Comparison

MergeKey vs Adayda

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

Head to head
About

MergeKey

This keyboard dynamically adjusts key sizes and visibility as you type, offering larger tap targets and fewer errors. It supports 20 languages and includes customizable styles and privacy-focused features.

Highlights
  • Dynamic key resizing
  • Hides impossible keys
  • Supports 20 languages
  • Customizable styles
  • Privacy-focused
  • Typing game
Read full description

MergeKey — the first keyboard that hides the keys you don't need. As you type, MergeKey dynamically removes impossible letters and expands the remaining keys, giving you bigger tap targets and fewer typos. It's like autocomplete, but visual — you see your options shrink in real time. MERGE MODE — UNIQUE TO MERGEKEY - Keys that can't continue your word disappear instantly - Remaining keys grow to fill the space — bigger keys, fewer mistakes - Learns new words you teach it - Toggle Merge Mode off if you prefer just the disappearing keys without resizing MADE FOR IPAD - Full-size layouts on large iPads, a roomier compact layout on smaller ones - Pinch to split the keyboard for thumb typing, with adjustable split distance - Two-finger trackpad: drag across the keys to move the cursor - Letters Only mode for a clean, focused board - Split typing on iPhone too, in landscape 31 LANGUAGES English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Slovenian, Greek, Turkish, Bulgarian, Russian, Ukrainian, Indonesian, Vietnamese, Swedish, Finnish, Danish, Norwegian, Icelandic, Lithuanian, Romanian, Hungarian, Irish, Hebrew, Arabic, Urdu (Latin), Bangla and Hindi — each with native prediction and accented character variants. English (US/GB), Spanish (ES/MX) and Portuguese (BR/PT) with correct regional dictionaries. Hindi, Bangla and Urdu in Latin letters. SMART FEATURES - Quick Settings right in the keyboard — tap the MergeKey icon - Scrolling prediction bar with up to 9 word suggestions - Long-press for accented letters and symbols - Character preview bubble on key tap - Optional dedicated number row - Double-tap shift for caps lock - Backspace hold-to-accelerate (characters, then words) - Hold 123 for a fan of digits; hold the comma key for more signs CUSTOMIZABLE STYLE - 14 keyboard styles: Default, Liquid Glass (iOS 26), Classic, Ink on Paper, Typewriter, Keycaps, Sharp, Brick, Pixel, Glossy, Metal, Backlit, Calculator, Neon - Custom key fill, border, character and accent colors - Letters that grow with their keys as they merge (optional) - 6 key fonts - Keyboard height: Compact, Normal or Tall - Transparency slider for key fill opacity - Animation speed control - Live keyboard preview in Settings and Style - Own colors for single function keys, a Black and White accent and Reset Style BUILT FOR LEARNERS - Swipe up to teach MergeKey a new word - Swipe down for continuous mode (all keys visible) - Swipe left to delete whole words - Swipe right to paste the last thing you copied - Key heatmap per language shows which letters you type most and where your thumb lands - Built-in typing game to practice in any language - Live lessons in How to – every gesture plays on your own keyboard - 3 mini games: Tennis, Surfing, Penalty Kick PRIVACY FIRST MergeKey does not collect or transmit your typing data. Everything stays on your device. MergeKey never connects to the internet. The only network activity is the App Store handling the optional tips – that's why iOS shows a Mobile Data switch for MergeKey. The optional clipboard keeps your texts on this device only. Word lists based on the Leipzig Corpora Collection (CC BY 4.0). AI4Bharat Aksharantar (CC BY).

About

Adayda

Features
Read full description

Adayda is a parental screen activity analysis tool designed to help parents better understand digital usage patterns. With Adayda, parents can gain insights into on-screen activity during active sessions and receive AI-powered analysis to support safer and more mindful device use. HOW IT WORKS • Start a session using the system interface • Adayda analyzes on-screen activity in real time • Receive clear, structured insights about content and usage patterns KEY FEATURES • Real-time screen activity analysis • AI-powered content insights • Session-based review system • Local data storage on device • Simple and parent-focused design IMPORTANT INFORMATION • Adayda is designed for parents and legal guardians • Sessions can only be started manually by the user • The app cannot start sessions automatically or in the background • On-screen activity is analyzed only during active sessions PRIVACY FIRST • Data is processed securely and not stored permanently • No personal accounts or identifiable user profiles are created • No behavioral advertising or cross-app tracking • Data is minimized and used only to provide core functionality SUBSCRIPTION Adayda offers optional auto-renewable subscriptions (Adayda Plus and Adayda Premium) with weekly, monthly, quarterly and yearly options. Prices are shown in the app before purchase and may vary by region. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your App Store account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.adayda.com/privacy-policy.html DISCLAIMER Adayda provides informational insights only and does not guarantee accuracy or completeness of analysis results.

Screenshots

MergeKey4 screens
Adayda4 screens

Verdict

The call

The clearest difference is in-app purchases: MergeKey at none against Adayda's 8. MergeKey also leads on update cadence (every 4 days vs every 2 weeks). Adayda's advantage is iOS requirement (16.4 vs 18.0). 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. Adayda sells 8 in-app purchases, starting at $4.99 per 7 days. MergeKey asks for nothing beyond the download.

UpkeepUpdate frequency

MergeKey ships an update every 4 days, Adayda every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
MergeKey versus Adayda: the parameters behind the verdict, then further details
ParameterMergeKeyAdayda
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.016.4 — better
Further details — not scored
Size39 MB44 MB
Age rating4+4+
DeveloperAndrei AchzigerAyda M Akgoz

In-app purchases

None

MergeKey

No in-app purchases

8 purchases

Adayda

Subscriptions8
  • Adayda Plus Weekly$4.997 Days
  • Adayda Plus Monthly3 Days trial$14.991 Month
  • Adayda Plus Quarterly3 Days trial$34.993 Months
Show 5 more
  • Adayda Premium Weekly$34.997 Days
  • Adayda Premium Monthly$99.991 Month
  • Adayda Plus Yearly3 Days trial$119.991 Year
  • Adayda Premium Quarterly$239.993 Months
  • Adayda Premium Yearly$699.991 Year

Questions

Is MergeKey free?
MergeKey is free to download, with no in-app purchases.
Is Adayda free?
Adayda is free to download, with in-app purchases available.
Do MergeKey or Adayda have ads?
Neither MergeKey nor Adayda shows ads.
Which is updated more often, MergeKey or Adayda?
MergeKey ships an update every 4 days, and Adayda every 2 weeks. Most recently, MergeKey was updated on October 24, 2026 and Adayda on October 28, 2026.

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