Comparison

DoomLoop vs Bitbop

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

Head to head
About

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.

About

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.

Highlights
  • 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
Features
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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

DoomLoop4 screens
Bitbop4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DoomLoop ships an update every 6 days, Bitbop weekly. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
DoomLoop versus Bitbop: the parameters behind the verdict, then further details
ParameterDoomLoopBitbop
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size4 MB3 MB
Age rating17+4+
DeveloperRyan EbnerFranz Enzenhofer

In-app purchases

None

DoomLoop

No in-app purchases

None

Bitbop

No in-app purchases

Questions

Is DoomLoop free?
DoomLoop is free to download, with no in-app purchases.
Is Bitbop free?
Bitbop is free to download, with no in-app purchases.
Do DoomLoop or Bitbop have ads?
Neither DoomLoop nor Bitbop shows ads.
Which is updated more often, DoomLoop or Bitbop?
DoomLoop ships an update every 6 days, and Bitbop weekly. Most recently, DoomLoop was updated on October 31, 2026 and Bitbop on October 31, 2026.

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