shiftat adapts to your pattern. 100% Free — No ads, no subscriptions, no hidden costs. Download Shiftat and take control of your schedule today.
Screenshots
Verdict
The clearest difference is review sentiment: Shiftat Q8 at 100% against Petal Layout Pro's 0%. Shiftat Q8 also leads on price (Free vs $3.99) and update cadence (fortnightly vs every 41 months). On ads, in-app purchases, device support and 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
Shiftat Q8 is free to download; Petal Layout Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Petal Layout Pro ships an update every 41 months, Shiftat Q8 fortnightly. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.
| Parameter | Petal Layout Pro | Shiftat Q8 |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | — | 4.8 (37 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 37 — better |
| Update frequency | Every 41 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | Imran Pinjara | Refaie Alotaibi |
Customer experience
Petal Layout Pro
Shiftat Q8
In-app purchases
Petal Layout Pro
No in-app purchases
Shiftat Q8
No in-app purchases









