Density Converter vs Refueller
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Density Converter
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Density Converter is the fast density converter to convert for Pound/cubic foot (lb/cu ft), Pound/cubic inch (lb/cu in), Pound/gallon (lb/US gal), Kilogram/cubic meter (kg/cu m), Gram/cubic centimeter (g/cu cm), Gram/cubic millimeter (g/cu mm). You can use it if you builder, scientific or another cool man. Convert densities quickly and as you want.
Refueller
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This app is designed for aircraft refuelling calculations and to calculate oil consumption rate of aircraft engines over time. It can be used by professionals in aviation industry. Another feature of this app can be used to add/subtract hours and minutes which, otherwise, would be difficult to calculate using an ordinary calculator.
Screenshots
Verdict
The clearest difference is price: Refueller at Free against Density Converter's $1.99. Refueller also leads on update cadence (every 2 weeks vs every 38 months) and iOS requirement (10.0 vs 13.4). On 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
Refueller is free to download; Density Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Density Converter ships an update every 38 months, Refueller every 2 weeks. The most recent releases landed on November 7, 2026 and November 11, 2026 respectively.
| Parameter | Density Converter | Refueller |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 38 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 | 10.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | Anna Filobok | Appshay Ltd |
In-app purchases
Density Converter
No in-app purchases
Refueller
No in-app purchases
