AMB vs Devils Turntable
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AMB
This mobile application offers a simplified approach to FM synthesis, allowing users to create a variety of sounds, from crystalline textures to sharp basslines, directly on their device. It's designed for on-the-go sound design and musical exploration.
- Simplified FM synthesis
- Pocket-sized design
- Sound shaping
- Crystalline sound creation
- Noisy texture generation
- Sharp bassline creation
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AMB-R is a simplified and alternate take on FM synthesis that fits snugly in your pocket. Shape crystalline sounds, noisy textures, or sharp basslines anytime and anywhere.
Devils Turntable
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WHAT DOES THAT SOUND LIKE BACKWARDS? For about thirty years people were convinced that rock and metal records had messages hidden inside them. Play the album in reverse and the devil speaks. It was nonsense, but it was very fun. Devils Turntable is a pocket-sized backmasking machine. Load a sound, hit SATANIZE, and hear it play in reverse while fire and smoke crawl up the face of the deck. HOW IT WORKS Record straight into the app with your microphone. Or import an audio file. Or drop in a video and the app pulls the audio right out of it. Then flip it. The record slows to a dead halt like you dragged your hand across the platter, then spins back up the other way. THE CONTROLS - SATANIZE — flips playback backward, then forward again - SPEED — bends pitch exactly like a real turntable. Slow it to a crawl or run it fast and chipmunked. - FIRE and SMOKE — two knobs that crank the atmosphere on the deck itself WHAT PEOPLE ACTUALLY USE IT FOR - Settling arguments. "That melody is just Happy Birthday backwards." Prove it in ten seconds. - Learning to speak backwards, which is a genuinely useful and genuinely stupid party skill. - Guitarists checking a reversed solo before they commit it to tape. - Testing your own voice memos for accidental demonic content. - Being the person at the party who says "wait — listen to this." HONEST ABOUT WHAT IT ISN'T This is a listening tool. It plays audio backwards. It does not export, edit, or save reversed files. If you need a reversed stem for a track, open your DAW like an adult. Devils Turntable is for checking, learning, and goofing off, and it does that faster than anything else on your phone. PRIVACY Nothing leaves your phone. No account, no analytics, no tracking, no ads, no data collection of any kind. Your recordings are yours and they stay on your device. No actual demons or poltergeists were summoned during the making of this app.
Screenshots
Verdict
AMB and Devils Turntable are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | AMB | Devils Turntable |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 35 MB |
| Age rating | 4+ | 9+ |
| Developer | Jan Strahlberg | Scott Hsiung |
In-app purchases
AMB
No in-app purchases
Devils Turntable
No in-app purchases









