DoomLoop vs Bitbop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DoomLoop
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DOOM LOOP is a stem-based loop machine built from the Doom Cougar catalog. Seven channels — kick, bass, snare, hats, acid, perc, and FX — each loaded with eight loops pulled from real Doom Cougar tracks. Tap a pad to bring that loop in. Tap another to swap it out on the next bar. Everything stays at 138 BPM. Everything stays in time. There is no beat-matching, no syncing, no waveforms to wrestle with. The tempo is fixed. The bars are fixed. The loops swap clean. WHAT'S IN IT - 56 loops from the Doom Cougar catalog — Crease, Creature, Hematoma, Mothers Milk, Parlor Floor, Savage Wit, Shag Chain, Yule, and more - 7 channels — one loop at a time per channel, plus a one-shot FX channel for stabs and vocal hits - 138 BPM master tempo with every stem pitched to match - 3-band EQ on every channel — low, mid, high - Independent volume on every channel - Per-channel lock — protect a loop you like before randomizing - Random — roll the dice on every unlocked channel, queued to the next bar - Bar / beat indicator with 4-LED beat readout HOW IT WORKS Tap a pad to load that loop. If a channel is already playing, the new pick is queued — it swaps in clean on the next downbeat. No bumps. No dropouts. No drift. Lock the channels you want to keep. Randomize the rest. Walk a track from a stripped-down kick-and-acid groove into a full mix and back without touching the play button. This is Doom Cougar's catalog, taken apart and handed back to you. Build new tracks. Wreck old ones. Nothing here gets out of time. 138 BPM. 7 channels. 56 stems. One bar at a time.
Bitbop
Create music with a pocket instrument where every pad is in key. Explore over 1,000 songs across various genres, customize sounds with five unique synthesizer worlds, and visualize your music with full-screen graphics. Share your creations as video, audio, or links.
- Pocket instrument with in-key pads
- 1,000+ song templates across genres
- Five distinct synthesizer sound worlds
- Full-screen music visualizations
- Export audio, MIDI, and video
- Real-time collaborative jamming
- Offline functionality
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Bitbop is a pocket instrument for making music. Every pad is in key, so you can't play a wrong note, and a full band plays along: lead, bass, bells and drums. START FROM 1,000+ SONGS Techno, house, trance, drum and bass, synthwave, lo-fi, hip-hop, disco, afrobeat, latin, raga, classical, folk and Bitbop originals. Load one, change anything, make it yours. Or tap Surprise me and start from a new idea. FIVE SOUND WORLDS Each one is its own synthesizer: - Bitbop: the signature chiptune sound, a PWM lead and a chip supersaw - Techno: a resonant lead, a clean sub and a driven kit - Retro: a pulse melody, square chimes and a smooth triangle bass - Classical: bowed strings and a plucked harp in a concert hall - Dancehall: a syncopated sub, a skank chop and a steppers riddim SOUND YOU CAN SEE 100 full-screen visuals that follow every note you hear. SHARE WHAT YOU MAKE - Export a video for stories and feeds, with the visuals you see - Export WAV audio or MIDI for any music app - Share a song as a link or QR code - Go Live: friends watch your jam in real time from a link, no app needed PLAY YOUR WAY - Tempo from 65 to 250 BPM, a vibe filter and a feel control for swing - Loops from 8 steps up to 10 bars, with a fader for lead, bass, bells and drums - Undo, erase, copy and paste, and lock a control between songs NO ADS. NO ACCOUNTS. Bitbop works offline and your songs stay on your device. Only anonymous usage counts are sent, and you can turn them off in Settings.
Screenshots
Verdict
The clearest difference is device support: DoomLoop at 3 against Bitbop's 1. DoomLoop also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DoomLoop ships an update every 6 days, Bitbop weekly. Both last shipped on October 31, 2026.
| Parameter | DoomLoop | Bitbop |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | Ryan Ebner | Franz Enzenhofer |
In-app purchases
DoomLoop
No in-app purchases
Bitbop
No in-app purchases






