# Calflow vs Random Reminder

The clearest difference is rating: Calflow at 4.9 against Random Reminder's 4.6. Calflow also leads on ratings volume (129 vs 18). Random Reminder's advantage is iOS requirement (15.0 vs 17.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Calflow sells 3 in-app purchases, starting at $3.99 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.

Calflow holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Calflow has 129 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 89% of Calflow's written reviews are positive against 83% of Random Reminder's.

Calflow ships an update every 10 days, Random Reminder weekly. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Calflow | Random Reminder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (129 ratings)](https://appshunter.io/ios/app/calflow-planner-and-tracker/id6474122188/reviews)** | [4.6 (18 ratings)](https://appshunter.io/ios/app/random-reminder-focus-timer/id6745423696/reviews) |
| Number of ratings | **129** | 18 |
| Positive reviews | **88.9% of reviews** | 83.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 183 MB | 43 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Kyovan Ltd.](https://appshunter.io/developer/1712594394) | [志高 谢](https://appshunter.io/developer/1811717824) |

## What reviewers say

### Calflow

[App page](https://appshunter.io/ios/app/calflow-planner-and-tracker/id6474122188)

This app integrates with your existing iOS Reminders and Calendars to help you track how you spend your time. It offers features for daily planning, time tracking, and goal setting, providing insights into your productivity within the Apple ecosystem.

**Highlights:** 2-way sync with iOS Reminders & Calendar, Time tracking for reminders and events, Time distribution insights, Powerful tag system for filtering, Goal and habit tracking, Apple Health and app usage sync

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $3.99 | per month |
| Annual plan | $12.99 | per year |
| One-time  purchase | $37.99 | one-time |

**What reviewers like**

- ⏱️ Excellent time tracking with automatic logging
- 📱 Seamless cross-device synchronization (iPhone, iPad, Mac, Apple Watch)
- 📅 Perfect integration with Apple Calendar and Reminders
- 🎯 Comprehensive goal-setting and insights features
- 🧩 Simple, intuitive user interface with low friction

**What reviewers complain about**

- 🐛 Timer synchronization issues across devices
- 🐛 Confusing insights calculation (double-counting existing calendar events)
- 🐛 Apple Watch complications not fully functional
- 🌙 No dark mode support
- 📱 iPad lacks some features available on iPhone

**Reported bugs**

- Timer doesn't sync across devices (iPhone to iPad/Mac)
- Live Activity not showing on iPad when timer active
- Apple Watch timers not accessible on other devices
- Widget display showing only black and white screen
- Insights double-counting time on existing calendar events

**Requested features**

- Dark mode support
- Mac menu bar timer widget
- Multiple simultaneous timers on iPhone
- Larger font size options
- Ability to copy and paste calendar events


### Random Reminder

[App page](https://appshunter.io/ios/app/random-reminder-focus-timer/id6745423696)

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:** Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度高级会员 | $2.99 | per month |
| 季度高级会员 | $9.99 | per 3 months |
| 年度高级会员 | $24.99 | per year |
| 违约成本 | $0.99 | one-time |


## Frequently asked questions

### Is Calflow free?

Calflow 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, Calflow or Random Reminder?

Calflow is rated higher. Calflow averages 4.9 out of 5 from 129 ratings, while Random Reminder averages 4.6 from 18 ratings.

### Do Calflow or Random Reminder have ads?

Neither Calflow nor Random Reminder shows ads.

### Which is updated more often, Calflow or Random Reminder?

Calflow ships an update every 10 days, and Random Reminder weekly. Most recently, Calflow was updated on October 23, 2026 and Random Reminder on October 14, 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.*