SOSMS vs MarkFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SOSMS
Read full descriptionHide full description
This app is designed to assist you in emergency situations. Here are the basic steps to use the app: 1. Install the app on your mobile device. 2. Open the app and grant necessary permissions. 3. On the main screen, you can find buttons for sending an emergency SMS, turning on the flashlight etc. 4. If you need immediate help, press the emergency SMS button. You can customize the message that will be sent in the settings of the app. 5. In addition to sending an SMS, you can also share your location on our internet page. 6. Only If you allow location access, your location will be displayed anonymous on our internet page. 7. Make sure you have the necessary settings configured for the app to work properly. 8. In case of an emergency, you can indicate your status before including it in the SMS message. Remember, this app is designed for emergency use only. Use it wisely and only when necessary. Don't forget you need to send SMS from your messages app.
MarkFlow
A clean and fast reader for Markdown files, offering a comfortable, book-like experience with customizable themes and adjustable text. Easily navigate, search, and share your documents, with developer-friendly features like syntax highlighting.
- Book-like reading layout
- Multiple reading themes and dark mode
- Adjustable text size
- Table of contents generation
- In-document search
- Syntax highlighting for code blocks
- Export to PDF
Read full descriptionHide full description
MarkReader is a clean, fast Markdown reader built for reading MD and README files with a comfortable, book-like layout. **Read Markdown the way you want** • Beautiful typography and multiple reading themes • Dark mode and adjustable text size • Selectable text for easy copying **Navigate and find information quickly** • Table of contents (TOC) / outline generated from headings • Search within the current document and jump between matches **Open content from multiple sources** • Open local .md / .markdown files • Browse folders and read documents from a directory **Rich content rendering** • Full GitHub Flavored Markdown (GFM) — headings, bold, italic, strikethrough, blockquotes, tables, task lists, and more • Syntax highlighting for code blocks • Footnotes rendering • LaTeX math formulas — inline and block equations • Mermaid diagrams (flowcharts, sequence diagrams, and more) • HTML tags support — text styles, links, images, lists, tables, and more **Developer-friendly reading** • Rendered view, raw Markdown view, and side-by-side compare mode MarkReader is optimized for focused reading, whether you are browsing documentation, reading a README, or reviewing notes. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://yuwang001.github.io/xm/mf_privacy_policy.html
Screenshots
Verdict
The clearest difference is in-app purchases: SOSMS at none against MarkFlow's 3. MarkFlow's advantage is update cadence (weekly vs every 43 months) and device support (4 vs 2). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MarkFlow sells 3 in-app purchases, starting at $2.99 per month. SOSMS asks for nothing beyond the download.
SOSMS ships an update every 43 months, MarkFlow weekly. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.
| Parameter | SOSMS | MarkFlow |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (4 ratings) — better |
| Positive reviews | — | 75.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 43 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Murat Caglayan | 望 余 |
In-app purchases
SOSMS
No in-app purchases
MarkFlow
- Monthly Premium$2.991 Month
- Yearly Premium$19.991 Year
- Lifetime Access$12.99









