# ScreenLines vs FlowDown

The clearest difference is rating: ScreenLines at 5.0 against FlowDown's 4.3. ScreenLines also leads on review sentiment (100% vs 80%) and iOS requirement (15.0 vs 17.0). FlowDown's advantage is in-app purchases (none vs 2) and update cadence (every 4 days vs every 5 weeks). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. ScreenLines sells 2 in-app purchases, starting at $2.99 per year. FlowDown asks for nothing beyond the download.

ScreenLines holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 19 and 28 respectively. Written reviews point the same way: 100% of ScreenLines's written reviews are positive against 80% of FlowDown's.

ScreenLines ships an update every 5 weeks, FlowDown every 4 days. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ScreenLines | FlowDown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (19 ratings)](https://appshunter.io/ios/app/screenlines/id6739783494/reviews)** | [4.3 (28 ratings)](https://appshunter.io/ios/app/flowdown-open-and-fast-ai/id6740553198/reviews) |
| Number of ratings | 19 | **28** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | **Free** | Paid |
| Size | 8 MB | 124 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 17+ |
| Developer | [Artem Bolotov](https://appshunter.io/developer/901756576) | [子衎 王](https://appshunter.io/developer/1710838888) |

## What reviewers say

### ScreenLines

[App page](https://appshunter.io/ios/app/screenlines/id6739783494)

This utility app provides a visual guide to perfectly align screen protectors on your device. It displays a white guideline around the screen edges, helping you position the protector with precision for a flawless installation.

**Highlights:** On-screen alignment guideline, Edge-to-edge white border, Step-by-step installation instructions, Tutorial video, Preparation tips, Keeps screen awake

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Yearly | $2.99 | per year |
| Premium Forever | $6.99 | one-time |


### FlowDown

[App page](https://appshunter.io/ios/app/flowdown-open-and-fast-ai/id6740553198)

This AI chat app offers a fast, focused, and controlled experience for working with large language models. It supports rich Markdown formatting, connects to various OpenAI-compatible APIs, and allows input via text, images, and audio. Enjoy smooth conversations and automatic chat titles for better organization.

**Highlights:** Fast and efficient AI chat, Rich Markdown rendering, Connects to OpenAI-compatible APIs, Supports text, image, and audio input, Automatic chat titles, Shortcut integrations, Privacy-focused design

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ScreenLines free?

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

### Is FlowDown free?

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

### Which has better reviews, ScreenLines or FlowDown?

ScreenLines is rated higher. ScreenLines averages 5.0 out of 5 from 19 ratings, while FlowDown averages 4.3 from 28 ratings.

### Do ScreenLines or FlowDown have ads?

Neither ScreenLines nor FlowDown shows ads.

### Which is updated more often, ScreenLines or FlowDown?

ScreenLines ships an update every 5 weeks, and FlowDown every 4 days. Most recently, ScreenLines was updated on October 5, 2026 and FlowDown on October 15, 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.*