Engine Calculator Plus vs STIHL connected
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engine Calculator Plus
Calculate engine specifications for various car and plane engines, including displacement, compression ratio, and horsepower. Supports metric and imperial systems with a user-friendly interface and 3D engine visualization.
- Engine displacement calculation
- Compression ratio calculation
- Horsepower estimation
- Metric and Imperial support
- 3D engine display
- Copyable results
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Engine Calculator Plus is designed to help you figure out engine specs for all car or plane engine types from inline 4 to V12 Engine. This calculator provides calculations for engine displacement based on either the metric or US standard system. Features: - User friendly UI - Engine type selection from single cylinder to complex W16 or even custom cylinder count. - Display 3D engine from selection - Metric or Imperial input - Output Engine Displacement on cc, liter and cubic inch - Output Compression ratio of engine - Calculate estimate horse power in HP and Kilowatts - Include formula to calculate the engine displacement in help page - Result are copy-able to other app The engine's static compression ratio is easily calculated if you know six measurements or volumes: Bore - The diameter of the cylinder bore Stroke - The distance the piston travels in the cylinder Deck Height - The distance between the top of the cylinder bore and the top of the piston, when the piston is at TDC (Top Dead Center, or at its highest position) Piston top volume - If the piston is dished, domed, or dimpled, that has an affect on compression ratio. Combustion chamber volume - How much open space is in the head above the cylinder Compression ratios: Higher compression ratios cylinder produces better power and fuel economy. It is not just because the charge is squeezed harder and the resulting combustion pressure goes up, but also because the higher expansion ratio allows more energy to be extracted from the original high-pressure. High compression ratio engines burn both much more cleanly and much more efficiently than lower-compression engines. However a lower compression motor will let you run cheap fuel, but your motor won't be as efficient, less efficient and less power. *Thanks for your support, stay tune for more update to come.
STIHL connected
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YOUR FLEET. ALWAYS IN CONTROL. Built for professionals, STIHL connected empowers fleet managers, supervisors, and workshop teams with instant device overview, fast equipment tracking, smart maintenance, and full multi-brand support — so every professional can focus on what really matters: getting the job done. FLEET OVERVIEW - ANYTIME See your entire fleet in one clear overview. Track status, health, and availability so your crew always knows what’s available for the next job. FIND ANY EQUIPMENT IN SECONDS Locate equipment instantly using “last seen” data and map-based tracking. Reduce search time and keep every shift running smoothly. PREVENT DOWNTIME Get timely maintenance reminders based on runtime data or individual preferences. Stay ahead of service needs and avoid costly interruptions. VIEW EQUIPMENT DATA Access usage hours, condition, and performance metrics for equipment and batteries. Make data-driven decisions and optimize utilization across your fleet. ALL MANUFACTURERS IN ONE SYSTEM Manage STIHL and non-STIHL equipment together in one unified digital experience. Easily add third-party tools and maintain consistent workflows across your entire fleet. REPLACE PAPERWORK Move from manual documentation to seamless, real‑time workflows. Access all relevant fleet data instantly — anytime, anywhere. MORE POWER IN THE WEB-BASED PORTAL To unlock the full potential of the solution and access advanced features, we recommend using the STIHL connected Portal. It serves as the central control layer for advanced analytics, role management, and administrative fleet operations. POWERED BY STIHL HARDWARE • Smart Connectors capture usage and location data via Bluetooth — across brands. • STIHL connected Box automatically collects and uploads equipment data to the cloud. • Smart batteries provide charging status, state of health, usage, and location data via Bluetooth REQUIREMENTS A STIHL connected account, Smart Connectors as retrofit or within connected batteries, and optionally the STIHL connected Box for automated data transfer. WHY PROFESSIONALS CHOOSE STIHL CONNECTED • Fast equipment location • Cloud-based fleet overview • Smart maintenance planning • Accurate runtime data • Multi-brand compatibility
Screenshots
Verdict
The clearest difference is price: STIHL connected at Free against Engine Calculator Plus's $2.99. STIHL connected also leads on update cadence (monthly vs every 48 months). Engine Calculator Plus's advantage is device support (3 vs 1) and iOS requirement (13 vs 16.6). On ads and in-app purchases 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
STIHL connected is free to download; Engine Calculator Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Engine Calculator Plus ships an update every 48 months, STIHL connected monthly. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.
| Parameter | Engine Calculator Plus | STIHL connected |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 12.5% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 48 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13 — better | 16.6 |
| Further details — not scored | ||
| Size | 2 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | STIHL Inc. |
In-app purchases
Engine Calculator Plus
No in-app purchases
STIHL connected
No in-app purchases
Questions
Is Engine Calculator Plus free?
Is STIHL connected free?
Do Engine Calculator Plus or STIHL connected have ads?
Which is updated more often, Engine Calculator Plus or STIHL connected?
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