# Zulu Time vs C172 Performance

The clearest difference is price: C172 Performance at Free against Zulu Time's $0.99. C172 Performance also leads on review sentiment (90% vs 79%) and iOS requirement (13.0 vs 17.6). Zulu Time's advantage is ads (none vs shown) and ratings volume (2.6K vs 52). On rating, update cadence, in-app purchases and device support there is nothing between them.

C172 Performance is free to download; Zulu Time costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.8 for Zulu Time against 4.9 for C172 Performance. That said, the two scores are not equally well evidenced: Zulu Time has 2.6K ratings behind it against 52, so its average is the more settled of the two. Written reviews are what separate them: 79% of Zulu Time's written reviews are positive against 90% of C172 Performance's.

Zulu Time ships an update every 3 months, C172 Performance every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Zulu Time | C172 Performance |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.8 (2.6K ratings)](https://appshunter.io/ios/app/zulu-time/id377289826/reviews) | **[4.9 (52 ratings)](https://appshunter.io/ios/app/c172-performance/id741721884/reviews)** |
| Number of ratings | **2.6K** | 52 |
| Positive reviews | 78.6% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 16 MB | 15 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Derek Spears](https://appshunter.io/developer/377289829) | [POH Performance L.L.C.](https://appshunter.io/developer/641403529) |

## What reviewers say

### Zulu Time

[App page](https://appshunter.io/ios/app/zulu-time/id377289826)

This app displays local and UTC (Zulu) time, along with multiple time zones, on your iPhone, Apple Watch, and iPad. It offers widgets for quick access and features for calculating future or past times with offsets, simplifying timezone conversions for various professions.

**Highlights:** Display local and Zulu (UTC) time, Multiple time zone display, Home and Lock Screen widgets, Apple Watch complications, Future/past time offset calculations, Time zone conversion

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Zulu time on command
- 🔒 Robust security features
- 👍 Easy to read and use
- 👍 Excellent for aviation and radio operators
- 👍 Customizable and syncs correctly

**What reviewers complain about**

- 🐛 Watch complication not updating consistently
- 🐛 Local time not displaying correctly on widget
- 🐛 Complication shows only hours, not full time
- 🐛 Difficulty setting with Daylight Saving Time

**Reported bugs**

- Complication freezes after a few days
- Zulu time loses accuracy over time on Apple Watch
- Widget not updating local time properly

**Requested features**

- Add alarm feature
- Allow landscape mode for bedside clock view
- Provide option for always-on display
- Add time zone map for quick reference
- Show day of year in display


### C172 Performance

[App page](https://appshunter.io/ios/app/c172-performance/id741721884)

This app calculates essential flight performance data for Cessna 172 and 150 aircraft. It covers takeoff, landing, climb, cruise, descent, instrument procedures, and emergencies, with additional tools for holds and glide calculations. Cloud sync ensures your flight plans are accessible across devices.

**Highlights:** Takeoff and landing calculations, Climb, cruise, and descent performance, Instrument procedure planning, Emergency scenario calculations, Interactive hold calculator, Emergency glide distance calculator, Cloud sync for flight plans

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zulu Time free?

Zulu Time costs $0.99, with no in-app purchases.

### Is C172 Performance free?

C172 Performance is free to download, with no in-app purchases.

### Which has better reviews, Zulu Time or C172 Performance?

C172 Performance is rated higher. Zulu Time averages 4.8 out of 5 from 2.6K ratings, while C172 Performance averages 4.9 from 52 ratings.

### Do Zulu Time or C172 Performance have ads?

C172 Performance shows ads; Zulu Time does not.

### Which is updated more often, Zulu Time or C172 Performance?

Zulu Time ships an update every 3 months, and C172 Performance every 2 months. Most recently, Zulu Time was updated on October 26, 2026 and C172 Performance on October 24, 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.*