# Duoflow vs 序日

The clearest difference is iOS requirement: 序日 at 18.0 against Duoflow's 26.0. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Duoflow sells 4 in-app purchases, starting at $1.99 per month and 序日 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Duoflow against 5.0 for 序日. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Duoflow ships an update every 4 days, 序日 every 2 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Duoflow | 序日 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/duoflow/id6767079360/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/id6811274043/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 84 MB | 23 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Tianjin Ruikai Technology Co., Ltd](https://appshunter.io/developer/1766739205) | [琦 张](https://appshunter.io/developer/6811089301) |

## What reviewers say

### Duoflow

[App page](https://appshunter.io/ios/app/duoflow/id6767079360)

Record notes, to-dos, and diaries through a chat interface. Customize chat bubbles for visual organization and easily manage different content types. Syncs seamlessly across Apple devices via iCloud.

**Highlights:** Chat-based recording, Customizable chat bubbles, Multiple message types (text, image, video, audio, location), Multiple conversation groups, iCloud synchronization, Cross-device continuity

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $1.99 | per month |
| 年度会员 | $12.99 | per year |
| 永久会员 | $14.99 | one-time |
| 永久会员 | $17.99 | one-time |


### 序日

[App page](https://appshunter.io/ios/app/id6811274043)

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 序日 Pro · One-time Purchase | $1.99 | one-time |


## Frequently asked questions

### Is Duoflow free?

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

### Is 序日 free?

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

### Which has better reviews, Duoflow or 序日?

Duoflow and 序日 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Duoflow or 序日 have ads?

Neither Duoflow nor 序日 shows ads.

### Which is updated more often, Duoflow or 序日?

Duoflow ships an update every 4 days, and 序日 every 2 days. Most recently, Duoflow was updated on October 25, 2026 and 序日 on October 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.*