AutoArp vs LE05
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AutoArp
This app transforms your device into a unique musical instrument, blending auto-harp and analog synth sounds. Select chords and strum to create retro-futuristic music. A free version offers basic functionality, with advanced features available via in-app purchase.
- Strummable synth interface
- Chord selection and configuration
- Square, pulse, and sawtooth waveforms
- Resonant low-pass filter
- Tremolo and echo effects
- Audiobus and inter-app audio support
- MIDI support (paid)
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AutoArp turns your iPhone (or iPod Touch) into a musical instrument that is halfway between a traditional auto-harp zither and an arpeggiated analogue-style synth. Select a chord and strum the "strings" with your fingers to create a retro-futuristic backing to your music. AutoArp is FREE, with a fixed set of songs. Full functionality, including creating, editing and sharing songs, MIDI support and transposing can be unlocked via an in-app purchase (at the lowest price tier). This means you can try it for free and hear the results for yourself! The synth engine features: • square, pulse and sawtooth waveforms, • attack and release envelope controls, • a resonant low pass filter with cutoff and resonance controls, • monophonic or polyphonic playback • tremolo effect with LFO frequency and depth • simple Echo effect Up to 16 chords (12 on iPhone 4s and below) can be selected per 'song' and configured onto the playing buttons, allowing you to switch quickly between songs to load a new set of chords. Alternative bass notes can also be set for each chord. There are 22 chord types, ranging from major and minor to jazz chords like minor 11th and major 7th with a sharp 11th! More Features: * Audiobus support for inter-app audio (even on iOS 6), so you can wire AutoArp up to loads of other great FX, mixing and recording apps * Improved audio engine, built using The Amazing Audio Engine (from A Tasty Pixel), with lower latency * MIDI support, including hardware CoreMIDI-compatible interfaces, inter-app MIDI and even network MIDI (paid version only) * Share songs with other AutoArp users via email (paid version only) * Transpose playback +/- 6 semitones to play in any key (paid version only)
LE05
Explore a vast collection of vintage synth sounds inspired by early 2000s digital music. This app offers over 1,000 samples and 60+ PCM sound sources, with over 100 presets for immediate inspiration. It functions as a standalone instrument or an AUv3 plugin for popular DAWs.
- Vintage digital synth sounds
- Over 1,000 individual samples
- 60+ multi-sampled PCM sound sources
- Over 100 inspiring presets
- Standalone and AUv3 modes
- AUv3 automation
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"Sounds Really Awesome!" - The Sound Test Room DIGITALISM 2000 is a new vintage synth module featuring exclusive sounds recorded from Digital Synths from the early 2000s. Retro and modern. These sounds were custom created for this app by the sound designers behind hit-making producers. Over 1,000+ individual samples were recorded from hardware synths and processed to perfection to make this expressive instrument for you! - Digital Synth Sounds: Pads, EPs, Synth, Bass, and more - Over 1,000+ individual samples custom recorded for this app - Over 60+ exclusive multi-sampled PCM sound sources - Compressed to under 180mb to save space - Over 100+ inspiring and creative presets - Easy-to-use controls - OUR BIGGEST LIMITED EDITION APP YET! - Universal: iPad & iPhone included - Standalone and AUv3 Modes Lightweight & powerful. Tweak the presets to make them your own. Run multiple instances of this AUv3 plugin effortlessly. FEATURES: - New powerful AUv3 code. Works great as an AU plugin in GarageBand, Cubasis 3, BM3, NS2, AUM, Auria Pro, and more - AUv3 Automation If you liked the sounds of Digital D1 & FM Player, this app builds on that and takes you on a journey to the next decade, from the 80s & 90s to the 2000s! REQUIREMENTS: Requires iPhone 6s size or above! (Will not work on 1st gen SE models) Will the apps still be updated? The apps will be updated