Comparison

iVSP vs ImportEspana

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

Head to head
About

iVSP

Experience ship navigation with Voith propulsion systems. Explore the mechanics and hydrodynamics of Voith Schneider Propellers (VSP) and their unique thrust capabilities on various vessel types. Learn about the innovative technology behind this propulsion system.

Highlights
  • Steer ships with Voith propulsion
  • Explore Voith Schneider Propeller mechanics
  • Understand VSP hydrodynamics
  • Simulate various vessel types
  • Learn about VSP thrust generation
Features
Read full description

The iVSP app allows users to steer ships equipped with Voith propulsion systems, in particular Voith Schneider Propeller (VSP). These are real ships of various types: Voith Water Tractors (tugs), double-ended ferries, offshore vessels, and yachts. iVSP also provides a deeper insight into the mechanics and hydrodynamics of the Voith Schneider Propeller (VSP) and its unique propeller forces. The VSP enables the fastest generation of thrust in all directions – stepless and precisely. VSPs combine propulsion, steering, and roll stabilization in a single unit, eliminating the need for rudders. Thrust and steering forces can be generated in any direction from zero to maximum. The Voith Schneider Propeller generates thrust by means of profiled blades that protrude from the ship's bottom and rotate around a vertical axis. The blades are mounted in a rotor casing that is flush with the ship's bottom. The rotational movement of the blades around the common vertical axis is superimposed by a local oscillatory movement of the individual propeller blades around their own axis. This oscillatory movement is generated by a kinematic mechanism (kinematics). The Voith Schneider Propeller is based on an idea by Austrian inventor Ernst Schneider, and its effectiveness was first successfully demonstrated in model tests in 1926. The development potential of the VSP is far from exhausted, and Voith engineers are continuously working to further improve its efficiency. In addition, the company is constantly developing new applications for various types of ships for this unique propulsion system. Suggestions for the application and further improvement of the VSP are always welcome. The relevant contact details for Voith can be found in the main menu of iVSP.

About

ImportEspana

Features
Read full description

Thinking of buying a car in Germany, France, or Italy and bringing it to Spain? Don't get caught out by hidden costs at customs. ImportEspana is the only app you need to calculate the exact cost of importing and registering any foreign vehicle in Spain. Why use ImportEspana? • Official BOE Database: We use the Spanish government's official vehicle valuation tables (updated for 2026/2027) to calculate the "Valor Fiscal" accurately. • Smart Tax Calculation: Automatically calculates the Registration Tax (Impuesto de Matriculación) based on CO2 emissions and vehicle age depreciation. • Transfer Tax (ITP): Handles private seller taxes vs. dealer VAT rules. • Avoid Surprises: Includes DGT fees, ITV inspection costs, and number plates. • Professional PDF Reports: Generate and share official-looking cost breakdowns with clients or for your own records. Perfect for: • Private buyers looking for a car abroad. • Professional car importers and dealers. • Expats moving to Spain with their vehicle. Stop guessing and start importing with confidence. Download ImportEspana today! PREMIUM SUBSCRIPTION (ImportEspana Pro): - You can subscribe for unlimited access to premium features, including professional PDF generation and saving historical calculations. - Subscriptions are billed depending on the selected plan (e.g., Monthly or Annually). - Payment will be charged to your iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Your account will be charged for renewal within 24-hours prior to the end of the current period. - You can manage your subscription and turn off auto-renewal by going to your Apple Account Settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://importespana.com/privacy

Screenshots

iVSP4 screens
ImportEspana4 screens

Verdict

The call

The clearest difference is in-app purchases: iVSP at none against ImportEspana's 3. iVSP also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.1). ImportEspana's advantage is update cadence (fortnightly vs every 21 months). On price 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. ImportEspana sells 3 in-app purchases, starting at $3.99 per month. iVSP asks for nothing beyond the download.

UpkeepUpdate frequency

iVSP ships an update every 21 months, ImportEspana fortnightly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
iVSP versus ImportEspana: the parameters behind the verdict, then further details
ParameteriVSPImportEspana
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 21 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size384 MB52 MB
Age rating4+4+
DeveloperVoith Digital Solutions IncGiorgi Khimshiashvili

In-app purchases

None

iVSP

No in-app purchases

3 purchases

ImportEspana

Subscriptions2
  • Monthly Pro$3.991 Month
  • Yearly Pro$19.991 Year
One-time1
  • Lifetime$44.99

Questions

Is iVSP free?
iVSP is free to download, with no in-app purchases.
Is ImportEspana free?
ImportEspana is free to download, with in-app purchases available.
Do iVSP or ImportEspana have ads?
ImportEspana shows ads; iVSP does not.
Which is updated more often, iVSP or ImportEspana?
iVSP ships an update every 21 months, and ImportEspana fortnightly. Most recently, iVSP was updated on October 29, 2026 and ImportEspana on October 25, 2026.

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