# DuomiFlow vs InkBrook

The clearest difference is update cadence: DuomiFlow at weekly against InkBrook's every 3 weeks. DuomiFlow also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. DuomiFlow sells 3 in-app purchases, starting at $2.99 per 3 months and InkBrook sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

DuomiFlow ships an update weekly, InkBrook every 3 weeks. The most recent releases landed on October 19, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | DuomiFlow | InkBrook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/duomiflow-price-tracker/id6756597761/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 15 MB | 21 MB |
| Requires iOS | **17.5** | 18.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [栋君 金](https://appshunter.io/developer/1031060613) | [Dalian Junjing Xiyu Technology Co., Ltd.](https://appshunter.io/developer/6784915710) |

## What reviewers say

### DuomiFlow

[App page](https://appshunter.io/ios/app/duomiflow-price-tracker/id6756597761)

Record prices and data to track trends and gain long-term insights for better decision-making. Analyze historical data, identify abnormal movements, and compare multiple items to understand changing conditions. All data is stored locally for complete privacy.

**Highlights:** Record product prices, Track procurement costs, Manage recurring expenses, Monitor asset changes, Analyze long-term trends, Record market indicators and other data

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quarterly Membership | $2.99 | per 3 months |
| Annual Subscription | $4.99 | per year |
| Lifetime Pro | $14.99 | one-time |


### InkBrook

[App page](https://appshunter.io/ios/app/inkbrook/id6784915708)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 完整版 · 月 | $0.99 | per month |
| 完整版 · 年 | $4.99 | per year |


## Frequently asked questions

### Is DuomiFlow free?

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

### Is InkBrook free?

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

### Do DuomiFlow or InkBrook have ads?

Neither DuomiFlow nor InkBrook shows ads.

### Which is updated more often, DuomiFlow or InkBrook?

DuomiFlow ships an update weekly, and InkBrook every 3 weeks. Most recently, DuomiFlow was updated on October 19, 2026 and InkBrook on September 30, 2026.

---

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