# Femto Editor — A lightweight plaintext editor

> Lightweight plaintext editor for iOS with Markdown support and cloud syncing. (iPhone/iPad app by Justin Hamilton.)

- Source: https://appshunter.io/ios/app/femto-editor/id1482210825 (this page in markdown: same URL + `.md`)
- Developer: [Justin Hamilton](https://appshunter.io/developer/1481012609)
- Category: Utilities
- Price: $0.99
- Rating: 4.50/5 from 13 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 2 MB
- Languages: English, German, Hindi, Japanese, Chinese
- Released: 2019-10-25
- Data updated: 2026-07-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/femto-editor/id1482210825/reviews.md

## What is Femto Editor?

Femto is a simple, lightweight plaintext editor for iOS.

It's designed primarily as a place to quickly get your thoughts down into text: it launches in less than half a second ready to type, and you can even create and open notes from the home screen.

With powerful features like Markdown support, external keyboard shortcuts, multiwindow support, URL scheme support, and more, Femto is perfect for both light users and power users alike.

Whether you’re making a list of groceries, or writing down your next big idea, Femto will be ready to take it all in.

Features:
- Simple and clean design, only using icons from SF Symbols
- Quick list creation
- Markdown formatting and syntax highlighting
- Open text files from any provider (Dropbox, Google Drive, etc.) from within the app or via the Share Sheet
- Star notes for easy access
- Create new notes using iCloud or Dropbox
- Appearance customization (font family/size, light/dark appearance, accent color, etc.)
- Home screen shortcuts to create/open notes and view starred notes
- Split View and Multiwindow support (iPadOS Only)
- External keyboard support
- Comprehensive VoiceOver support
- Language support for English, Chinese (Traditional), German, Japanese, and Hindi
- No ads!

## Key features

- Quick note creation
- Markdown support
- External keyboard shortcuts
- Cloud syncing (iCloud, Dropbox)
- Appearance customization
- Multiwindow support

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/femto-editor/id1482210825/reviews.md

### 5/5 — clean, well-designed text editor

*2023-01-23, version 1.2.2*

I’m always on the lookout for a simple file-based (vs database) text editor that doesn’t get in my way and allows me to use Dropbox, which contains all my files and quick access scratchpads. The settings are straightforward and support the simple purpose. It’s easy to open a new note/doc (directly from the home screen icon), and send its contents via the share menu, which duplicates the functionality of some far more complicated apps. Even though it hasn’t been updated in a couple years, it’s solid. hope development continues.

### 4/5 — Hidden gem

*2020-06-13, version 1.2.2*

Great little basic text editor. No big bulky features I don’t need. Opens and saves plain text files compatible with everything.

Best “hidden” feature, fully functional as a side-over app on my iPad. Need to jot down a quick note? Side it out, type, and slide it back. Perfect!

### 5/5 — Perfect MD Note Taking App

*2020-04-17, version 1.2.1*

Femto is a great note taking app, but I cannot seem to save a note. I can’t find the button or anything of the sort when I want to save a note. The only thing I can do is just leave that note open until I don’t need it anymore and start a blank one. Is there something I’m missing? A simple button to save is all I’m asking for.

Edit: After a quick response from the developer, I have figured out how to save notes. Props to this app which helps me in the day to day, and to Justin for the fast replies and supporting his users.

**Developer response:** Notes save automatically when either the keyboard is dismissed or when the app is exited. If you're on iPadOS with an external keyboard, you can use CMD+S to save as well. When a note is saved, you should see an alert saying so (which will be more clear in the upcoming update).

### 5/5 — Nail? Hammered.

*2020-02-23, version 1.1.2*

Fast easy markdown impulse-capture idiot-proof. You had one job, one! And ya f€%k1ng nailed it.

### 1/5 — Crashes

*2020-02-10, version 1.1.1*

Had high hopes for this. But every time I try to create a new note it crashes. Every time. Renders this app completely useless.

**Developer response:** I have your crash report, I'm going to fix that up and push an update out soon. Thanks for the feedback!

Update: I've fixed your issue, and I'm pushing the update as soon as I can.

## Frequently asked questions about Femto Editor

### What is Femto Editor?

Femto Editor is a lightweight plaintext editor for iOS designed for quick note-taking and powerful text editing. It launches rapidly and supports features like Markdown, external keyboards, and cloud syncing.

### How much does Femto Editor cost?

Femto Editor is a paid app, available for a one-time purchase of $0.99. There are no in-app purchases or subscriptions required.

### Does Femto Editor have ads?

No, Femto Editor is completely ad-free. Users can enjoy an uninterrupted writing experience without any advertisements.

### What devices is Femto Editor compatible with?

Femto Editor is compatible with iPhone, iPad, and iPod touch devices. It also offers specific features like Split View and Multiwindow support for iPadOS.

### Can I sync my notes with other devices using Femto Editor?

Yes, Femto Editor supports creating new notes using iCloud or Dropbox, allowing you to sync your text files across your devices.

### Does Femto Editor support Markdown formatting?

Yes, Femto Editor includes full Markdown support, complete with syntax highlighting, making it ideal for users who prefer writing in Markdown.

### How often is Femto Editor updated?

The latest version, 1.2.2, was released on June 3, 2020. While the last update was in 2020, the app's core functionality is stable and reliable for its intended purpose.

### What is the age rating for Femto Editor?

Femto Editor has an age rating of 4+, making it suitable for users of all ages. It is designed for general use and does not contain any mature content.

## Version history (last 1 release)

### 1.2.2 — 2020-06-03

Until June 17th, 100% of all proceeds from Femto will go towards organizations fighting racism and police brutality. Learn more on femtoeditor.com.

Otherwise, this is just a simple maintenance update.

Changed:
* Fixed a few more German translations (thanks Matthias!)
* Reinstated “None” timeout delay option

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## More apps by Justin Hamilton

- [Dot Music Player](https://appshunter.io/ios/app/dot-music-player/id1510755057)
- [Affirmations - Care Reminders](https://appshunter.io/ios/app/affirmations-care-reminders/id1549333734)

All apps by Justin Hamilton: https://appshunter.io/developer/1481012609

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-01.*