# LockerimRB vs Countdown & Lunar Reminder

The clearest difference is iOS requirement: LockerimRB at 15.6 against Countdown & Lunar Reminder's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LockerimRB ships an update every 6 weeks, Countdown & Lunar Reminder monthly. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | LockerimRB | Countdown & Lunar Reminder |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 68 MB | 138 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Rav-Bariach Industries Ltd.](https://appshunter.io/developer/1547429561) | [志勇 孙](https://appshunter.io/developer/1788839038) |

## What reviewers say

### LockerimRB

[App page](https://appshunter.io/ios/app/lockerimrb/id6448728030)

**Features:** Vision Pro support

**In-app purchases:** none


### Countdown & Lunar Reminder

[App page](https://appshunter.io/ios/app/countdown-and-lunar-reminder/id6769223331)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is LockerimRB free?

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

### Is Countdown & Lunar Reminder free?

Countdown & Lunar Reminder is free to download, with no in-app purchases.

### Do LockerimRB or Countdown & Lunar Reminder have ads?

Neither LockerimRB nor Countdown & Lunar Reminder shows ads.

### Which is updated more often, LockerimRB or Countdown & Lunar Reminder?

LockerimRB ships an update every 6 weeks, and Countdown & Lunar Reminder monthly. Most recently, LockerimRB was updated on October 24, 2026 and Countdown & Lunar Reminder on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*