# C6协同v3.9 vs Bullet Journal

The clearest difference is price: C6协同v3.9 at Free against Bullet Journal's $0.99. C6协同v3.9 also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (7.0 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

C6协同v3.9 is free to download; Bullet Journal costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

C6协同v3.9 ships an update every 3 weeks, Bullet Journal every 4 months. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | C6协同v3.9 | Bullet Journal |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bullet-journal-note-reminder/id6475782771/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | — | Paid |
| Size | 21 MB | 25 MB |
| Requires iOS | **7.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BEIJING JINHER SOFTWARE CO.LTD.](https://appshunter.io/developer/473901494) | [Mizzy Inc.](https://appshunter.io/developer/1454074168) |

## What reviewers say

### C6协同v3.9

[App page](https://appshunter.io/ios/app/c6v39/id1173412813)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bullet Journal

[App page](https://appshunter.io/ios/app/bullet-journal-note-reminder/id6475782771)

This simple note-taking app helps you stay organized and productive by allowing you to create tasks, set reminders, and jot down notes all in one convenient place. It's designed for ease of use to manage your daily to-dos and thoughts.

**Highlights:** Task creation, Reminder setting, Note taking, Simple interface, Organization tool

**In-app purchases:** none


## Frequently asked questions

### Is C6协同v3.9 free?

C6协同v3.9 is free to download, with no in-app purchases.

### Is Bullet Journal free?

Bullet Journal costs $0.99, with no in-app purchases.

### Do C6协同v3.9 or Bullet Journal have ads?

Neither C6协同v3.9 nor Bullet Journal shows ads.

### Which is updated more often, C6协同v3.9 or Bullet Journal?

C6协同v3.9 ships an update every 3 weeks, and Bullet Journal every 4 months. Most recently, C6协同v3.9 was updated on October 4, 2026 and Bullet Journal on October 24, 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.*