Comparison

Memokeys vs SynPlex AI Lyrics & Song Maker

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

Head to head
About

Memokeys

Features
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The Memokeys app provides an easy and fun way to memorise connections between words: a great help in learning foreign languages and unfamiliar terms! You enter a couple of words or expressions - keys. A smart algorithm that uses a human memory model will quiz you to remember the connections between words from the first to the second or vice versa. The successes and mistakes of your actions are analyzed and remembered. The algorithm adapts to select the most essential pair of words for you at any time. For the best performance of the algorithm, it is desirable to enter a couple of dozen pairs of words over several days. Each key pair has a unique background color scheme associated with the text code. You can add an image from your photo collection to the key pair, or take an instant camera photo. FAQ How to adjust the probability balance of the quiz from the first word to the second? - The smart algorithm manages the direction on its own, but you can manually adjust the desired probability in the Settings page. The new settings take effect gradually. Is it case-sensitive, as well as spaces? - No, you don't have to worry about letter case, leading and trailing spaces. How to edit or delete a pair of memo word keys? - After passing the quiz, you can click on the Edit button. There will also be the Delete option. Did you know? The app's background gradient is a clock in 24 hour time format.

About

SynPlex AI Lyrics & Song Maker

Generate original song lyrics and AI-powered vocals based on your ideas or prompts. Then, transform your creations into engaging lyric videos with customizable backgrounds, fonts, and animations.

Highlights
  • AI lyric generation
  • AI vocal synthesis
  • Lyric video creation
  • Customizable video styles
  • Timeline editing
  • Song library
  • Multi-language support
Features
Read full description

Make a song with AI, then turn it into a lyric video. SynPlex AI is an AI lyric generator, song maker and lyric video studio in one app. Type an idea or paste your own lyrics, and the AI writes the lyrics, picks the style and sings your song with AI vocals. Then open it in the video editor, style a karaoke lyric video and share it. CREATE A SONG WITH AI • Text to song: describe an idea, a feeling or a story, then tap Generate Song • Surprise Me: let the AI pick the topic, style and settings • AI lyric generator: write lyrics from an idea, including rap lyrics • Optimize Lyrics: turn rough words into a song-ready verse and chorus • Choose genres and moods, or describe the sound you imagine • Advanced options: male, female or duet vocals, vocal delivery speed, tempo (BPM), time signature, and a reference or singer • Make a song in minutes, in 17 languages LYRIC VIDEO MAKER • Your song and its lyrics load into the editor automatically, timed line by line • Karaoke lyrics that fill in as the song plays • Ready-made layouts: Poster, Reel, Karaoke, Center Stage, Wave Top, Wave Side, Cover Bottom, Circle Cover and Lyrics Only • Vertical, square or horizontal video • Export in low, standard or high quality and share STYLE YOUR VIDEO • Backgrounds: colour, gradient, your own pictures or the song cover with blur and card • Fonts and weights with glow, box, shadow and outline in any colour • Lyric animations: fade up, zoom, blur, slide in, typewriter, word by word, flip, spread and drop • Moving waveform as bars, a line or a circle, plus a progress bar • Song cover inside a circle, heart, star, hexagon, triangle or diamond • Add text, pictures, shapes, icons and smileys, then drag, pinch and twist • Layers panel to reorder, hide or lock anything TIMELINE EDITOR • Trim, move and zoom with magnet snapping • Edit every lyric line, add a line or remove one • Add more sounds from your library or your device and mix them • Undo, redo and save your own layouts YOUR SONG LIBRARY • Every song is saved with its lyrics and style • Play, rename, download and share, or copy the lyrics and style to reuse them SONGS FOR EVERY MOMENT Love songs, birthday songs, lullabies, rap, pop, rock, folk and devotional music. Make a song for a friend, a video or just for fun. AVAILABLE IN 17 LANGUAGES English, Arabic, Czech, German, Spanish, French, Hindi, Hungarian, Italian, Japanese, Korean, Dutch, Polish, Portuguese, Russian, Turkish and Urdu. Sign in with email, Google, Facebook or Apple. Create the song. Style the video. Share it. Download SynPlex AI and make your first song today.

Screenshots

Memokeys4 screens
SynPlex AI Lyrics & Song Maker4 screens

Verdict

The call

The clearest difference is in-app purchases: SynPlex AI Lyrics & Song Maker at none against Memokeys's 1. SynPlex AI Lyrics & Song Maker also leads on update cadence (monthly vs every 3 months). On price, ads, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Memokeys sells 1 one-off in-app purchase. SynPlex AI Lyrics & Song Maker asks for nothing beyond the download.

UpkeepUpdate frequency

Memokeys ships an update every 3 months, SynPlex AI Lyrics & Song Maker monthly. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 7 level
Memokeys versus SynPlex AI Lyrics & Song Maker: the parameters behind the verdict, then further details
ParameterMemokeysSynPlex AI Lyrics & Song Maker
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size5 MB63 MB
Age rating4+12+
DeveloperSerge KotovMichael Haisha

In-app purchases

1 purchases

Memokeys

One-time1
  • Unlimited count of keys$1.99
None

SynPlex AI Lyrics & Song Maker

No in-app purchases

Questions

Is Memokeys free?
Memokeys is free to download, with in-app purchases available.
Is SynPlex AI Lyrics & Song Maker free?
SynPlex AI Lyrics & Song Maker is free to download, with no in-app purchases.
Do Memokeys or SynPlex AI Lyrics & Song Maker have ads?
Neither Memokeys nor SynPlex AI Lyrics & Song Maker shows ads.
Which is updated more often, Memokeys or SynPlex AI Lyrics & Song Maker?
Memokeys ships an update every 3 months, and SynPlex AI Lyrics & Song Maker monthly. Most recently, Memokeys was updated on November 7, 2026 and SynPlex AI Lyrics & Song Maker on November 8, 2026.

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