Density Converter vs SelfBrief
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.
SelfBrief
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SelfBrief is the perfect solution to ensure you have a suite of current and detailed airfield briefs. With a focus on the Threat and Error Management Principle, SelfBrief highlights the challenges posed by the diverse complexities of airports worldwide.
Screenshots
Verdict
The clearest difference is price: SelfBrief at Free against Density Converter's $1.99. SelfBrief also leads on update cadence (every 5 weeks vs every 38 months). On ads, in-app purchases, device support and iOS requirement 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
SelfBrief 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, SelfBrief every 5 weeks. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.
| Parameter | Density Converter | SelfBrief |
|---|---|---|
| Price | $1.99 | Free — better |
| Update frequency | Every 38 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Anna Filobok | SelfBrief Limited |
In-app purchases
Density Converter
No in-app purchases
SelfBrief
No in-app purchases
