# Watermark Max vs DuomiFlow

The clearest difference is in-app purchases: Watermark Max at none against DuomiFlow's 3. On price, ads, device support 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. Watermark Max asks for nothing beyond the download.

## The numbers

| Metric | Watermark Max | DuomiFlow |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Freemium |
| Size | 23 MB | 15 MB |
| Requires iOS | **17.0** | 17.5 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [VAI Holding Inc](https://appshunter.io/developer/1869734162) | [栋君 金](https://appshunter.io/developer/1031060613) |

## What reviewers say

### Watermark Max

[App page](https://appshunter.io/ios/app/watermark-max/id6754669108)

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

**In-app purchases:** none


### DuomiFlow

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

Manually record prices and monitor trends for informed decision-making. This privacy-focused tool offers offline data logging for various expenses and custom data points, providing visual insights without cloud reliance.

**Highlights:** Manual price tracking, Visual trend analysis, Custom data recording, 100% offline and private, No ads or cloud sync

**Features:** Vision Pro support, iPhone Duo 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 |


## Frequently asked questions

### Is Watermark Max free?

Watermark Max is free to download, with no in-app purchases.

### Is DuomiFlow free?

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

### Do Watermark Max or DuomiFlow have ads?

Neither Watermark Max nor DuomiFlow shows ads.

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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.*