# 365 Days Calendar vs fivelevel

The clearest difference is price: fivelevel at Free against 365 Days Calendar's $1.99. fivelevel also leads on rating (5.0 vs 4.7) and update cadence (every 4 weeks vs every 2 months). 365 Days Calendar's advantage is chart position (#190 vs unranked) and ratings volume (26 vs 6). On ads and in-app purchases there is nothing between them.

fivelevel is free to download; 365 Days Calendar costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

fivelevel holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 26 and 6 respectively.

365 Days Calendar ships an update every 2 months, fivelevel every 4 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | 365 Days Calendar | fivelevel |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.7 (26 ratings)](https://appshunter.io/ios/app/365-days-calendar/id6446790328/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/fivelevel/id6758299144/reviews)** |
| Number of ratings | **26** | 6 |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#190** | — |
| Size | 6 MB | 25 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Cyberdeploy Inc.](https://appshunter.io/developer/1679092362) | [Adam Moody](https://appshunter.io/developer/1815120551) |

## What reviewers say

### 365 Days Calendar

[App page](https://appshunter.io/ios/app/365-days-calendar/id6446790328)

**Currently charting:** #190 Top Paid · Utilities (US App Store)

This utility app converts between Julian and Gregorian dates and tracks Julian Day Numbers. It's designed for users in fields like astronomy, military operations, and historical research who need precise date management for daily operations.

**Highlights:** Julian to Gregorian date conversion, Gregorian to Julian date conversion, Julian Day Number tracking, Historical date reference management, Scientific date reference management, User-friendly interface

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

**In-app purchases:** none


### fivelevel

[App page](https://appshunter.io/ios/app/fivelevel/id6758299144)

This app provides essential tools for aircraft maintainers, including time conversions, date calculations, and reference data. It offers a streamlined experience with no subscriptions or unnecessary features, designed for efficiency on the flightline.

**Highlights:** Zulu & local time display, Julian date calendar, Preflight due calculator, Conversion tools, Searchable ICAO codes, Apple Watch app, Home screen widget

**In-app purchases:** none


## Frequently asked questions

### Is 365 Days Calendar free?

365 Days Calendar costs $1.99, with no in-app purchases.

### Is fivelevel free?

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

### Which has better reviews, 365 Days Calendar or fivelevel?

fivelevel is rated higher. 365 Days Calendar averages 4.7 out of 5 from 26 ratings, while fivelevel averages 5.0 from 6 ratings.

### Do 365 Days Calendar or fivelevel have ads?

Neither 365 Days Calendar nor fivelevel shows ads.

### Which is updated more often, 365 Days Calendar or fivelevel?

365 Days Calendar ships an update every 2 months, and fivelevel every 4 weeks. Most recently, 365 Days Calendar was updated on October 25, 2026 and fivelevel 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.*