Comparison

Rift Valley Timer vs Calendar Clock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Rift Valley Timer

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
Read full description

RiVal.T is a powerful, distraction-free countdown timer app. Create and manage groups of sequential timers, each with customizable sounds, vibration, and visual alerts. The app features: Sequential Timer Groups: Organize timers into groups that run one after another, with optional transition beeps and customizable alarms for each group. Drag and drop timers between these groups. Flexible Timer Editing: Set start, warning, and final thresholds for each timer, with intuitive picker wheels for hours, minutes, and seconds. Instantly see which phase you’re in with green, yellow, and red color cues. Three Distinct Timer Displays: Choose between a retro numeric LED, a circular progress donut, or a traffic light-style display, all designed for maximum visibility and minimal distraction. Gesture and Toolbar Controls: Start, pause, rewind, or fast-forward timers with simple gestures or an optional on-screen toolbar, making the app perfect for both quick access and hands-free operation. RiVal.T brings clarity and precision to your timing needs, whether you’re on stage, in the gym, or managing complex routines.

About

Calendar Clock

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
Read full description

Time and date, beautifully together. Calendar Clock is a simple, elegant time-and-calendar app designed for iPhone and iPad. See the current time and the entire month at a glance, with a clean interface that stays out of your way. Features * Large digital clock — View the current system time clearly and instantly. * 24-hour or 12-hour format — Swipe across the clock to switch between 24-hour and AM/PM formats. * Monthly calendar — See the full month with the current year and month displayed above it. * Swipe through months — Swipe left or right on the calendar to move between months. * Today at a glance — Today's date is highlighted with a red circle. * Weekend highlighting — Saturdays and Sundays are displayed in red. * Multiple themes — Swipe up or down to change the screen theme. * Remembers your preferences — Your selected clock format and theme are preserved. * iPhone & iPad — Designed for both iPhone and iPad. Simple by design No complicated menus. No unnecessary controls. Just the time and the calendar, exactly when you need them. Calendar Clock — See time. See your day. Note that this application disables your device's sleep mode while running, so make sure you have enough battery life. *Important notice: Use the information recoded or functionality provided in / or generated with this application only as a rough indication, rough estimates or as a rough guide. Even though we do our best to provide you with confirmed information and tried-and-tested features, the accuracy and successful operation and performance of the application are NOT GUARANTEED by us. Users are strongly advised to confirm the information of their interest with other sources and not to ultimately rely on functionality and performance of this application. This application is provided “as is” and with all faults. You bear the risk of using it. We shall not be responsible or liable for any loss or damage of any kind incurred as a result of the use of functions or the content of this application. By using this application you are agreeing to these terms. If you do not agree to these terms do not use this application.

Screenshots

Rift Valley Timer4 screens
Calendar Clock4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Rift Valley Timer versus Calendar Clock: the parameters behind the verdict, then further details
ParameterRift Valley TimerCalendar Clock
Price$1.99$0.99 — better
Rating5.0 (3 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings3 — better
Update frequencyFortnightly — betterEvery 41 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better26.5
Further details — not scored
Size11 MB4 MB
Age rating4+4+
DeveloperRift Valley Software, Inc.Systemiko Inc.

Customer experience

Rift Valley Timer

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Calendar Clock

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Rift Valley Timer

No in-app purchases

None

Calendar Clock

No in-app purchases

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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