Comparison

Pressure Unit Converter vs Planebooker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pressure Unit Converter

Easily convert pressure measurements between various units with customizable rounding options for both decimal and fractional results. Save and email your conversion history for convenient record-keeping.

Highlights
  • Multiple pressure unit support
  • Decimal and fractional result display
  • Customizable rounding for decimals
  • Customizable fraction rounding
  • Conversion history
  • Email results and history
  • Portrait and landscape support
Features
Read full description

A handy app to convert between pressure units. Supported pressure units: • Atmosphere • Millibar • Bar • Pascal • Hectopascal • Kilopascal • Pounds per square inch (PSI) • Pounds per square foot (PSF) • Kilograms per square meter kgf/m² • Inches of mercury (inHg) • Millimeters of mercury (mmHg) • Torr "Flip" button to easily switch between the "from" and "to" units. Supports fractions. Results are shown in the decimal and fractional forms. App's Settings: - Rounding to the specified number of decimal places: for decimal numbers, you can select the number of decimal places you want to display. By default, the app displays 2 decimal places. To round results to the nearest whole number, select 0 decimal places. - For fractions, you can select rounding to the nearest 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256. By default, the app rounds fractions to the nearest 1/32. If you do not need to round fractions, just select "-". Sends results and history via email. Conversion history. Supports both portrait and landscape orientation.

About

Planebooker

Features
Read full description

Create, track, and manage airplane-sharing bookings easily, manage rental packages, and know exactly the current account status for each pilot within your club and each airplane in your fleet.

Screenshots

Pressure Unit Converter4 screens
Planebooker4 screens

Verdict

The call

The clearest difference is price: Planebooker at Free against Pressure Unit Converter's $3.99. Planebooker also leads on update cadence (every 10 days vs every 2 months). Pressure Unit Converter's advantage is iOS requirement (6.0 vs 14.0). 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

CostPrice · In-app purchases · Ads · Monetization

Planebooker is free to download; Pressure Unit Converter costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Pressure Unit Converter ships an update every 2 months, Planebooker every 10 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Pressure Unit Converter versus Planebooker: the parameters behind the verdict, then further details
ParameterPressure Unit ConverterPlanebooker
Price$3.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better14.0
Further details — not scored
Size23 MB61 MB
Age rating4+4+
DeveloperIntemodino Group s.r.o.Aerodev SRL

In-app purchases

None

Pressure Unit Converter

No in-app purchases

None

Planebooker

No in-app purchases

Questions

Is Pressure Unit Converter free?
Pressure Unit Converter costs $3.99, with no in-app purchases.
Is Planebooker free?
Planebooker is free to download, with no in-app purchases.
Do Pressure Unit Converter or Planebooker have ads?
Neither Pressure Unit Converter nor Planebooker shows ads.
Which is updated more often, Pressure Unit Converter or Planebooker?
Pressure Unit Converter ships an update every 2 months, and Planebooker every 10 days. Most recently, Pressure Unit Converter was updated on November 2, 2026 and Planebooker on November 3, 2026.

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