# Pilot Time vs Linear Interpolation Master

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.

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.

## The numbers

| Metric | Pilot Time | Linear Interpolation Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (19 ratings)](https://appshunter.io/ios/app/pilot-time/id360138989/reviews) | **[4.7 (176 ratings)](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994/reviews)** |
| Number of ratings | 19 | **176** |
| Positive reviews | **73.2% of reviews** | 62.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 16 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [WillowRoot Apps, LLC.](https://appshunter.io/developer/996072337) | [VERVE TECHNOLOGIES PTY. LTD.](https://appshunter.io/developer/582523354) |

## What reviewers say

### Pilot Time

[App page](https://appshunter.io/ios/app/pilot-time/id360138989)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🎯 Accurate time zone conversions
- 💰 Free application with no cost
- ⚡ Quick and easy access to Zulu time
- 📱 iOS widget functionality

**What reviewers complain about**

- 🐛 Frequent crashes on app launch
- 📺 Intrusive advertisement pop-ups
- 🔧 Widget loading failures
- 📋 Limited city/location database
- 🎯 Defaults to Los Angeles time zone

**Reported bugs**

- 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

**Requested features**

- 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)


### Linear Interpolation Master

[App page](https://appshunter.io/ios/app/linear-interpolation-master/id1433976994)

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.

**Highlights:** Large number display for field visibility, Quickly swap X and Y coordinates, 4-20mA to 0-100% conversion, 0-100% to 4-20mA conversion

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Generous Tip | $2.99 | one-time |
| Massive Tip | $3.99 | one-time |
| Amazing Tip | $4.99 | one-time |


## Frequently asked questions

### Is Pilot Time free?

Pilot Time is free to download, with no in-app purchases.

### Is Linear Interpolation Master free?

Linear Interpolation Master is free to download, with in-app purchases available.

### Which has better reviews, Pilot Time or Linear Interpolation Master?

Linear Interpolation Master is rated higher. Pilot Time averages 4.5 out of 5 from 19 ratings, while Linear Interpolation Master averages 4.7 from 176 ratings.

### Do Pilot Time or Linear Interpolation Master have ads?

Linear Interpolation Master shows ads; Pilot Time does not.

### Which is updated more often, Pilot Time or Linear Interpolation Master?

Pilot Time ships an update every 6 months, and Linear Interpolation Master every 5 months. Most recently, Pilot Time was updated on September 21, 2026 and Linear Interpolation Master on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*