# Calflow vs Chrono

The clearest difference is in-app purchases: Chrono at none against Calflow's 3. Chrono also leads on review sentiment (100% vs 89%). Calflow's advantage is update cadence (every 10 days vs every 3 months) and ratings volume (129 vs 1). On price, rating, ads and iOS requirement there is nothing between them.

Both are free to download. Calflow sells 3 in-app purchases, starting at $3.99 per month. Chrono asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Calflow against 5.0 for Chrono. That said, the two scores are not equally well evidenced: Calflow has 129 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 89% of Calflow's written reviews are positive against 100% of Chrono's.

Calflow ships an update every 10 days, Chrono every 3 months. The most recent releases landed on October 18, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Calflow | Chrono |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (129 ratings)](https://appshunter.io/ios/app/calflow-planner-and-tracker/id6474122188/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chrono/id6753885021/reviews)** |
| Number of ratings | **129** | 1 |
| Positive reviews | 88.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 183 MB | 8 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kyovan Ltd.](https://appshunter.io/developer/1712594394) | [雨辰 沈](https://appshunter.io/developer/1845477994) |

## 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


### Chrono

[App page](https://appshunter.io/ios/app/chrono/id6753885021)

This intelligent efficiency app integrates calendar management, task planning, and time tracking. It seamlessly syncs with iOS Calendar and Reminders for a fluid schedule. Gain insights into your time usage with efficiency analysis and multi-device synchronization.

**Highlights:** Integrated calendar and task management, Seamless iOS Calendar & Reminders sync, Event and habit tracking, Customizable smart reminders, Efficiency analysis with charts, Multi-device synchronization (iPhone, iPad, Mac)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calflow free?

Calflow is free to download, with in-app purchases available.

### Is Chrono free?

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

### Which has better reviews, Calflow or Chrono?

Chrono is rated higher. Calflow averages 4.9 out of 5 from 129 ratings, while Chrono averages 5.0 from 1 ratings.

### Do Calflow or Chrono have ads?

Neither Calflow nor Chrono shows ads.

### Which is updated more often, Calflow or Chrono?

Calflow ships an update every 10 days, and Chrono every 3 months. Most recently, Calflow was updated on October 18, 2026 and Chrono on September 29, 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.*