for new iOS versions, to ensure that your limited edition apps continue to work as iOS technology progresses. Subscribe to access to premium app features; subscription details are the following: - Length: weekly or yearly - Free trial: only on selected subscriptions - Your payment will be charged to your iTunes Account as soon as you confirm your purchase - You can manage your subscriptions and turn off auto-renewal from your Account Settings after the purchase - Your subscription will renew automatically, unless you turn off auto-renew at least 24 hours before the end of the current period - The cost of renewal will be charged to your account in the 24 hours prior to the end of the current period - When canceling a subscription, your subscription will stay active until the end of the period. Auto-renewal will be disabled, but the current subscription will not be refunded - Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription Terms & Conditions: [https://magic-cake-e95.notion.site/LE05-Digitalism-2000-AUv3-Terms-Conditions-150cf6557a08802389aad0765382fe66?pvs=4](https://www.notion.so/LE05-Digitalism-2000-AUv3-Terms-Conditions-150cf6557a08802389aad0765382fe66?pvs=21) Privacy Policy: [https://magic-cake-e95.notion.site/LE05-Digitalism-2000-AUv3-Privacy-Policy-150cf6557a08806fabb3cbff1e1f5f3f?pvs=4](https://www.notion.so/LE05-Digitalism-2000-AUv3-Privacy-Policy-150cf6557a08806fabb3cbff1e1f5f3f?pvs=21) * NOTE: This app has no official affiliation with AudioKit Pro, LLC. It was built using the free AudioKit source code.
Screenshots
Verdict
The clearest difference is ads: AutoArp at none against LE05's shown. AutoArp also leads on review sentiment (82% vs 54%) and iOS requirement (10.0 vs 13.0). LE05's advantage is update cadence (every 6 weeks vs every 4 months) and ratings volume (139 vs 26). On price, rating, in-app purchases and monetization model 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. AutoArp sells 1 one-off in-app purchase and LE05 sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
AutoArp holds the better App Store score, 4.3 against 4.1. That said, the two scores are not equally well evidenced: LE05 has 139 ratings behind it against 26, so its average is the more settled of the two. Written reviews point the same way: 82% of AutoArp's written reviews are positive against 54% of LE05's.
AutoArp ships an update every 4 months, LE05 every 6 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | AutoArp | LE05 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (26 ratings) — better | 4.1 (139 ratings) |
| Positive reviews | 82.1% of reviews — better | 54.1% of reviews |
| Number of ratings | 26 | 139 — better |
| Update frequency | Every 4 months | Every 6 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 5 MB | 209 MB |
| Age rating | 4+ | 4+ |
| Developer | Drew Milloy | Audiobus Pty Ltd |
Customer experience
AutoArp
LE05
Bugs and requests
AutoArp
Not enough reviews yet to summarise bugs or requests.
LE05
Reported bugs
13 issues- GarageBand crashes when opening songs with the Audio Unit
- Digitalism not recognized in GarageBand
- No sound when playing MIDI tracks in GarageBand
- State-saving doesn't hold Audio Unit patch settings and parameters
- App crashes at the point of entering the song editor
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- App no longer opens in projects (GarageBand, Logic, Cubasis)
- No audio when reopening projects
- Preset selection causes crashes in Cubasis
- Background audio feature does not work
- Scrolling through sound bank menus is jumpy or doesn't work
- Audio bugs need fixing
- Crashes at times, not very reliable
- Latency with Bluetooth headphones
Requested features
8 requests- Undo/redo button
- Release for computer (Logic Pro)
- Add Audiobus connection
- More 80s, Synthwave, Funky, Italo disco sounds
- Add a record button
Show 3 moreShow fewer
- Fix UI layout on iPhone SE 2020
- Add sustain pedal support
- Add instruction manual
In-app purchases
AutoArp
- Full functionality$0.99
LE05
- Weekly premium7 Days trial$2.997 Days
- Weekly premium$2.997 Days
- Yearly premium$9.991 Year
Show 1 moreShow fewer
- Yearly premium7 Days trial$9.991 Year









