Percussions vs strng
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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"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.
strng
This app generates plucked string sounds using a physical modeling synthesis engine. It offers polyphonic voices, a built-in keyboard, and MIDI control. Shape your sound with delay and resonant filters, and integrate with other music apps.
- Physical modeling string synthesis
- 16 voice polyphony
- Built-in 25-key keyboard with aftertouch
- MIDI controller support (USB/Wi-Fi)
- Stereo ping-pong delay
- Two-channel resonant filter with LFOs
- Audiobus, IAA, and AUv3 support
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Strng is a string synthesiser inspired by the karplus-strong algorithm. The physical modelling starts with a short burst of noise that then guided by a tuned delay buffer and string tension filter, generates plucked string like sounds. No samples are used. Strng is 16 voice polyphonic and can be controlled with an in app 25 key chromatic keyboard or connect prefered midi controller through USB or Wifi. To further shape the sound two post effects are available, a ping-pong stereo delay and two channel resonant filter controlled by two LFOs. Connect to other apps through AudioBus, inter app audio or load in DAWs as AUv3. +++ String synthesis engine +++ 16 voice polyphonic +++ Audiobus, IAA and AUv3 +++ Core MIDI, bluetooth midi and limited MPE +++ 25 multitouch keyboard with aftertouch control +++ Factory presets, save and load your own settings, drag'n drop from files app +++ Aftertouch modulation for attack, sustain, bit crush, resonant filter and detune lfo +++ Stereo ping-pong delay +++ Two channel resonant low pass filter LFOs
Screenshots
Verdict
The clearest difference is review sentiment: strng at 84% against Percussions's 23%. strng also leads on rating (4.7 vs 3.0) and update cadence (every 4 months vs every 17 months). Percussions's advantage is chart position (#172 vs unranked) and price ($2.99 vs $4.99). On ads, in-app purchases, monetization model 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
Percussions costs $2.99 and strng $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
strng holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: strng has 35 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 23% of Percussions's written reviews are positive against 84% of strng's.
Percussions ships an update every 17 months, strng every 4 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | Percussions | strng |
|---|---|---|
| Price | $2.99 — better | $4.99 |
| Rating | 3.0 (3 ratings) | 4.7 (35 ratings) — better |
| Positive reviews | 22.7% of reviews | 84.4% of reviews — better |
| Number of ratings | 3 | 35 — better |
| Update frequency | Every 17 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #172 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | CRIMSON TECHNOLOGY, Inc | Erik Sigth |
Customer experience
Percussions
strng
In-app purchases
Percussions
No in-app purchases
strng
No in-app purchases









