Comparison

iHour vs Random Reminder

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

Head to head
About

iHour

Plan and track your time spent on developing habits and mastering skills. Set daily reminders, use a countdown timer, and plan up to ten years ahead. Unlock achievements to stay motivated on your journey to mastery.

Highlights
  • Daily activity tracking
  • Long-term planning (up to 10 years)
  • Daily reminders and countdown timer
  • Progress statistics and visualization
  • Over 80 unlockable achievements
  • Cloud synchronization
Features
Read full description

"iHour" helps you plan & track your time spending on habits. You can record things like Play Guitar, Read Book, Coding, Running etc. The app supports daily reminder, countdown timer, up to 10 years long-term planning. Special designed Achievements help you achieve your goal. 10000 Hours to Master a Skill. =Special Feature= · Daily Tracker: Record your daily activities by hours & minutes · Cloud Sync · Task Planner & Reminder · Time Statistics: Visualize your efforts · Achievements: 80+ Achievements are waiting for you · Share with your friends —————— About the In-App Subscription: We provide "iHour Pro · Monthly Membership" for $0.49 / month. Your subscription will be billed through your Apple ID account after purchase. Subscription automatically renews unless you cancel it at least 24 hours before the end of your billing cycle. Renewal cannot be cancelled. Privacy Policy: https://clover.ly/privacy Terms: https://m.icity.ly/tos

About

Random Reminder

This app helps you achieve deep focus quickly through a unique method involving random sound reminders and short breaks. It's designed to improve attention, memory, and learning performance by leveraging principles like neural replay and ultradian rhythms.

Highlights
  • Random sound interval reminders
  • 10-second micro-breaks
  • 90-minute focus sessions
  • Neural replay for memory
  • Variable ratio reinforcement
  • Zeigarnik effect utilization
Features
Read full description

“Random Reminder” is a new focus method designed to help you enter deep focus quickly. More than 400 people worldwide use it every second. With this method, you can stay focused for up to 90 minutes, improve your attention and memory, and enter a flow state more easily. == A New Focus Method == - Set a sound to play at random intervals (e.g., every 3–5 minutes). - Each time you hear the reminder sound, immediately close your eyes and rest for 10 seconds. - Then return to your work or study and continue focusing. Repeat this process until the 90-minute session ends. - After 90 minutes, take a 20-minute break. == Based on Four Core Principles == ■ Neural Replay During micro-breaks, your brain "replays" recently learned information at high speeds, improving memory retention and learning performance. ■ Variable Ratio Reinforcement Randomized feedback keeps the brain’s dopamine system engaged. Not knowing exactly when the next sound will occur maintains a healthy level of alertness and motivation. ■ Zeigarnik Effect Briefly interrupting a task creates a psychological "open loop." This makes your brain more eager to complete the task, helping you dive back in more effectively. ■ Ultradian Rhythms (90/20 Rule) The human brain naturally operates in 90-minute high-frequency cycles. Following this rhythm prevents burnout and maximizes mental endurance. ====== Personal growth website: https://zeenzeen.com Creator: 择恩 ====== “Random Reminder” can be downloaded and used for free. Core features are completely free. We also offer premium membership features to enhance the user experience. If you choose to subscribe to the premium membership, your iTunes account will be charged accordingly. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current subscription period. After subscribing, you can manage your subscription in your iTunes Store account settings. Privacy Policy https://zeenzeen.com/privacy Terms of Use https://zeenzeen.com/tos End User License Agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iHour4 screens
Random Reminder4 screens

Verdict

The call

The clearest difference is update cadence: Random Reminder at weekly against iHour's every 6 weeks. iHour's advantage is ratings volume (816 vs 18) and rating (4.8 vs 4.6). On price, review sentiment, ads and in-app purchases 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

Both are free to download. iHour sells 6 in-app purchases, starting at $0.49 per month and Random Reminder sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

iHour holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: iHour has 816 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 90% of iHour's written reviews are positive against 83% of Random Reminder's.

UpkeepUpdate frequency

iHour ships an update every 6 weeks, Random Reminder weekly. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

Scorecard4 real differences · 6 level
iHour versus Random Reminder: the parameters behind the verdict, then further details
ParameteriHourRandom Reminder
PriceFreeFree
Rating4.8 (816 ratings) — better4.6 (18 ratings)
Positive reviews90.5% of reviews — better83.3% of reviews
Number of ratings816 — better18
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS13.0 — better15.0
Further details — not scored
Size243 MB43 MB
Age rating4+4+
DeveloperiDaily Corp.志高 谢

Customer experience

iHour

All ratings816 ratings
Positive96.2%
Neutral1.5%
Negative2.3%
Written reviews462 reviews
Positive90.5%
Neutral3.9%
Negative5.6%

Random Reminder

All ratings18 ratings
Positive88.9%
Neutral5.6%
Negative5.6%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

Bugs and requests

iHour

Reported bugs

3 issues
  • Apple Watch version has sync issues
  • Countdown timer stops when screen is locked
  • Time records not always accurate

Requested features

5 requests
  • Add more detailed time tracking (e.g. down to the second)
  • Improve data visualization and analytics
  • Introduce a desktop/iPad version
  • Allow more customization of UI and sounds
  • Implement a dark mode option

Random Reminder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

iHour

Subscriptions1
  • iHour Pro - Monthly Membership7 Days trial$0.491 Month
One-time5
  • 咖啡$2.99
  • iHour Pro$3.99
  • 银币$5.99
Show 2 more
  • 金币$14.99
  • Coffee for Everyone$29.99
4 purchases

Random Reminder

Subscriptions3
  • 月度高级会员$2.991 Month
  • 季度高级会员$9.993 Months
  • 年度高级会员$24.991 Year
One-time1
  • 违约成本$0.99

Questions

Is iHour free?
iHour is free to download, with in-app purchases available.
Is Random Reminder free?
Random Reminder is free to download, with in-app purchases available.
Which has better reviews, iHour or Random Reminder?
iHour is rated higher. iHour averages 4.8 out of 5 from 816 ratings, while Random Reminder averages 4.6 from 18 ratings.
Do iHour or Random Reminder have ads?
Neither iHour nor Random Reminder shows ads.
Which is updated more often, iHour or Random Reminder?
iHour ships an update every 6 weeks, and Random Reminder weekly. Most recently, iHour was updated on October 23, 2026 and Random Reminder on October 14, 2026.

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