# Holtek MCU Selector vs Medication Reminder Master

The clearest difference is in-app purchases: Holtek MCU Selector at none against Medication Reminder Master's 2. Holtek MCU Selector also leads on iOS requirement (13.0 vs 15.0). Medication Reminder Master's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Medication Reminder Master sells 2 in-app purchases, starting at $2.99 per 7 days. Holtek MCU Selector asks for nothing beyond the download.

Holtek MCU Selector ships an update every 2 months, Medication Reminder Master every 3 weeks. The most recent releases landed on September 23, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Holtek MCU Selector | Medication Reminder Master |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 19 MB | 13 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Holtek Semiconductor(China) Inc](https://appshunter.io/developer/1052056181) | [通县 王](https://appshunter.io/developer/1762035495) |

## What reviewers say

### Holtek MCU Selector

[App page](https://appshunter.io/ios/app/holtek-mcu-selector/id6444018542)

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

**In-app purchases:** none


### Medication Reminder Master

[App page](https://appshunter.io/ios/app/medication-reminder-master/id6621190806)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Membership | $2.99 | per 7 days |
| Yearly Premium | $34.99 | per year |


## Frequently asked questions

### Is Holtek MCU Selector free?

Holtek MCU Selector is free to download, with no in-app purchases.

### Is Medication Reminder Master free?

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

### Do Holtek MCU Selector or Medication Reminder Master have ads?

Neither Holtek MCU Selector nor Medication Reminder Master shows ads.

### Which is updated more often, Holtek MCU Selector or Medication Reminder Master?

Holtek MCU Selector ships an update every 2 months, and Medication Reminder Master every 3 weeks. Most recently, Holtek MCU Selector was updated on September 23, 2026 and Medication Reminder Master on September 11, 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.*