# Flow vs PDFDarkMode

The clearest difference is update cadence: PDFDarkMode at every 4 days against Flow's every 4 weeks. PDFDarkMode also leads on review sentiment (100% vs 86%) and rating (5.0 vs 4.8). Flow's advantage is ratings volume (1.7K vs 1) and device support (5 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Flow sells 3 in-app purchases, starting at $2.99 per month and PDFDarkMode sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PDFDarkMode holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Flow has 1.7K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 86% of Flow's written reviews are positive against 100% of PDFDarkMode's.

Flow ships an update every 4 weeks, PDFDarkMode every 4 days. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Flow | PDFDarkMode |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (1.7K ratings)](https://appshunter.io/ios/app/flow-focus-and-pomodoro-timer/id1423210932/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdfdarkmode-customize-pdfs/id6744872327/reviews)** |
| Number of ratings | **1.7K** | 1 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 80 MB | 4 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch, Vision Pro** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yugen GmbH](https://appshunter.io/developer/1362171211) | [Wildcatter LLC](https://appshunter.io/developer/1229934042) |

## What reviewers say

### Flow

[App page](https://appshunter.io/ios/app/flow-focus-and-pomodoro-timer/id1423210932)

Enhance your concentration and productivity with a scientifically proven method. This app divides your workflow into focused work intervals and scheduled breaks, helping you reduce stress and stay motivated. Ideal for work, study, or any task requiring deep focus.

**Highlights:** Pomodoro timer with work intervals and breaks, App and web blocking, Statistics tracking, Commitment mode, Inspirational quotes, Home & Lock Screen Widgets

**Features:** Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |
| Yearly Plan | $17.99 | per year |
| Lifetime Pro Access | $39.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Minimalist and uncluttered design
- 💡 Customizable work and break durations
- 🔒 No ads or unnecessary features
- 🤖 Responsive and helpful developers

**What reviewers complain about**

- 🐛 Occasional bugs and glitches
- 🔇 Notification sound could be louder
- 📊 Lack of detailed statistics and analytics
- 🔀 Inability to pause or resume a flow session
- 🖥️ Inability to minimize the timer window

**Reported bugs**

- Live activity feature not working consistently
- Timer not recording sessions accurately
- App blocking functionality not working as expected
- Crashes and freezes on certain macOS versions

**Requested features**

- Allow custom work and break durations
- Add option to pause and resume flow sessions
- Implement real-time sync across devices
- Provide more detailed productivity tracking and reporting
- Include an Apple Watch app with complication support


### PDFDarkMode

[App page](https://appshunter.io/ios/app/pdfdarkmode-customize-pdfs/id6744872327)

Easily convert PDFs to a comfortable dark mode with custom text and background colors. Reduce eye strain while reading or studying long documents. Save and revisit your personalized PDFs in a private library.

**Highlights:** Upload PDFs from device, Customize text and background colors, Preview dark mode changes, Download converted PDFs, Personal PDF library, Private by design

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Download PDF (up to 100 pages) | $0.99 | one-time |
| Dark Mode PDF Download | $2.99 | one-time |
| Download PDF (up to 500 pages) | $4.99 | one-time |
| PDFDarkMode Pro | $9.99 | one-time |
| Download PDF (500+ pages) | $9.99 | one-time |


## Frequently asked questions

### Is Flow free?

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

### Is PDFDarkMode free?

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

### Which has better reviews, Flow or PDFDarkMode?

PDFDarkMode is rated higher. Flow averages 4.8 out of 5 from 1.7K ratings, while PDFDarkMode averages 5.0 from 1 ratings.

### Do Flow or PDFDarkMode have ads?

Neither Flow nor PDFDarkMode shows ads.

### Which is updated more often, Flow or PDFDarkMode?

Flow ships an update every 4 weeks, and PDFDarkMode every 4 days. Most recently, Flow was updated on September 26, 2026 and PDFDarkMode on September 10, 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.*