Comparison

Trajectory vs MarkFlow

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

Head to head
About

Trajectory

Features
Read full description

Detects the trajectories of shapes moving along a parabolic path

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

Trajectory1 screens
MarkFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: Trajectory at none against MarkFlow's 3. MarkFlow's advantage is ads (none vs shown) and update cadence (weekly vs fortnightly). On price 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. Trajectory asks for nothing beyond the download.

UpkeepUpdate frequency

Trajectory ships an update fortnightly, MarkFlow weekly. The most recent releases landed on November 14, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Trajectory versus MarkFlow: the parameters behind the verdict, then further details
ParameterTrajectoryMarkFlow
PriceFreeFree
Rating—4.5 (4 ratings) — better
Positive reviews—75.0% of reviews
Number of ratings—4 — better
Update frequencyFortnightlyWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad, iPod, Mac — better
Requires iOS17.7.213.0 — better
Further details — not scored
Size36 MB45 MB
Age rating4+4+
DeveloperHideaki Uchikoshi望 余

In-app purchases

None

Trajectory

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 Trajectory free?
Trajectory is free to download, with no in-app purchases.
Is MarkFlow free?
MarkFlow is free to download, with in-app purchases available.
Do Trajectory or MarkFlow have ads?
Trajectory shows ads; MarkFlow does not.
Which is updated more often, Trajectory or MarkFlow?
Trajectory ships an update fortnightly, and MarkFlow weekly. Most recently, Trajectory was updated on November 14, 2026 and MarkFlow on October 30, 2026.

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