Pilot Time vs Linear Interpolation Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pilot Time
Instantly view local, military, and UTC time with a tap. Developed by pilots, this app eliminates mental time conversions by displaying current and past/future times across various time zones. Easily select continents and cities for quick comparisons.
- View local, military, and UTC time
- Compare current location time to UTC
- Display frequently used time zones
- Convert past, current, and future times
- Easy continent and city time zone selection
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Stop converting time in your head! See local, military, and UTC time (GMT and Zulu time zones) with a tap. Developed by pilots who can never remember the current UTC (GMT/Zulu) time conversion, Pilot Time instantly gives you the current time and date for your zone, plus UTC time. Pilot Time can: - Compare the time and date at your current location (in 12-hour format and 24-hour format) to UTC time. - Show the 3 time zones you looked at most recently, plus UTC time. - Quickly convert any past, current, or future time to or from any time zone (including GMT). And selecting time zones is easy: first find the continent, then the city you want. No more mental calculations. (The time is provided by your phone's operating system, not a central server. Time zones are taken from the IANA Time Zone Database.)
Linear Interpolation Master
This tool simplifies linear interpolation calculations for industrial commissioning engineers. It features large, easily readable numbers for field use and allows for quick swapping of coordinate systems, such as converting between 4-20mA and 0-100% scales.
- Large number display for field visibility
- Quickly swap X and Y coordinates
- 4-20mA to 0-100% conversion
- 0-100% to 4-20mA conversion
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A linear interpolation calculator designed for industrial commissioning engineers. It has the following features: - Displays large numbers for when you are out in the field commissioning. - Allows quickly swapping x and y coordinates; for example from 4-20mA -> 0-100% to 0-100% -> 4-20mA.
Screenshots
Verdict
The clearest difference is in-app purchases: Pilot Time at none against Linear Interpolation Master's 3. Pilot Time also leads on ads (none vs shown) and review sentiment (73% vs 63%). Linear Interpolation Master's advantage is rating (4.7 vs 4.5) and ratings volume (176 vs 19). On price, update cadence 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
Both are free to download. Linear Interpolation Master sells 3 one-off in-app purchases. Pilot Time asks for nothing beyond the download.
Linear Interpolation Master holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Linear Interpolation Master has 176 ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 73% of Pilot Time's written reviews are positive against 63% of Linear Interpolation Master's, so the app with the better star average is not the one people write more warmly about.
Pilot Time ships an update every 6 months, Linear Interpolation Master every 5 months. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.
| Parameter | Pilot Time | Linear Interpolation Master |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (19 ratings) | 4.7 (176 ratings) — better |
| Positive reviews | 73.2% of reviews — better | 62.5% of reviews |
| Number of ratings | 19 | 176 — better |
| Update frequency | Every 6 months | Every 5 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | WillowRoot Apps, LLC. | VERVE TECHNOLOGIES PTY. LTD. |
Customer experience
Pilot Time
Linear Interpolation Master
Bugs and requests
Pilot Time
Reported bugs
9 issues- App crashes upon opening after updates
- Widget displays 'UNABLE TO LOAD' error
- App crashes when changing time zones
- Incorrect time zone offsets for some locations (e.g., Sydney)
- Time doesn't update when app is reopened
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- Incorrect time zone naming conventions
- Incompatibility with iOS 18 widgets
- 12-hour clock incorrectly identifies noon as AM
- App freezes on startup with certain iOS versions
Requested features
11 requests- Favorites or saved locations tab
- Flight time and air time calculator
- Julian date display for each time zone
- GPS location detection for automatic time zone
- Multiple simultaneous time zone display (3-4 zones)
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- 24-hour format option only
- Search cities by typing functionality
- State listings for US locations
- Flight forecast hour conversion chart
- Decimal format for logbook entries
- Ability to set custom background images
Linear Interpolation Master
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Pilot Time
No in-app purchases
Linear Interpolation Master
- Generous Tip$2.99
- Massive Tip$3.99
- Amazing Tip$4.99
Questions
Is Pilot Time free?
Is Linear Interpolation Master free?
Which has better reviews, Pilot Time or Linear Interpolation Master?
Do Pilot Time or Linear Interpolation Master have ads?
Which is updated more often, Pilot Time or Linear Interpolation Master?
Other comparisons
