The Margin vs SFD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Margin
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Track every writing session. Watch your manuscript grow. The Margin helps you build a consistent practice — one page at a time. LOG EVERY SESSION Finished a writing sprint? Log your word count, chapter, mood, and notes. WATCH YOUR MANUSCRIPT GROW Your home screen shows a manuscript stack that grows with every session. See your total word count, daily progress, and how close you are to your goal. TIMED WRITING SESSIONS Set a timer and write. A rotating collection of writing tips and craft quotes motivates you while the clock runs. TRACK MULTIPLE PROJECTS Working on a novel and a screenplay? Each project gets its own session history, word count, and progress bar. KNOW YOUR PATTERNS Weekly, monthly, and yearly insights show you when you write best, how consistent you are, and where your streaks land. Stats include average words per session, best writing day, and words-per-week trends. STREAKS AND MILESTONES Every day you write counts. The Margin tracks your current streak, personal best, and milestones like your longest streak and biggest session. MOOD TRACKING Tag each session with how the writing felt: dry, grinding, steady, flow, or sparks. Over time, see which moods correlate with your best output.
SFD
This app helps you overcome writer's block by forcing you to write a first draft without the ability to edit or reread. It uses timed bursts and nudges to keep you moving forward, allowing you to flag sections for later revision.
- Forward-only writing
- Timed writing bursts
- Cursor nudges for stalls
- Flagging sections for revision
- Plain text export
- Offline functionality
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Writing apps help with the easy half — outlines, fonts, folders, word-count trophies. The hard half is producing a bad first version of something, and that's all SFD does. SFD is forward-only. You write in a burst, the earlier lines dim and scroll away, and you can't go back to fix them. You can't edit a draft into existence, so SFD won't let you try until it's out. How it works: — A go is a timed burst. You write. You don't reread. — Stall for a few seconds and you get a shove — a nudge that gets blunter the longer you stare at the cursor. — Hit a line you hate? Drop a later and keep moving. Your flags become a punch-list for when you revise. — A finished part is a chunk. A stack of chunks is the Pile — your whole first draft. — When it's done, send it out as plain text, to wherever you actually revise. Drafting is free. Every go, every later, every export — no account, no trial clock, no nagging. One thing costs money: SFD Habit Tracking, a 99-cent one-time unlock for the habit layer — the streak map and year wall, the month goal, THE BIG MONTH (50,000 words across November), the home-screen widget, the quiet reminder, stamps, and share cards. The scoreboard, not the game. If you bought SFD back when the app itself cost money, the habit layer is yours automatically. What SFD won't do: format, outline, sync, collaborate, or write the draft for you. You write the bad version. A chunk has to get written; inside that, anything goes. Your words stay yours. Every chunk is a plain-text file on your device. No proprietary format, no servers. SFD makes no network calls at all — it can't lose your words and it can't trap them. Get the first draft out. You can make it good later, somewhere with a real keyboard.
Screenshots
Verdict
The clearest difference is in-app purchases: The Margin at none against SFD's 1. SFD's advantage is device support. On price and iOS requirement 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. SFD sells 1 one-off in-app purchase. The Margin asks for nothing beyond the download.
| Parameter | The Margin | SFD |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 8 days |
| Ads | — | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Paid |
| Devices | — | iPhone, iPad, Mac — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Cambria Davies | Daniel James Kinney-Spears |
In-app purchases
The Margin
No in-app purchases
SFD
- SFD Habit Tracking$0.99









