Comparison

PilotCalc vs ZipMaster

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

Head to head
About

PilotCalc

This utility app helps pilots log flight details and calculate various time durations. It offers a free version with core features and optional in-app purchases for enhanced customization and additional calculators.

Highlights
  • Flight log for basic flight information
  • Automatic calculation of block, airborne, duty, and tech log times
  • Departure countdown with customizable alerts
  • Time calculator for hours and minutes
  • Decimal time calculator
  • Basic arithmetic calculator
  • Customizable keyboard colors
Features
Read full description

PilotCalc is a utility comprising a mini Flight Log and Time Calculator.  The basic functionality of the Time Calculator and the Flight Log is free with no ads, but there are two one-off in-app purchases available to extend the usefulness of the app and to customise its appearance. The Flight Log is designed to enable pilots to log basic flight information and a few notes for a series of flights. It automatically calculates the associated block, airborne, duty and tech log times. If scheduled times are entered before flight, it also provides a countdown to departure. The Flight Log can be used in UTC or system time. Buying the Flight Log Preferences in-app purchase allows for customisation of the Flight Log. This customisation includes: - Tailoring the departure countdown, including adding and removing alert times, changing associated colours and the option to enable audio and/or background notifications for each countdown alert. - Displaying elapsed times in hours and minutes or in decimals. - Changing the default periods used for calculating the Duty Start and Duty End times. - Changing the tech log calculation to use block times instead of airborne times. The Time Calculator is designed to add up logbook entries with minimal keystrokes, but can be used for any hours and minutes calculations, including those involving elapsed time within a 24 hour period (useful for those duty time sums at the end of a long night). There are no practical limits to the number of hours that can be added, but time calculations resulting in negative time values are not supported. All calculations are held in a rolling tape for reference. The free version of PilotCalc offers three different calculator keyboard colour options and includes the hours and minutes time calculator. Opting to pay for the Calculator Preferences in-app purchase unlocks eight additional keyboard colours and two additional calculators - a decimal time calculator and a basic arithmetic calculator. With the Calculator Preferences enabled, hours and minutes calculations and decimal calculations are automatically converted when switching between the two time calculators. The app was developed to work well on the relatively small screen of an iPhone but scales effectively to the larger iPad screens. This version does not allow synchronisation between devices. Please visit www.coldaridcode.com for more information or follow us @coldaridcode for the latest news. If you find PilotCalc useful we would really appreciate a review on the App Store!

About

ZipMaster

Features
Read full description

ZipMaster – Beautiful ZIP creation on iPhone & iPad ZipMaster gives you a polished, privacy-friendly way to select photos, documents, and folders, compress them into professional ZIP archives, analyze storage, and manage past downloads—all wrapped in a premium SwiftUI experience that feels at home on iOS. Key Features Easy Selection Flow Pick files from Files, Photos, or via drag & drop using a unified staging area. Smart ZIP Creation Batch files into archives, choose naming presets, skip hidden files, and watch a delightful progress animation. Storage Analyzer Visualize combined size, largest items, and duplicates before zipping to trim unnecessary data. Recent ZIPs Library Every archive you finish lands in your Recents section, ready for re-download once unlocked. Customization & Accessibility Dynamic themes, animation controls, haptics, and bold typography deliver a refined, accessible interface. Privacy by Design Everything happens locally on your device. No servers, no analytics. Premium Unlocks To export and re-download ZIPs, choose the plan that fits: Single ZIP Credit Pay-as-you-go access for one ZIP download. Weekly Unlimited Unlimited downloads plus premium features like batch zipping rules, metadata editor, Shortcuts integration, background alerts, and priority processing. Lifetime Unlock One-off purchase delivering unlimited downloads and all Pro tools forever—no recurring charge. A free tier is always available; you can stage files and preview archives without purchasing. Downloading or sharing a ZIP requires either a credit or an active unlimited plan. Compliance & Legal Privacy Policy: https://angelapplications.co.uk/privacy-policy Terms of Use: https://angelapplications.co.uk/terms-of-use Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscriptions auto-renew unless canceled at least 24 hours before the current period ends. Manage or cancel anytime in your Apple ID settings. Credits never expire until used. Charges are billed to your iTunes account at purchase confirmation. Make your ZIP workflow fast, gorgeous, and trustworthy. Download ZipMaster today!

Screenshots

PilotCalc4 screens
ZipMaster4 screens

Verdict

The call

The clearest difference is device support: PilotCalc at 3 against ZipMaster's 1. PilotCalc also leads on iOS requirement (13.0 vs 17.6). On price, ads and in-app purchases 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

Both are free to download. PilotCalc sells 5 one-off in-app purchases and ZipMaster sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
PilotCalc versus ZipMaster: the parameters behind the verdict, then further details
ParameterPilotCalcZipMaster
PriceFreeFree
Rating4.9 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.6
Further details — not scored
Size30 MB2 MB
Age rating4+4+
DeveloperIan LongshawAngel App Publishing Ltd.

In-app purchases

5 purchases

PilotCalc

One-time5
  • Calculator Colour Pack One$0.49
  • Calculator Colour Pack Two$0.49
  • Countdown Preferences$0.99
Show 2 more
  • Calculator Preferences$1.99
  • Flight Log Preferences$1.99
3 purchases

ZipMaster

Subscriptions1
  • Weekly Subscription$4.997 Days
One-time2
  • One Zip Credit$3.99
  • One Time Upgrade$14.99

Questions

Is PilotCalc free?
PilotCalc is free to download, with in-app purchases available.
Is ZipMaster free?
ZipMaster is free to download, with in-app purchases available.
Do PilotCalc or ZipMaster have ads?
Neither PilotCalc nor ZipMaster shows ads.

Other comparisons