Progressions vs LoFiFx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Progressions
Generate unique chord progressions beyond traditional scales using mathematical algorithms. Control complexity and freedom to explore new harmonic territories. Features include arpeggiators, strumming patterns, and humanization for expressive musical output.
- Generate unique chord progressions
- Adjust complexity and freedom levels
- Block Chord, Arpeggiator, and Strummer modes
- Supports open and closed chords with selectable voicings
- Humanize chord and note timings
- Integrated ARP and STRUM pattern editor
- Sync multiple instances
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Progressions is an AUv3 MIDI plugin for your favourite DAW. It can be used to generate a unique set of chords that are unrelated to traditional scales, which become predictable and repetative over time. Instead, Progressions uses a unique way of mathermaically generating a series of related chords using only a root note and mode (major or minor). Chord sequences are limited by the selected complexity and freedom levels, which mimic the way traditional composers of old would wander away from tonality and back again. The complexity level start off at Basic, which uses only the most common chords (I, IV, V and relative minor ii, iii, and vi triads). As you progress through the levels, you can add parallel majors and minors, sus and dom chords etc. At level 3 we start to introduce 6th and 7th chords, and then 9ths chords, all the way to 11ths, 13ths, Quartals and all their variations. The freedom level allows us to specify how far to drift away from tonality (the root), even allowing you to create never ending randomized soundscapes. Progressions allows you to quickly randomize a toolbox of chords, that can be played in a variety of modes (block chords, arpeggiated, or strummed). These can be synced to a host application, triggered remotely or pieced together into a song. Song mode allow you to change play modes on the fly as well as being able to control many features of the app in real time. Progressions supports open and closed chords with selectable voicings. It has an intelligent algorithm that attempts to align top notes of chords, add additional bass, and open chord padding to give equal weight to chords with only 3 notes. You can even play with rootless voicings. The Humanize section allows you to control chord and note timings, as well as set velocity variations to ensure things don't get too robitic. Progressions also features an integrated arpeggiator and strummming pattern editor. You can load up to 6 arp and 6 strum patterns at the same time and seemlessly switch between them manually, remotely, or using song mode. If you run multiple instances, Progressions allows you to sync your chord pads, song chain, arpeggiator / strum patterns between instances. Progressions can be loaded as a MIDI plugin or as an Instrument for those programs that don't support MIDI plugins (such as GB). Additionally when loaded as an instrument, you can use either internal sounds (soundfonts) or send MIDI directly to other MIDI instruments. Features • Block Chord, Arpeggiator and Strummer modes. • Supports open and closed Chords. • Varying complexity levels of chords. • Freedom levels control how far from the root key you can go. • Rootless voicing mode. • Open chord padding support. • Additional bass note mode. • Supports all common chord types. • Edit the preferred chord list to exclude certain chord types. • Input MIDI control for chords and play modes. • Automatic top note alignment of chords. • Hold Pedal support. • Built in ARP and STRUM editor. • Humanize options for chord and note velocity and timings. • Comprehensive Song Mode with 256 steps and looping. • Randomize chord progressions, arps and strumming patterns. • Route Chord/Arp/Strum modes & MIDI thru to any of 4 output ports. • Supports soundfonts when loaded as an Instrument plugin. • Sync multiple instances of Progressions. • AUv3 compatible MIDI plugin supporting Sync to Host.
LoFiFx
This audio effect plugin offers a collection of tools designed to add warmth, stereo movement, and unique tonal characteristics to any sound. It features a diode-based clipper, independent stereo pitch modulation, randomized panning, vintage reverb, and versatile filtering options.
- Diode-based clipper for crunchy tones
- Independent stereo pitch modulation (Wobble)
- Randomized stereo panning (Sway)
- Vintage-flavored reverb with adjustable size and decay
- Low-pass and high-pass filters
- LFO for modulation effects
- Output stage clipper for limiting
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Lo-Fi Multi-Effects Plugin (AUv3) LoFiFx is an audio effect plugin that can run standalone, or in any AU compatible host application such as Logic or GarageBand. Overview LoFiFx is a collection of effects often used in the production of lo-fi music, although you might find it useful on just about any sound source. LoFiFx works particularly well on sounds that you may feel are a little dry or lifeless, by adding warmth, increased stereo spread and movement, and at times, unpredictable tonal changes. Parameters Active - Toggles the effect On or Off. Crunch - sends a variable amount of gain into a virtual diode-based clipper. Diodes are often used in simple guitar overdrive pedal circuits, and when pushed, produce an unrefined crunchy tone - hence the name. Wobble - applies a randomised rate and depth pitch modulation effect that can sound similar to a faulty tape recorder at higher settings. The LoFiFx wobble effect is different from most tape emulations as the left and right channels wobble independently. Sway - varies the amount of randomised panning. Similar to the Wobble effect, this does not occur at a set rate or depth, so it can be used to add a sense or unpredictable movement in the stereo field. Reverb - adds a bit of vintage-flavoured reverb to the mix. As the parameter is increased past half-way, the size and decay of the reverb also increase. A low-cut filter is also applied to the signal sent to the reverb which helps retain clarity on drum and bass sounds. LPF - sets the frequency of a lowpass / high-cut filter. HPF - sets the frequency of a highpass / low-cut filter. Note that the LPF and HPF frequencies overlap, so at some settings, you might find the overall output is being reduced significantly as the filters are in series. If you want to prevent this, make sure the LPF frequency is higher than the HPF / the HPF frequency is lower than the LPF. Basically what gets through the two filters depends on the size of the gap between the two frequency values so they can be combined to create a simple bandpass filter. LFO - sets the destination of a triangle waveform LFO. In addition to classic LPF / HPF sweeps, assigning the LFO to the Crunch parameter can create an interesting tremolo effect. Rate - sets the rate of the LFO. Depth - sets the depth of the LFO. Drift - introduces a variable amount of rate and depth modulation. Adding drift is a handy way of making the LFO cycle less obvious and predictable. LoFiFx has a built-in clipper at the output stage so can be used as a utility effect to brick-wall limit any incoming signal to 0dB. This isn't going to replace your favourite mastering plugin anytime soon and it gets very crunchy when pushed. If the name sounds familiar, LoFiFx is an original design based on the LOFIFX module developed for Voltage Modular by Waverley Instruments. For more info and support please visit: www.waverley-instruments.com/robjackson
Screenshots
Verdict
The clearest difference is price: LoFiFx at $1.99 against Progressions's $14.99. LoFiFx also leads on rating (5.0 vs 4.1) and update cadence (daily vs every 2 weeks). Progressions's advantage is ratings volume (34 vs 3) and chart position (#198 vs unranked). On ads, in-app purchases, monetization model 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
Progressions costs $14.99 and LoFiFx $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LoFiFx holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Progressions has 34 ratings behind it against 3, so its average is the more settled of the two.
Progressions ships an update every 2 weeks, LoFiFx daily. The most recent releases landed on September 21, 2026 and August 14, 2026 respectively.
| Parameter | Progressions | LoFiFx |
|---|---|---|
| Price | $14.99 | $1.99 — better |
| Rating | 4.1 (34 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 34 — better | 3 |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #198 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 117 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | 4Pockets.com | Rob Jackson |
Customer experience
Progressions
LoFiFx
In-app purchases
Progressions
No in-app purchases
LoFiFx
No in-app purchases









