iAmDrums vs Mossca Player
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iAmDrums
Create and play drum beats anytime, anywhere with a variety of drum kits. Features a loop maker for sequencing custom grooves and realistic drum feel with velocity and expression controls.
- Loop Maker Mode
- Create and sequence custom grooves
- Save grooves to KickStart library
- 20 diverse drum kits
- Velocity and expression controls
- Realistic drum feel
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It actually lets you play the drums. Not watch ads. iAmDrums is a real-feeling drum kit for iPhone and iPad. Open it and play: no ads, no subscription, no account, nothing else to buy. One price unlocks all 20 kits and every feature. SOUNDS LIKE REAL DRUMS Every kit responds to where you hit it: • Hit closer to the center for a louder beat, further out for a softer one • Hit the snare on the edge for a rim shot • Hit the center of the ride to ring the bell • Hit the center of the hi-hat for a pedal mute 20 KITS, ALL INCLUDED • Rock & band: Rock, Acoustic, Punk, Rage, Rebel, Radio, Blue • Electronic: House, Rave, Lo-Fi, Minimal, Trip Hop, 808, Analog, Industrial, Dub Step • Something different: Stomp, Orchestral, BeatBox, DrumCircle DRUMS IN YOUR POCKET For everyone who drums on everything: desks, knees, steering wheels. Long commute, time to kill, or a great beat just came on? Drum out the rhythms in your head, anywhere. MAKE YOUR OWN GROOVES Program a groove in Loop Maker, save it to your KickStart library, and play it back on any kit. PAY ONCE. NO ADS. NO TRACKING. No ads, ever. No subscription. No sign-in. We don't collect any data. Buy it once and it's yours. Tip: for the full punch of the kick and toms, play with headphones or external speakers.
Mossca Player
This HiFi music player offers advanced audio processing, including real-time 32-bit floating-point processing and HQ SRC resampling. It supports native DSD playback, external USB DACs, and extensive headphone tuning with parametric EQ and Crossfeed.
- HiFi audio engine with 32-bit processing
- Native DSD playback
- External USB DAC support
- Headphone frequency response correction
- Parametric EQ and Crossfeed
- Support for personal music servers
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Mossca — HiFi Hi-Res Music Player Mossca is a high-resolution music player powered by its own HiFi audio engine. Featuring real-time 32-bit floating-point audio processing and HQ SRC resampling with double-precision internal calculations, it supports native DSD playback, real-time PCM-to-DSD modulation, and external USB DAC output. It also offers headphone frequency response correction, parametric EQ, Crossfeed, and a range of DSP audio processing features. Designed for audiophiles, headphone enthusiasts, and anyone who appreciates better sound. Hi-Res Audio & DAC Support • Mossca HiFi Audio Engine: Proprietary audio engine with real-time 32-bit floating-point processing, handling audio decoding coordination, resampling, and DSP processing • High-Quality Resampling (HQ SRC): Double-precision internal calculations with support for multi-rate upsampling and high-sample-rate output • Native DSD Playback: Supports DSF and DFF formats, including DoP (DSD over PCM) transmission • Real-Time PCM-to-DSD Modulation: Converts PCM audio to DSD64–DSD256 in real time for output through compatible external USB DACs • DSD-to-PCM Conversion: Uses FIR filtering to process DSD audio for playback through PCM output devices • USB DAC Output: Supports device sample rate negotiation and high-resolution audio playback • Signal Path: Displays the source format, audio processing stages, and actual output format Headphone Tuning & DSP Effects • Headphone Frequency Response Correction: Covers 6,330 headphone models with over 14,000 AutoEQ / OPRA tuning profiles • Target Curves & Frequency Band Adjustment: Supports multiple target curves and headphone compensation, with independent bass, midrange, and treble adjustments • Real-Time Headphone Tuning: Adjust parameters during playback, view frequency response curves, and compare settings with A/B listening • Parametric Equalizer (PEQ): Adjust frequency, gain, and Q factor, with support for importing custom configurations • Crossfeed Headphone Soundstage: Simulates natural crossfeed between left and right channels to improve stereo imaging when listening through headphones • Auto Headroom: Helps reduce the risk of digital clipping