TunerBox vs DoomLoop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TunerBox
This app provides a straightforward and efficient way to tune stringed instruments like guitars, basses, and ukuleles. It offers automatic detection of common tunings and a manual mode for precise adjustments, loading instantly for immediate use.
- Instant loading tuner
- Supports common guitar tunings
- Manual tuning mode
- Works with bass and ukulele
- Simple and effective interface
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Simple, effective guitar tuner app for iPhone and iPad. Quick and easy - loads right into a tuner ready to go! Supports all common guitar tunings automatically and a manual mode! Also works with bass and ukulele!
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.
Screenshots
Verdict
The clearest difference is iOS requirement: DoomLoop at 15.0 against TunerBox's 26.0. 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.
TunerBox ships an update every 4 days, DoomLoop every 6 days. The most recent releases landed on October 15, 2026 and October 3, 2026 respectively.
| Parameter | TunerBox | DoomLoop |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days — better | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 17+ |
| Developer | Richard Stokes | Ryan Ebner |
In-app purchases
TunerBox
No in-app purchases
DoomLoop
No in-app purchases









