# Copin Text Stock Notes vs Duoflow

The clearest difference is device support: Copin Text Stock Notes at 3 against Duoflow's 1. Copin Text Stock Notes also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Copin Text Stock Notes ships an update weekly, Duoflow every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Copin Text Stock Notes | Duoflow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/duoflow/id6767079360/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 3 MB | 84 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eri Takemiya](https://appshunter.io/developer/1880592105) | [Tianjin Ruikai Technology Co., Ltd](https://appshunter.io/developer/1766739205) |

## What reviewers say

### Copin Text Stock Notes

[App page](https://appshunter.io/ios/app/copin-text-stock-notes/id6759777817)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Copin Pro (One-time Purchase) | $4.99 | one-time |


### 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 |


## Frequently asked questions

### Is Copin Text Stock Notes free?

Copin Text Stock Notes is free to download, with in-app purchases available.

### Is Duoflow free?

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

### Do Copin Text Stock Notes or Duoflow have ads?

Neither Copin Text Stock Notes nor Duoflow shows ads.

### Which is updated more often, Copin Text Stock Notes or Duoflow?

Copin Text Stock Notes ships an update weekly, and Duoflow every 4 days. Most recently, Copin Text Stock Notes was updated on October 24, 2026 and Duoflow on October 25, 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.*