# Unit Conversion Calculator $ vs Reminder

The clearest difference is in-app purchases: Unit Conversion Calculator $ at none against Reminder's 1. Unit Conversion Calculator $ also leads on iOS requirement (13.0 vs 18.0). Reminder's advantage is ads (none vs shown) and update cadence (every 3 months vs every 9 months). On price and device support there is nothing between them.

Both are free to download. Reminder sells 1 one-off in-app purchase. Unit Conversion Calculator $ asks for nothing beyond the download.

Unit Conversion Calculator $ ships an update every 9 months, Reminder every 3 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Unit Conversion Calculator $ | Reminder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/unit-conversion-calculator/id6742060456/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Ad-supported | — |
| Size | 28 MB | 7 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [JanoGroup LLC](https://appshunter.io/developer/1781461557) | [Velit Tolga MUSTO](https://appshunter.io/developer/1865729768) |

## What reviewers say

### Unit Conversion Calculator $

[App page](https://appshunter.io/ios/app/unit-conversion-calculator/id6742060456)

This app offers a comprehensive suite of tools for converting measurements across 14 categories and performing currency exchanges with live rates. It features historical comparisons, favorites, and sharing capabilities, making it useful for various daily tasks.

**Highlights:** 14 measurement conversion categories, Live currency exchange rates, Historical currency rate comparisons, Save favorite conversions, Offline measurement conversions, Metric and imperial units, Light, dark, and system appearance options

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

**In-app purchases:** none


### Reminder

[App page](https://appshunter.io/ios/app/reminder-tasks-and-to-do-list/id6757705800)

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Ömür Boyu | $4.99 | one-time |


## Frequently asked questions

### Is Unit Conversion Calculator $ free?

Unit Conversion Calculator $ is free to download, with no in-app purchases.

### Is Reminder free?

Reminder is free to download, with in-app purchases available.

### Do Unit Conversion Calculator $ or Reminder have ads?

Unit Conversion Calculator $ shows ads; Reminder does not.

### Which is updated more often, Unit Conversion Calculator $ or Reminder?

Unit Conversion Calculator $ ships an update every 9 months, and Reminder every 3 months. Most recently, Unit Conversion Calculator $ was updated on October 30, 2026 and Reminder on October 31, 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.*