DJScratch vs SpellSynth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DJScratch
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レコードに触れた瞬間、気持ちよさが走る—— DJScratchは「スクラッチの気持ちよさ」だけを追求したアプリです。 複雑な操作は一切不要。指でレコードをぐるっと回すだけで、本格的なDJスクラッチサウンドを楽しめます。 ■ こんな人におすすめ ・DJに憧れているけど機材は高くて手が出ない ・音楽が好きで、何か面白いアプリを探している ・暇つぶしに最高に気持ちいい体験がしたい ■ 特徴 【リアルなスクラッチ操作】 レコードの上で指を動かすと、速さに応じてサウンドがリアルタイムに変化。 前後どちらにも回せて、止めた瞬間にまた流れ出す。本物のターンテーブルの感覚に限りなく近い操作感を再現しました。 【25トラック内蔵】 Hip-Hop・House・Funk・Trap・Reggae の5ジャンル × 各5トラック = 計25曲を収録。 すべてロイヤリティフリーの本格ループ音源です。 【自分の音楽でスクラッチ】 手持ちの音楽ファイルを読み込んで、好きな曲でスクラッチ可能。 ファイルアプリから直接選択できます。 【シンプルなUI】 余計な機能を一切省いたすっきりしたデザイン。起動したらすぐ遊べます。 --- 本アプリはAdMobによるバナー広告を表示します。
SpellSynth
This app recreates a classic 1978 spelling toy with four engaging game modes. It allows users to type any word or phrase and hear it spoken aloud using vintage synthesized voices. Explore different speech synthesis eras and even play the keypad with a MIDI keyboard.
- Type and hear any word spoken
- Four game modes (Free Play, Spell, Mystery Word, Say It)
- Three distinct vintage voice characters
- MIDI keyboard support
- Export audio to WAV
- Adjustable gap between words
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SpellSynth is a playable love-letter to the 1978 spelling toy that taught a generation to read — rebuilt for iPhone, iPad, and Mac, in English and French, with five modes, a crunchy VFD display, and three vintage voice characters across two decades of speech-synthesis history. Tap a letter and it speaks. Type ANY word — your name, this week's vocabulary list — and SpellSynth speaks it back. EVERY WORD SPEAKS The 500+ bundled words across 20+ themes use a hand-recorded retro voice. Anything else — a name, your kid's spelling list — falls back to the system engine through your chosen voice, cached so the second tap is instant. • FREE PLAY — type any word, a whole phrase, or a number and hear it spoken. Tap SPACE to build a sentence; it's read back word by word as the VFD cycles. Numbers ("2" becomes "two") and contractions ("don't") speak too. A GAP control tunes the pause between words (50–500 ms), and a RECENT row keeps this session. • SEQ — a 16-step sequencer that speaks a word per step, locked to your tempo. Type four words, get a robot vocal loop. Put a single letter on a step and it says the letter name on the beat instead. FIT stretches each word to fill its step, so words pitch up as the tempo climbs. • SPELL — SpellSynth says a word. You spell it. Three mistakes and you get the answer, then try a new one. HINT reveals a letter when you're stuck. • MYSTERY WORD — the classic hidden-word game. You get the category and first letter free; pick letters until it reveals itself. Six wrong guesses ends it. • SAY IT — listen-and-repeat practice. SpellSynth spells the word letter by letter, then says it whole. REPEAT to hear it again, NEXT for a new one. • SHARE — render any word or phrase to a WAV and send it to Files, AirDrop, or your DAW. EN FRANÇAIS Pick Français in Settings and SpellSynth speaks French: 360+ words, French game screens and an apostrophe key, after the 1981 French edition. The AUv3 speaks French too. THREE VINTAGE VOICES Pick a voice character in Settings. Each one draws from a different era of speech-synthesis history, applied to every word you hear: • 1968 ODYSSEY — calm, deep-baritone monotone with a deliberately slow cadence. Aesthetic homage to the late-60s sci-fi AI voices. • 1978 LPC — the original Speak & Spell character. A 10-pole LPC vocoder driven by the actual TMS5220 chirp ROM, the same speech algorithm Texas Instruments shipped in the toy. Buzzy, granular, unmistakable. • 1986 DECTALK STYLE — fixed-pitch impulse train through formants extracted from your input. Modelled on the Klatt-style synthesis that defined Hawking's iconic computer voice. Deliberate, monotone, emphatically computery. • DEFAULT — clean system speech, no extra processing, for when you just want clear pronunciation. PLAY WITH A MIDI KEYBOARD Connect a USB, Bluetooth, or Network MIDI keyboard and the keypad plays from real keys. MIDI notes 60–85 (C4–C#6) trigger letters A–Z. BUNDLED AUDIO UNIT (AUv3) SpellSynth ships an AUv3 instrument extension, so the same voice engine loads inside GarageBand, AUM, Loopy Pro, Cubasis, Logic Pro for iPad, and any AUv3 host on iPhone or iPad. Type a word and it speaks. Twenty-four parameters cover pitch, speed, bit-crush, sample-rate reduction, filter, envelope, LFO, stutter, the step sequencer, MIDI shaping, language, and voice character. Ten factory presets; all four voices play in your DAW. A serious MIDI surface for performers: sustain pedal (CC 64) for hold-and-release phrasing, Channel Pressure (aftertouch) routable to any parameter, three velocity curves (Soft / Linear / Hard), a pitch-bend range from ±0 to ±12 semitones, and 14 MIDI Learn targets covering every performance knob — bound CCs ride along with the preset. Stutter locks to the host tempo (1/4, 1/8, 1/16), and a Letter Map mode maps A–Z onto MIDI notes 60–85 so you can sequence spelling right in your DAW. Perfect for producers chasing that Kraftwerk / Stereolab / Broadcast sound.
Screenshots
Verdict
The clearest difference is price: DJScratch at Free against SpellSynth's $2.99. On ads, in-app purchases, 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
DJScratch is free to download; SpellSynth costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | DJScratch | SpellSynth |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | — | 3.2 (11 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 11 — better |
| Update frequency | — | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 18 MB | 112 MB |
| Age rating | 4+ | 4+ |
| Developer | hoshihira yukiya | Chih Han Lin |
In-app purchases
DJScratch
No in-app purchases
SpellSynth
No in-app purchases









