Engine Calculator Plus vs Tinker Tracker
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
Read full descriptionHide full description
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.
Tinker Tracker
This app helps automotive enthusiasts track, organize, and manage vehicle restoration and repair projects. It allows for detailed project logging, parts and expense management, and customizable build tracking, all with secure local data storage.
- Detailed project tracking
- Parts and expenses management
- Customizable build organization
- Secure local data storage
- In-app browser for parts search
- Community forum integration
Read full descriptionHide full description
Tinker Tracker is the quintessential tool for automotive enthusiasts passionate about restoring, repairing, and maintaining their vehicles. Whether it's a classic car, a modern muscle vehicle, or your daily driver, Tinker Tracker keeps you organized and documents every step of your automotive journey. --- Key Features Detailed Project Tracking: Maintain a thorough record of your restoration and repair projects from inception to completion. Parts and Expenses Management: Keep track of parts and expenses to manage your budget and inventory effectively. Customizable Build Selections: Organize and oversee multiple projects with distinct build specifications. Secure, Local Data Storage: Rest assured that your data is stored securely on your device and is never collected or shared. --- Why Choose Tinker Tracker? Designed for Car Lovers: Created by and for car enthusiasts, Tinker Tracker resonates with the dedication of every project. Simple and Intuitive: An easy-to-navigate interface with robust features keeps your attention on what's important—your vehicle. Optional In-App Browser: When searching for parts, the in-app browser allows you to look up specific parts for your selected build directly, streamlining your search without impacting your offline data. Stay Connected: Share your builds, progress, and images with other enthusiasts on the official Tinker Tracker website forum at https://www.tinkertracker.com for inspiration and collaboration. --- Whether you're reviving a classic gem, enhancing performance parts, or just keeping a log of your maintenance history, Tinker Tracker is your reliable partner in the garage. With privacy at its core, Tinker Tracker stores all data locally on your device and ensures a secure and distraction-free experience. Organize, save time, and concentrate on your automotive passion. Download Tinker Tracker and master your auto restoration endeavors!
Screenshots
Verdict
The clearest difference is review sentiment: Tinker Tracker at 100% against Engine Calculator Plus's 13%. Tinker Tracker also leads on price (Free vs $2.99) and rating (5.0 vs 4.0). Engine Calculator Plus's advantage is chart position (#183 vs unranked) and iOS requirement (13 vs 16.6). On ratings volume, ads, in-app purchases 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
Tinker Tracker 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.
Tinker Tracker holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 13% of Engine Calculator Plus's written reviews are positive against 100% of Tinker Tracker's.
Engine Calculator Plus ships an update every 48 months, Tinker Tracker every 9 months. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.
| Parameter | Engine Calculator Plus | Tinker Tracker |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 12.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 48 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #183 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13 — better | 16.6 |
| Further details — not scored | ||
| Size | 2 MB | 31 MB |
| Age rating | 4+ | 17+ |
| Developer | Nitrio | 7TH REALM LABS LLC |
Customer experience
Engine Calculator Plus
Tinker Tracker
In-app purchases
Engine Calculator Plus
No in-app purchases
Tinker Tracker
No in-app purchases
Questions
Is Engine Calculator Plus free?
Is Tinker Tracker free?
Which has better reviews, Engine Calculator Plus or Tinker Tracker?
Do Engine Calculator Plus or Tinker Tracker have ads?
Which is updated more often, Engine Calculator Plus or Tinker Tracker?
Other comparisons















