Comparison

SOSMS vs MarkFlow

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SOSMS

Features
Read 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.

About

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.

Highlights
  • 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
Features
Read 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

SOSMS4 screens
MarkFlow4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MarkFlow sells 3 in-app purchases, starting at $2.99 per month. SOSMS asks for nothing beyond the download.

UpkeepUpdate frequency

SOSMS ships an update every 43 months, MarkFlow weekly. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
SOSMS versus MarkFlow: the parameters behind the verdict, then further details
ParameterSOSMSMarkFlow
PriceFreeFree
Rating—4.5 (4 ratings) — better
Positive reviews—75.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 43 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.013.0 — better
Further details — not scored
Size2 MB45 MB
Age rating4+4+
DeveloperMurat Caglayan望 余

In-app purchases

None

SOSMS

No in-app purchases

3 purchases

MarkFlow

Subscriptions2
  • Monthly Premium$2.991 Month
  • Yearly Premium$19.991 Year
One-time1
  • Lifetime Access$12.99

Questions

Is SOSMS free?
SOSMS is free to download, with no in-app purchases.
Is MarkFlow free?
MarkFlow is free to download, with in-app purchases available.
Do SOSMS or MarkFlow have ads?
Neither SOSMS nor MarkFlow shows ads.
Which is updated more often, SOSMS or MarkFlow?
SOSMS ships an update every 43 months, and MarkFlow weekly. Most recently, SOSMS was updated on October 8, 2026 and MarkFlow on October 3, 2026.

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