EngineCalc vs FuelAdvisor for iPhone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EngineCalc
This utility app provides a collection of essential formulas and calculators for powersports and engine tuning. It allows users to perform complex calculations directly on their iPhone, eliminating the need for a laptop or desktop computer.
- Powersports formulas
- Engine tuning calculators
- Actual Volume Flow
- Air Density
- Compression Ratio
- Cylinder Displacement
- Volumetric Efficiency
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EngineCalc is a collection of useful formulas (calculators) for those involved with powersports or engine tuning, in general. Instead of carrying around a laptop or relying on access to a desktop computer with a spreadsheet, you can get the calculations you need right on the handy iPhone in your pocket. Here is a partial list of the "calculators" provided here in EngineCalc: * Actual Volume Flow * Air Density * BHP Loss * Compression Height * Compression Ratio * Corrected BHP * Cylinder Displacement * Horsepower * Mass Flow * Piston Dome Volume * Piston Speed * Rod Length * Simple Horsepower * Theoretical Volume Flow * Torque * Volumetric Efficiency
FuelAdvisor for iPhone
Easily estimate your fuel expenses before you visit the pump. Input basic details to get a clear understanding of your likely spending on gasoline.
- Fuel cost estimation
- Expense tracking
- Simple data entry
- Cost projection
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FuelAdvisor is a fuel cost calculator. Enter some basic information and know what you’re likely to spend each time you go to the pump.
Screenshots
Verdict
The clearest difference is price: FuelAdvisor for iPhone at Free against EngineCalc's $0.99. FuelAdvisor for iPhone also leads on rating (5.0 vs 2.3) and update cadence (every 5 days vs every 2 months). EngineCalc's advantage is review sentiment (60% vs 40%) and chart position (#184 vs unranked). 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
FuelAdvisor for iPhone is free to download; EngineCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
FuelAdvisor for iPhone holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews complicate that: 60% of EngineCalc's written reviews are positive against 40% of FuelAdvisor for iPhone's, so the app with the better star average is not the one people write more warmly about.
EngineCalc ships an update every 2 months, FuelAdvisor for iPhone every 5 days. The most recent releases landed on August 14, 2026 and September 27, 2026 respectively.
| Parameter | EngineCalc | FuelAdvisor for iPhone |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 2.3 (3 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 60.0% of reviews — better | 40.0% of reviews |
| Number of ratings | 3 | 3 |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #184 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 6.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 8 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | iTrinity, Inc. | Charles Tatum II |
Customer experience
EngineCalc
FuelAdvisor for iPhone
In-app purchases
EngineCalc
No in-app purchases
FuelAdvisor for iPhone
No in-app purchases
Questions
Is EngineCalc free?
Is FuelAdvisor for iPhone free?
Which has better reviews, EngineCalc or FuelAdvisor for iPhone?
Do EngineCalc or FuelAdvisor for iPhone have ads?
Which is updated more often, EngineCalc or FuelAdvisor for iPhone?
Other comparisons
