Comparison

AmpGate vs 1981 FM

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

Head to head
About

AmpGate

This app provides a real-time amplifier simulator for mobile devices, featuring exact digital captures of real amplifiers and full rigs. It allows users to browse and audition a vast library of tones, load custom impulse responses, and import their own captures. It also functions as an AUv3 plugin for use in music production hosts.

Highlights
  • Real-time amp simulation
  • Vast tone library access
  • Cabinet section with IR loader
  • Noise gate and gain controls
  • Low-latency processing
  • AUv3 plugin compatibility
Features
Read full description

Every amp ever, in your pocket. AmpGate is a Neural Amp Modeler (NAM) player for iPhone and iPad: a real-time amp sim that plays exact digital captures of real amplifiers and full rigs, including the new Architecture 2 (A2) models, the most accurate generation of neural captures yet. BROWSE HUNDREDS OF THOUSANDS OF TONES Connect your free TONE3000 account and the world's largest tone library opens right inside the app. Search by amp, gear or genre, audition any capture through your own guitar before saving it, and build your collection with one tap. - NAM engine with A2 model support - Cabinet section with impulse response loader, browse TONE3000 IRs or import your own WAV files - Tone stack (bass / mid / treble), noise gate, input and output gain - Low-latency processing tuned for live playing - Import your own .nam captures from the Files app AUv3 PLUGIN INCLUDED Load AmpGate inside GarageBand, Logic Pro, AUM, Loopy Pro, Cubasis and any other AUv3 host. The app and the plugin share one library: save a tone and it's already in your session. Neural Amp Modeler is an open-source project by Steven Atkinson. TONE3000 is a free third-party service; an account is optional.

About

1981 FM

This app generates complete, unique musical tracks using chaotic mathematical principles. It offers various styles, modes, and keys, with customizable FM synth sounds and effects. Tracks can be recreated using seeds and exported via MIDI.

Highlights
  • Chaos-driven track generation
  • Four-operator FM synth engine
  • Multiple musical styles and modes
  • MIDI export and input
  • Customizable effects (chorus, delay, reverb)
  • Offline functionality
Features
Read full description

1981 FM writes complete tracks. Press generate and you get 64 bars with an intro, verses, choruses, a break and an outro, played by a four-operator FM synth. Lead, bass, arp, pad and a drum machine, through chorus, delay and reverb. Nothing is sampled. Every note is made on the fly and no two tracks come out the same. The music comes from chaos maths. A Lorenz attractor shapes the melody, rhythm and mood. A Hénon map keeps the arpeggio moving. A logistic map handles the drum fills: turn it down and they repeat every bar, turn it up and they never do. Chaos on its own is noise, so a small model filters it. It gets rewarded for consonant intervals and practises over the chord changes before it writes anything. The CHAOS / POLICY slider decides how much say each one gets. Ten styles, and they are properly different. Funk plays a 16th-note slap line with ghost notes between the backbeats. Bebop walks the bass and puts the ride in charge of the time. Bossa runs a clave. Space strips the kit back to a pulse. Every track is built from its seed. Write the seed down and you can have that exact track again, note for note, whenever you want it. You can play over it, too. The pads are the notes of the song's key rather than a piano keyboard, so nothing you touch is wrong, and the sixteen-step lane runs in time with the song and follows your host. Both play any part you like: lead, bass, arp or pad, through that part's sound and out on its MIDI channel. Choose which sections the lane plays in - just the choruses, say - and preview it on its own without starting the song. Turn on RADIO and it keeps playing, picking a new key, mode, style and tempo for each track. You also get: • 10 styles, 6 modes, 12 keys, tempo and density • Four-operator FM engine, 6 algorithms, 11 presets, random patch • Five-part mixer, chorus, delay, plate reverb and filter • A PLAY panel: pads in the song's own key, and a 16-step lane running in time with the song and only in the sections you pick • MIDI in, so your keyboard plays whichever part you have selected • MIDI export: five tracks, one per part • Live spectrum, waveform and a view of the chaos engine at work Two Audio Units, an instrument and a MIDI processor. Each part sends on its own MIDI channel, drums on 10, so one instance can drive five instruments. The MIDI version passes your keyboard through instead of swallowing it. Both follow your host's tempo and transport. One install registers both. The app is free and nothing in it is held back. Using the Audio Units inside other apps is a one-time purchase, and each AUv3 session plays for two minutes first so you can try them properly. No account, no ads, no subscription. Works offline.

Screenshots

AmpGate3 screens
1981 FM4 screens

Verdict

The call

The clearest difference is review sentiment: 1981 FM at 100% against AmpGate's 0%. 1981 FM also leads on rating (5.0 vs 1.0) and ratings volume (3 vs 1). AmpGate's advantage is in-app purchases (none vs 1). On price, update cadence, ads and device support 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. 1981 FM sells 1 one-off in-app purchase. AmpGate asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

1981 FM holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 0% of AmpGate's written reviews are positive against 100% of 1981 FM's.

UpkeepUpdate frequency

AmpGate ships an update every 3 weeks, 1981 FM every 2 weeks. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
AmpGate versus 1981 FM: the parameters behind the verdict, then further details
ParameterAmpGate1981 FM
PriceFreeFree
Rating1.0 (1 ratings)5.0 (3 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings13 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size7 MB15 MB
Age rating4+4+
DeveloperMATTEO DEMETRIO ZANARDISoft Brew Mobile

Customer experience

AmpGate

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

1981 FM

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AmpGate

No in-app purchases

1 purchases

1981 FM

One-time1
  • AUv3 Unlock$2.99

Questions

Is AmpGate free?
AmpGate is free to download, with no in-app purchases.
Is 1981 FM free?
1981 FM is free to download, with in-app purchases available.
Which has better reviews, AmpGate or 1981 FM?
1981 FM is rated higher. AmpGate averages 1.0 out of 5 from 1 ratings, while 1981 FM averages 5.0 from 3 ratings.
Do AmpGate or 1981 FM have ads?
Neither AmpGate nor 1981 FM shows ads.
Which is updated more often, AmpGate or 1981 FM?
AmpGate ships an update every 3 weeks, and 1981 FM every 2 weeks. Most recently, AmpGate was updated on October 9, 2026 and 1981 FM on October 24, 2026.

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