البلبيسي لتجارة المعادن vs Navigation Zero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
البلبيسي لتجارة المعادن
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Section properties include a variety of parameters and characteristics that can be accurately measured and analyzed. Among these properties are: sectional area, centroid, section modulus, shear stress, moment of inertia, cross-sectional dimensions, arc lengths, beam stiffness, and much more.
Navigation Zero
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Navigation Zero by ILIOFOS Industrial & Marine is the professional design tool for electric and hybrid boat propulsion — from the first estimate to the quotation you hand your client. Enter the boat's details and the app finds the motor, the battery bank and the peripherals, works out range and cost, and produces a complete PDF quotation. PROPULSION DESIGN • Match an electric motor to the existing combustion engine by torque equivalence • Size from displacement and speed — or the other way round, from requirements • Hull material on every screen: composite, aluminium, steel, plywood, solid wood, carbon • Hybrid conversion: keep the combustion engine and add a motor with a battery — Transfluid mechanical subsystem, belt-drive solution, SAE check, gearbox reduction PROPELLER AND RESISTANCE • Propeller selection and design from open-water series, with nozzles and cavitation check • Performance curve against rpm, and bollard pull • Hull resistance with methods validated per category, plus appendages and air drag ENERGY, RANGE, SAIL • Route on a nautical chart with charging stops and a battery balance • Solar, a range-extending generator and hotel loads • Declare the rig and the sail counts in the trip energy; regeneration under sail returns energy to the battery DEAS — BOAT ENERGY EFFICIENCY INDEX An A–G energy rating from the CO₂ index, for electric and combustion boats alike, with a PDF certificate and QR code. Free for everyone. DEAS is a private, non-official standard by ILIOFOS. ONE POWER CHAIN Resistance, shaft power, propeller and energy come out of one shared chain: the same boat gives the same answer in every module, whichever you enter from. TRADITIONAL WOODEN HULLS Fifteen types, lines from 51 measured drawings and real hulls; indicative ones are marked. Give length and timber; you get dimensions, member-by-member weight and a timber supply list with two figures: what goes into the hull and what to order. Midship section on screen and in the report, open or decked, which rule applies, and the source of every dimension in the annex. DOCUMENTATION FOR TECHNICAL REVIEW The quotation can carry a technical annex with the methods used and their stated limits — for a classification society, a naval architect or a surveyor. ELECTRICAL STUDY • Load balance underway and at anchor • Single-line diagram on A3 — or across A4 sheets, at full size, with continuation references • Circuit schedule with cable sections, voltage drop and protection — the three documents a classification society asks for Standards referenced by the modules: ISO 12215-5/-9 · ISO 12217-1/-2 · ISO 8665/8666 · ISO 13297 · ISO 16315 · ISO 23625 · IEC 60092-507 · BV NR500/NR546 · ISO/TS 25128 (DEAS). FREE AND MODULES • Free: the WHOLE calculation — motor, battery, range, savings, DEAS grade • Ten study modules: Resistance & Propeller · Geometry & Stability · Structure & Weight · Reverse sizing · Sailing · Hybrid Conversion · Traditional hulls — Materials & construction · Workboats · Energy & Range Calculation · Electrical study • Each module comes as a one-off purchase or an annual rental — the same rights. The rental is an annual subscription that renews automatically and is cancelled in your store account settings; when it ends, the module locks. • With at least one module, quotation documents and method updates are included. Available in 16 languages. Results are estimates and do not replace a study by a qualified engineer. ILIOFOS Industrial & Marine — info@iliofos.gr Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: البلبيسي لتجارة المعادن at none against Navigation Zero's 10. البلبيسي لتجارة المعادن also leads on iOS requirement (11.0 vs 15.0). Navigation Zero's advantage is update cadence (every 4 days vs every 3 weeks) and device support (4 vs 2). On price and ads 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
Both are free to download. Navigation Zero sells 1 one-off in-app purchase. البلبيسي لتجارة المعادن asks for nothing beyond the download.
البلبيسي لتجارة المعادن ships an update every 3 weeks, Navigation Zero every 4 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.
| Parameter | البلبيسي لتجارة المعادن | Navigation Zero |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 35 MB | 170 MB |
| Age rating | 17+ | 4+ |
| Developer | Egyvision Group For Integrated Services Sae | ILIOFOS INDUSTRIAL & MARINE SOLE SHAREHOLDER CO. P.C. |
In-app purchases
البلبيسي لتجارة المعادن
No in-app purchases
Navigation Zero
- 10-day Trial10 variantsFree
Questions
Is البلبيسي لتجارة المعادن free?
Is Navigation Zero free?
Do البلبيسي لتجارة المعادن or Navigation Zero have ads?
Which is updated more often, البلبيسي لتجارة المعادن or Navigation Zero?
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