caused by EQ gain adjustments • Tape Sound: Recreates the warmth and sonic character of analog tape, with adjustable effect intensity • Real-Time DSP Processing: Adjust sound characteristics and processing parameters while music is playing Music Sources & Servers • Local Music Library: Import, scan, index, and manage local music files • Mossca Server: A free music server designed for personal music collections, featuring library indexing, album and artist management, and remote streaming. Free to deploy and use • Navidrome / Subsonic: Supports Navidrome, Subsonic, and OpenSubsonic-compatible music servers • Jellyfin / Emby / Plex: Connect to popular personal media servers to access and play your music collection • SMB / WebDAV: Network file access and offline downloads • iOS Files App: Add individual music files or entire folders directly to your library through the Files app without making additional copies • Mac Library Sync: One-tap full music library synchronization with Mossca for Mac • Remote Streaming: Stream music from personal servers over local networks or the internet • Streaming Transcoding Settings: Configure transcoding formats and bitrates based on server capabilities and network conditions • Offline Music: Download music from remote servers for playback without an internet connection A Simpler Music Player: SirenX If you don’t need advanced HiFi audio settings or an external USB DAC, and simply want a fast, straightforward way to enjoy your personal music collection, try our other music player: SirenX — A Minimalist Player for Local & Self-Hosted Lossless Music Simple, fast, completely free, no account required, and no ads. Contact: mynameisfung@gmail.com
Screenshots
Verdict
The clearest difference is price: iAmDrums at $3.99 against Mossca Player's $14.99. iAmDrums also leads on rating (4.9 vs 3.0) and ratings volume (15 vs 2). Mossca Player's advantage is in-app purchases (none vs 1) and update cadence (every 10 days vs every 3 months). On 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
iAmDrums costs $3.99 and Mossca Player $14.99 up front. iAmDrums sells 1 one-off in-app purchase. Mossca Player asks for nothing beyond the download.
iAmDrums holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: iAmDrums has 15 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 58% of iAmDrums's written reviews are positive against 88% of Mossca Player's, so the app with the better star average is not the one people write more warmly about.
iAmDrums ships an update every 3 months, Mossca Player every 10 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | iAmDrums | Mossca Player |
|---|---|---|
| Price | $3.99 — better | $14.99 |
| Rating | 4.9 (15 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 58.0% of reviews | 87.5% of reviews — better |
| Number of ratings | 15 — better | 2 |
| Update frequency | Every 3 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 50 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Rubotic, Inc. | 明星 张 |
Customer experience
iAmDrums
Mossca Player
Bugs and requests
iAmDrums
Reported bugs
13 issues- Trip Hop drum kit invisible but audio plays
- Drums not loading on download
- Black screen on iPhone 11 Pro
- Restore purchases button non-functional
- Purchased kits becoming locked after update
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- App crashes when selecting demo
- High hat making different noises during recording
- Latency/slow response time
- No sound output on certain devices
- App crashes when overwriting loops
- Incompatibility with iOS 6 and older devices
- Sequencer panel missing play button
- Double-kick and drum roll functionality broken
Requested features
15 requests- Left-handed drum kit option
- Extended bar/measure support (beyond 32 steps)
- Higher BPM limit (above 160)
- Additional cymbal types (China, Stack, Splash)
- Custom drum kit creation
Show 10 moreShow fewer
- More drum kit styles (metal, trap, EDM, techno)
- Double-tap drum roll support
- Adjustable drum kit layout
- Volume mixing in play mode
- Record mode without continuous playback
- Audio export functionality (.wav, AudioBus, IAA, MIDI support)
- Time signature customization (3/4 time, etc.)
- Start/stop/pause controls
- Ability to move drum sections for finger play
- Multiple sequence playback in succession
Mossca Player
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iAmDrums
- Unlock All Kits$0.99
Mossca Player
No in-app purchases







