# Zulu Time vs Plus Calculator

The clearest difference is update cadence: Zulu Time at every 3 months against Plus Calculator's every 11 months. Plus Calculator's advantage is iOS requirement (11.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Zulu Time costs $0.99 and Plus Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Zulu Time ships an update every 3 months, Plus Calculator every 11 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Zulu Time | Plus Calculator |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.8 (2.6K ratings)](https://appshunter.io/ios/app/zulu-time/id377289826/reviews)** | — |
| Number of ratings | **2.6K** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | Free | — |
| Size | 16 MB | 10 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Derek Spears](https://appshunter.io/developer/377289829) | [andrzej kar](https://appshunter.io/developer/1197919669) |

## 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


### Plus Calculator

[App page](https://appshunter.io/ios/app/plus-calculator/id1439014026)

**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 Plus Calculator free?

Plus Calculator costs $0.99, with no in-app purchases.

### Do Zulu Time or Plus Calculator have ads?

Neither Zulu Time nor Plus Calculator shows ads.

### Which is updated more often, Zulu Time or Plus Calculator?

Zulu Time ships an update every 3 months, and Plus Calculator every 11 months. Most recently, Zulu Time was updated on October 29, 2026 and Plus Calculator on October 25, 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.*