# Rift Valley Timer vs Calendar Clock

The clearest difference is review sentiment: Rift Valley Timer at 100% against Calendar Clock's 0%. Rift Valley Timer also leads on update cadence (fortnightly vs every 41 months) and iOS requirement (17.0 vs 26.5). Calendar Clock's advantage is price ($0.99 vs $1.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Rift Valley Timer costs $1.99 and Calendar Clock $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rift Valley Timer ships an update fortnightly, Calendar Clock every 41 months. The most recent releases landed on August 30, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Rift Valley Timer | Calendar Clock |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rift-valley-timer/id1448933389/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 41 months |
| Monetization | Paid | Paid |
| Size | 11 MB | 4 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rift Valley Software, Inc.](https://appshunter.io/developer/1448933102) | [Systemiko Inc.](https://appshunter.io/developer/680630947) |

## What reviewers say

### Rift Valley Timer

[App page](https://appshunter.io/ios/app/rift-valley-timer/id1448933389)

This app provides a distraction-free countdown timer experience. Create and manage groups of sequential timers with customizable alerts and visual cues. Choose from multiple display styles for optimal visibility.

**Highlights:** Sequential timer groups, Customizable sounds and vibration, Flexible timer editing, Multiple display styles, Gesture and toolbar controls, Visual alerts with color cues

**Features:** Vision Pro support

**In-app purchases:** none


### Calendar Clock

[App page](https://appshunter.io/ios/app/calendar-clock/id1451445740)

This app displays the current year, month, week, and time on a single screen with a clean design. It offers customizable theme colors and functions as a desk clock. The app disables device sleep mode while active.

**Highlights:** All-in-one screen display, Year, month, week, day, hour, minute, second, Switchable theme colors (dark, light, green, blue), Disables device sleep mode, Acts as a desk clock

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rift Valley Timer free?

Rift Valley Timer costs $1.99, with no in-app purchases.

### Is Calendar Clock free?

Calendar Clock costs $0.99, with no in-app purchases.

### Do Rift Valley Timer or Calendar Clock have ads?

Neither Rift Valley Timer nor Calendar Clock shows ads.

### Which is updated more often, Rift Valley Timer or Calendar Clock?

Rift Valley Timer ships an update fortnightly, and Calendar Clock every 41 months. Most recently, Rift Valley Timer was updated on August 30, 2026 and Calendar Clock on September 10, 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.*