# fCalendar vs DustByte

The clearest difference is price: fCalendar at $1.99 against DustByte's $9.99. fCalendar also leads on in-app purchases (none vs 2) and iOS requirement (13.0 vs 17.0). DustByte's advantage is update cadence (every 6 weeks vs every 9 months). On ads and device support there is nothing between them.

fCalendar costs $1.99 and DustByte $9.99 up front. DustByte sells 2 in-app purchases, starting at $1.49 per month. fCalendar asks for nothing beyond the download.

fCalendar ships an update every 9 months, DustByte every 6 weeks. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | fCalendar | DustByte |
| --- | --- | --- |
| Price | **$1.99** | $9.99 |
| Rating | **[3.9 (28 ratings)](https://appshunter.io/ios/app/fcalendar/id348590162/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 59.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 11 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Farzad Rashvand](https://appshunter.io/developer/348590165) | [Sagar Purohit](https://appshunter.io/developer/1836714118) |

## What reviewers say

### fCalendar

[App page](https://appshunter.io/ios/app/fcalendar/id348590162)

This app functions as a desktop calendar, allowing users to jot down notes and reminders. It facilitates conversions between the Persian, Gregorian, and Hijri calendars, and helps users find specific weekdays for any given date.

**Highlights:** Note-taking and reminders, Persian to Gregorian conversion, Gregorian to Persian conversion, Hijri calendar conversion, Weekday finder for any date, Add, edit, and delete notes, Beautiful interface

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

**In-app purchases:** none


### DustByte

[App page](https://appshunter.io/ios/app/dustbyte-duplicate-cleaner/id6753668481)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access (1 Month) | $1.49 | per month |
| Unlimited Access (1 Year) | $14.99 | per year |


## Frequently asked questions

### Is fCalendar free?

fCalendar costs $1.99, with no in-app purchases.

### Is DustByte free?

DustByte costs $9.99, and also offers in-app purchases.

### Do fCalendar or DustByte have ads?

Neither fCalendar nor DustByte shows ads.

### Which is updated more often, fCalendar or DustByte?

fCalendar ships an update every 9 months, and DustByte every 6 weeks. Most recently, fCalendar was updated on October 17, 2026 and DustByte on October 4, 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.*