# RMeter 黃錶 vs ShiftProCalendar

The clearest difference is in-app purchases: RMeter 黃錶 at none against ShiftProCalendar's 2. RMeter 黃錶 also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ShiftProCalendar sells 2 in-app purchases, starting at $0.99 per month. RMeter 黃錶 asks for nothing beyond the download.

RMeter 黃錶 ships an update every 3 months, ShiftProCalendar every 2 months. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RMeter 黃錶 | ShiftProCalendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 346 MB | 20 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [wen hua chuang](https://appshunter.io/developer/1870855011) | [LI JUNYI](https://appshunter.io/developer/1863692375) |

## What reviewers say

### RMeter 黃錶

[App page](https://appshunter.io/ios/app/rmeter/id6758099878)

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

**In-app purchases:** none


### ShiftProCalendar

[App page](https://appshunter.io/ios/app/shiftprocalendar/id6761934926)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Lifetime Access | $29.99 | one-time |


## Frequently asked questions

### Is RMeter 黃錶 free?

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

### Is ShiftProCalendar free?

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

### Do RMeter 黃錶 or ShiftProCalendar have ads?

Neither RMeter 黃錶 nor ShiftProCalendar shows ads.

### Which is updated more often, RMeter 黃錶 or ShiftProCalendar?

RMeter 黃錶 ships an update every 3 months, and ShiftProCalendar every 2 months. Most recently, RMeter 黃錶 was updated on October 10, 2026 and ShiftProCalendar on October 7, 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.*