Pilot Time vs Interpolation 1.4
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.)
Interpolation 1.4
This utility calculates linear or quadratic interpolations. It provides a straightforward tool for mathematical estimations based on given data points.
- Linear interpolation calculation
- Quadratic interpolation calculation
- Mathematical estimation tool
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** INTERPOLATION ** Interpolation is used to calculate a linear or a quadratic interpolation.
Screenshots
Verdict
The clearest difference is rating: Pilot Time at 4.5 against Interpolation 1.4's 3.5. Pilot Time also leads on review sentiment (73% vs 33%) and ratings volume (19 vs 6). Interpolation 1.4's advantage is update cadence (every 3 weeks vs every 6 months) and iOS requirement (9.0 vs 13.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
Pilot Time holds the better App Store score, 4.5 against 3.5. Both are backed by a comparable volume of ratings — 19 and 6 respectively. Written reviews point the same way: 73% of Pilot Time's written reviews are positive against 33% of Interpolation 1.4's.
Pilot Time ships an update every 6 months, Interpolation 1.4 every 3 weeks. The most recent releases landed on October 4, 2026 and September 17, 2026 respectively.
| Parameter | Pilot Time | Interpolation 1.4 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (19 ratings) — better | 3.5 (6 ratings) |
| Positive reviews | 73.2% of reviews — better | 33.3% of reviews |
| Number of ratings | 19 — better | 6 |
| Update frequency | Every 6 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | WillowRoot Apps, LLC. | ZOFTERM |
Customer experience
Pilot Time
Interpolation 1.4
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
Interpolation 1.4
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Pilot Time
No in-app purchases
Interpolation 1.4
No in-app purchases
Questions
Is Pilot Time free?
Is Interpolation 1.4 free?
Which has better reviews, Pilot Time or Interpolation 1.4?
Do Pilot Time or Interpolation 1.4 have ads?
Which is updated more often, Pilot Time or Interpolation 1.4?
Other comparisons
