Comparison

KeycoBoard vs Memento

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

Head to head
About

KeycoBoard

This app enhances your typing experience by allowing you to dictate text, rewrite existing content in various styles, and translate languages directly within any text field. It offers granular control over tone, length, and structure, all without leaving your current application.

Highlights
  • Voice input with style selection
  • Rewrite text with adjustable sliders
  • Translate text in-place
  • Context-aware writing
  • Works across multiple apps
  • On-device history storage
Read full description

Speak naturally, or rewrite text already in the current field. With nothing selected, KeycoBoard rewrites all the text it detects in the field; select part of it to rewrite only that part. You get the result in the tone, length and language you choose, right in the text field. No prompts to write. No copying and pasting between apps. VOICE INPUT YOU CONTROL Choose a style before you speak: more formal for a work update, more relaxed for a chat, or another language entirely. Tap the mic on the KeycoBoard keyboard and talk. Your words come back cleaned up and written in that style, ready to send. Follow progress on the Lock Screen and in the Dynamic Island. REWRITE WITH SLIDERS Set the sliders and tap Apply. With nothing selected, KeycoBoard rewrites all the text it detects in the current field. Select part of it, and only that part changes. Six dimensions give you 9,375 combinations: - Length: from a short summary to a fuller version - Depth: from plain words to expert terms - Tone: from casual to formal - Emotion: from neutral to enthusiastic - Emoji: from none to plenty - Structure: keep it conversational or turn it into a numbered list TRANSLATE IN PLACE Translate all the text detected in the current field, or select just the part you need. You can also speak in your own language and get text in another. Supported languages: English, Spanish, French, German, Italian, Chinese, Japanese, Korean, Russian and Cantonese. Reorder or hide languages in Settings. KNOWS WHAT YOU'VE ALREADY WRITTEN KeycoBoard uses the text already in the field as context, so formatting and wording fit what came before. Keep talking or writing without explaining the background again. WORKS WHERE YOU TYPE Use it in messaging, email, notes and most other apps with a text field. Tap the globe key to switch to KeycoBoard, and tap it again to go back to your usual keyboard. YOUR HISTORY STAYS ON YOUR DEVICE Your generation history, including text, results and voice recordings, is saved on your device. Delete it anytime or set automatic cleanup. FREE AND PRO The free plan includes 30 uses a month, shared across voice input and base-model rewriting and translation. KeycoBoard Pro includes: - Unlimited voice input, plus rewriting and translation with base models - Up to 100 advanced-model rewrites a month - Custom rewrite instructions - Early access to new features Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your App Store account settings. PERMISSIONS AND PRIVACY AI features need "Allow Full Access" so the keyboard can connect to the network. KeycoBoard uses the text in the current field to process your request. Requests are handled by third-party AI providers under their own policies. Our Privacy Policy explains how text and audio are processed. Privacy Policy: https://www.keycoboard.com/privacy Terms of Use: https://www.keycoboard.com/terms

About

Memento

Features
Read full description

Memento is a personal second-memory for your iPhone. Capture a thought in a voice note, a photo, or a line of text — then ask Memento later and it finds what you saved, with the context you need. Everything happens on your device. Apple Intelligence's on-device Foundation Models framework powers recall, transcription runs through Apple's on-device Speech framework, and scene understanding uses Apple's Vision framework. No account. No server. No network required. Memento works identically in airplane mode. — CAPTURE THE WAY YOUR HANDS ARE FREE — A single composer, bottom-anchored, always ready: • Hold the record pill to speak a memory. Release to save. • Tap the camera well for a quick photo. • Tap the text field to type. Memories save instantly. Tagging, transcription, and AI enrichment happen in the background; you never wait on a spinner. — RECALL IS A QUESTION, NOT A SEARCH — Ask the composer anything: • "what did I buy last Friday?" • "where did I park downtown?" • "that book a friend recommended last month" Memento infers intent — capture vs. recall — and answers with citations to the specific memories you saved. Every answer is grounded in your actual memories. Memento never makes up content. — THE CANVAS IS QUIET — Memento borrows the quiet confidence of a reading app: a warm paper canvas, a serif hero greeting, hairline borders you barely see. Circular icon wells give every tap target room. Ochre appears only where it means something — your brand mark and the primary action. — PRIVACY IS THE PRODUCT — • All AI runs on your device, using Apple's Foundation Models, Speech, Vision, and NaturalLanguage frameworks. • Your voice, photos, text, transcripts, tags, and embeddings never leave your iPhone. • No account. No sign-in. • No analytics, no tracking, no advertising SDKs. • No Memento server exists. — REQUIREMENTS — • iOS 26.0 or later. • iPhone 15 Pro or newer for full AI features (Apple Intelligence required). • Older iPhones running iOS 26 run in Degraded Mode: memories still save and browse normally; AI-powered tagging and recall are reduced. — HOW MEMENTO IS DIFFERENT — • Save first, enrich second. A memory is persisted locally before any AI runs. An AI hiccup never costs you a memory. • No mode toggle. One composer for capture and recall. Memento figures out which. • Grounded answers only. Every recall cites the memory it came from. Nothing invented. Memento is for anyone who has ever walked out of a store thinking "what did the cashier say about returns?", snapped a photo of a book cover and forgotten where they saved it, or told themselves they'd remember the name of that restaurant and didn't. Write your second memory. Keep it on your iPhone.

Screenshots

KeycoBoard4 screens
Memento3 screens

Verdict

The call

The clearest difference is in-app purchases: Memento at none against KeycoBoard's 3. Memento also leads on update cadence (daily vs every 2 weeks). KeycoBoard's advantage is iOS requirement (16.6 vs 26.0). On price, ads and device support 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. KeycoBoard sells 3 in-app purchases, starting at $3.99 per month. Memento asks for nothing beyond the download.

UpkeepUpdate frequency

KeycoBoard ships an update every 2 weeks, Memento daily. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
KeycoBoard versus Memento: the parameters behind the verdict, then further details
ParameterKeycoBoardMemento
PriceFreeFree
Rating4.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 2 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhoneiPhone
Requires iOS16.6 — better26.0
Further details — not scored
Size149 MB1 MB
Age rating17+4+
DeveloperKeyco Tech Ltd.Yichao Li

In-app purchases

3 purchases

KeycoBoard

Subscriptions2
  • KeycoBoard Pro (Monthly Plan)$3.991 Month
  • KeycoBoard Pro (Annual Plan)$29.991 Year
One-time1
  • KeycoBoard Pro LifeTime$29.99
None

Memento

No in-app purchases

Questions

Is KeycoBoard free?
KeycoBoard is free to download, with in-app purchases available.
Is Memento free?
Memento is free to download, with no in-app purchases.
Do KeycoBoard or Memento have ads?
Neither KeycoBoard nor Memento shows ads.
Which is updated more often, KeycoBoard or Memento?
KeycoBoard ships an update every 2 weeks, and Memento daily. Most recently, KeycoBoard was updated on October 30, 2026 and Memento on October 31, 2026.

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