macOS · comparison

Rekey vs Keyboop

Both are free, native macOS apps that correct text typed in the wrong keyboard layout automatically. They differ in language coverage, in what else they do, and in whether the source is open.

Short version: Keyboop is an open-source (MIT) utility for Russian and English that corrects automatically and adds a wide toolbox: a manual conversion hotkey with a flexible undo window, selection conversion, snippets, typo and Caps Lock fixes, and local dictation. Rekey is a focused automatic corrector for 34 languages, including Ukrainian. If you type only Russian and English and want an all-in-one tool with open source, Keyboop fits well; if you type Ukrainian or another language pair, Rekey covers it.

Keyboop and Rekey solve the same core problem in a similar way: both watch word boundaries and use a dictionary plus letter-sequence statistics to decide whether a word was typed in the wrong layout, then fix it without a shortcut. Both are free, distributed as notarized DMGs with automatic updates, and keep typed text on the Mac.

The differences are in scope. Keyboop ships language data for one pair, Russian and English, and builds a broader toolbox around it — manual conversion, snippets, typo correction, a Caps Lock fix, dictation, translation and clipboard history. Rekey concentrates on automatic correction across 34 languages and resolves short, ambiguous words by waiting for the next word before deciding.

Rekey vs Keyboop at a glance

Based on each project’s public information and source, September 2026.

Rekey

Keyboop

Automatic correction as you type

✓

Languages

34, including Ukrainian

Russian and English

Detection

Dictionary + n-grams, multi-word context

Dictionary + trigrams, previous-word context

Manual conversion hotkey / selected text

✓

Undo a correction

Cmd+Z within 5 s, learns the word

Hotkey: last word, N words or a time window

Per-app exclusions (terminals, code editors)

✓

Snippets, typo fix, Caps Lock fix

✓

Dictation, translation, clipboard history

✓

Layout indicator at the cursor

✓

Menu bar / Caps Lock LED

Open source

yes (MIT)

Minimum macOS

14 on Apple Silicon, 13 on Intel

Price

Free

Free (donations)

Comparison based on publicly available information, June 2026.

Where Rekey differs

A narrower tool with wider language coverage.

34 languages

Ukrainian, Polish, German, Greek, Georgian, Armenian, Thai and more — not a single language pair.

Context for short words

Short words that could belong to either language wait for the next word, so one ambiguous token does not decide on its own.

Focused by design

Rekey does one job — automatic layout correction — with a cursor-side layout indicator and an undo that learns.

FAQ

What is the main difference between Rekey and Keyboop?

Language coverage and scope. Keyboop corrects Russian and English and adds many extra tools such as snippets and dictation. Rekey focuses on automatic correction and supports 34 languages, including Ukrainian.

Does Keyboop support Ukrainian?

Keyboop ships language data for Russian and English only. For Ukrainian and English, or any other supported pair, Rekey detects and corrects the layout automatically.

Is Keyboop open source?

Yes, Keyboop is published under the MIT licence. Rekey is free but not open source.

Can Rekey convert selected text with a hotkey?

No. Rekey corrects automatically as you type and offers a layout-switch hotkey, but not on-demand conversion of selected text. Keyboop offers both.

Are both apps private?

Both process typed text on the Mac. Rekey’s network use is limited to update checks, one anonymous install ping and opt-in crash diagnostics; Keyboop documents update checks, model downloads for dictation and user-initiated feedback.

Typing more than Russian and English?

Rekey corrects the wrong layout automatically in 34 languages. Download the free beta for macOS.

Download for macOS

macOS 13+ · Apple Silicon & Intel