Pilot Time vs Interpolator
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.)
Interpolator
Easily find values within tables using interpolation for two or three rows. This utility app simplifies calculations without needing a separate calculator, making it ideal for various table-based environments.
- Two-row interpolation
- Three-row interpolation
- Table value lookup
- No calculator needed
- Cargo surveyor tool
- General table use
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This is a small app which makes it very easy to look up values in tables (math etc) when you have to interpolate both in two and in three rows. No more need for a calculator to interpolate manually. This app was designed primarily for cargo surveyors working with tank calibration tables, but the app does have its application in any environment where tables are used. As of 13th January 2015, this app has become FREE until further notice.
Screenshots
Verdict
The clearest difference is rating: Interpolator at 4.9 against Pilot Time's 4.5. Interpolator also leads on ratings volume (74 vs 19). On price, review sentiment, update cadence and ads 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.
Interpolator holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 19 and 74 respectively. Written reviews complicate that: 73% of Pilot Time's written reviews are positive against 67% of Interpolator'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, Interpolator every 4 months. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.
| Parameter | Pilot Time | Interpolator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (19 ratings) | 4.9 (74 ratings) — better |
| Positive reviews | 73.2% of reviews — better | 66.7% of reviews |
| Number of ratings | 19 | 74 — better |
| Update frequency | Every 6 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 18 MB |
| Age rating | 4+ | +4 |
| Developer | WillowRoot Apps, LLC. | ron mooring |
Customer experience
Pilot Time
Interpolator
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
Interpolator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Pilot Time
No in-app purchases
Interpolator
No in-app purchases
