Comparison

Percussions vs SpellSynth

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

Head to head
About

Percussions

This app provides a virtual percussion instrument experience with 18 high-quality sounds. Play instruments by tapping, shaking, or rolling your device, and customize your setup for quick access. Integrate your music library to play along with your favorite tunes.

Highlights
  • 18 virtual percussion instruments
  • Multiple playing methods (tap, shake, roll)
  • Customizable tab bar for quick instrument switching
  • iPod music playback integration
  • Low latency and high-quality sound
  • Reverb effect
Currently charting
Read full description

"Percussions" is, as its name suggests, a new virtual musical instrument application which offers the performance of 18 kinds of percussion instruments in high sound quality. As well as actual percussion instruments, everyone can play each sound by various methods as follows: Tapping the screen, shaking the device, rolling the device, ... Moreover, favorite percussion instruments can be allocated to tabs in the tab bar and switched instantaneously. Also you can play percussion part of your favorite tunes with iPod music playback. A lot of unusual percussion instruments without seeing are included in this application. But those sounds might have been heard many times. Let's liven up your music party by the sound of this application. [Features] -Including 18 percussion instruments Agogo, Bell Tree, Bongo, Castanet, Claves, Conga, Cowbell, Cuica, Guiro, Maracas, Matraca, Scratch (Turn Table), Shaker, Tambourine, Timbales, Triangle, Vibraslap, Wood Block -Various perform methods in answer to actual instrument Tapping the screen: Bongo, Castanet, etc. Rubbing the screen: Guiro, Cuica, Scratch, Matraca, etc. Pressing down the screen (for playing muted sound): Conga (High), Triangle, etc. Swinging the device downward: Cowbell, Timbales, etc. Shaking the device: Shaker, Maracas, etc. -Low latency and real output sound by internal software synthesizer Reverb effect Note; Please set animation off on the setting view when feeling that the response is not quick because of the model etc.

About

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.

Highlights
  • 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
Features
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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

Percussions4 screens
SpellSynth4 screens

Verdict

The call

The clearest difference is update cadence: SpellSynth at every 6 days against Percussions's every 17 months. SpellSynth also leads on review sentiment (50% vs 23%) and rating (3.2 vs 3.0). Percussions's advantage is chart position (#172 vs unranked) and iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and monetization model 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

Percussions costs $2.99 and SpellSynth $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SpellSynth holds the better App Store score, 3.2 against 3.0. Both are backed by a comparable volume of ratings — 3 and 11 respectively. Written reviews point the same way: 23% of Percussions's written reviews are positive against 50% of SpellSynth's.

UpkeepUpdate frequency

Percussions ships an update every 17 months, SpellSynth every 6 days. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 5 level
Percussions versus SpellSynth: the parameters behind the verdict, then further details
ParameterPercussionsSpellSynth
Price$2.99$2.99
Rating3.0 (3 ratings)3.2 (11 ratings) — better
Positive reviews22.7% of reviews50.0% of reviews — better
Number of ratings311 — better
Update frequencyEvery 17 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#172 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size4 MB112 MB
Age rating4+4+
DeveloperCRIMSON TECHNOLOGY, IncChih Han Lin

Customer experience

Percussions

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews22 reviews
Positive22.7%
Neutral9.1%
Negative68.2%

SpellSynth

All ratings11 ratings
Positive54.5%
Neutral0.0%
Negative45.5%
Written reviews12 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Percussions

No in-app purchases

None

SpellSynth

No in-app purchases

Questions

Is Percussions free?
Percussions costs $2.99, with no in-app purchases.
Is SpellSynth free?
SpellSynth costs $2.99, with no in-app purchases.
Which has better reviews, Percussions or SpellSynth?
SpellSynth is rated higher. Percussions averages 3.0 out of 5 from 3 ratings, while SpellSynth averages 3.2 from 11 ratings.
Do Percussions or SpellSynth have ads?
Neither Percussions nor SpellSynth shows ads.
Which is updated more often, Percussions or SpellSynth?
Percussions ships an update every 17 months, and SpellSynth every 6 days. Most recently, Percussions was updated on October 9, 2026 and SpellSynth on October 14, 2026.

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