# Duoflow vs Phaseboard

The clearest difference is update cadence: Duoflow at every 3 days against Phaseboard's every 2 months. Phaseboard's advantage is device support (3 vs 1) and iOS requirement (18.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Duoflow sells 3 in-app purchases, starting at $0.99 per month and Phaseboard sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Duoflow ships an update every 3 days, Phaseboard every 2 months. The most recent releases landed on September 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Duoflow | Phaseboard |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 2 months |
| Monetization | Freemium | — |
| Size | 72 MB | 13 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Tianjin Ruikai Technology Co., Ltd](https://appshunter.io/developer/1766739205) | [东堃 许](https://appshunter.io/developer/1890379861) |

## 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 (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $0.99 | per month |
| 年度会员 | $4.99 | per year |
| 永久会员 | $6.99 | one-time |


### Phaseboard

[App page](https://appshunter.io/ios/app/phaseboard/id6768083078)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro · Monthly | $1.99 | per month |
| Pro · Yearly | $8.99 | per year |
| Pro · Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Duoflow free?

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

### Is Phaseboard free?

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

### Do Duoflow or Phaseboard have ads?

Neither Duoflow nor Phaseboard shows ads.

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

Duoflow ships an update every 3 days, and Phaseboard every 2 months. Most recently, Duoflow was updated on September 1, 2026 and Phaseboard on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*