# 365 Days Calendar vs MakeCalc

The clearest difference is price: MakeCalc at Free against 365 Days Calendar's $1.99. MakeCalc also leads on update cadence (every 2 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

MakeCalc 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.

365 Days Calendar ships an update every 2 months, MakeCalc every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 365 Days Calendar | MakeCalc |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (27 ratings)](https://appshunter.io/ios/app/365-days-calendar/id6446790328/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 6 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cyberdeploy Inc.](https://appshunter.io/developer/1679092362) | [29Apps LLC](https://appshunter.io/developer/1817021563) |

## What reviewers say

### 365 Days Calendar

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

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


### MakeCalc

[App page](https://appshunter.io/ios/app/makecalc/id6749636475)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 365 Days Calendar free?

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

### Is MakeCalc free?

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

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

Neither 365 Days Calendar nor MakeCalc shows ads.

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

365 Days Calendar ships an update every 2 months, and MakeCalc every 2 weeks. Most recently, 365 Days Calendar was updated on November 3, 2026 and MakeCalc on October 30, 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.*