In Progress vs Evil Otto
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
In Progress
This app consolidates all your audio files from various sources into one organized library. It offers advanced playback features, offline key detection, and transposition, with a focus on user ownership and privacy.
- Import audio from multiple sources
- Organize with nested folders and playlists
- Manual queue and playback controls
- Offline key detection and transposition
- A/B looping for producers
- Share playlists offline via AirDrop
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IN PROGRESS — LOCAL AUDIO PLAYER. Pay once. Own it forever Every session leaves a trail of files — demos on your phone, sessions from your DAW, references sent over WhatsApp, ideas recorded at 2am. They're everywhere. In Progress is where they all live YOUR FILES, ONE PLACE. Import from anywhere: Files, iCloud Drive, WhatsApp, AirDrop, Voice Memos, Finder. Share any video from the Photos App, and we extract the audio automatically — no extra steps. Organize with playlists and folders, nested however you think. Sort by name or import date BUILT FOR PLAYBACK: A manual queue - Add any track on the fly, drain it, keep going. Loop one track, loop all, or shuffle. Full lock screen and headphone controls. Beautiful, tactile interface built for daily use. SHARE YOUR MUSIC: Send any playlist to another In Progress user via AirDrop — everything travels together, the playlist and every file inside it — no cloud, no account, no internet. Just tap, and it's there. Works with iMessage and WhatsApp too. KNOW YOUR MUSIC: Detect the musical key of any track instantly — no internet, no upload, processed right on your device. Need to match a reference or play along in a different key? Transpose any track offline, semitone by semitone. The original file is always preserved. Revert anytime. FOR PRODUCERS: Unlock Producer Tools in Settings to go deeper. On the player, swipe the controls left to reveal a second page built for serious listening. Set an A/B loop section with a long press on the scrubber — lock any passage and repeat it until you own it. Control playback speed from 0.5× to 2×, with pitch preserved. Hold to reset to 1×. Everything happens on your device. No internet. No cloud. No waiting. NO SUBSCRIPTIONS. NO ACCOUNTS. NO INTERNET. EVER. Your music lives on your device. Not in someone else's server. Not behind a monthly fee. Download once, own it forever — today, tomorrow, and in ten years. IN PROGRESS — YOUR MUSIC, YOUR RULES. Feature List: - Import from Files app (single files or entire folders) - Import from third-party messaging apps (WhatsApp, iMessage) - Import from Voice Memos - Import from Photos App - Create Playlists - Add your Files to your Playlists - Import Entire Playlists from Other Users - Share Entire Playlists with Other Users - Create Folders of Playlists - Endless Nesting of Folders - Sort Your Music - Lockscreen and Dynamic Island Controls - Shuffle Mode - Loop and Loop One - Double-tap to Skip 5s/ 10s/ 15s - Queue and Add to Queue logic - CarPlay - Small Home Screen Widget - Analyze the Key of your Music (More Info) - Transpose your Music - Trim your Music - Loop Section A/B - Playback Speed (hold for 1x) - Pitch Preservation On/Off - Large Text Setting - Light/ Dark mode - Take Notes on Your Tracks
Evil Otto
This audio effect applies simultaneous upward and downward compression across three frequency bands for detailed sound. It offers precise control over audio dynamics and includes features like sidechain input and real-time metering.
- Three-band OTT compression
- Precise control parameters
- Sidechain input for rhythmic effects
- Real-time metering per band
- Factory and user presets
- Cross-platform preset compatibility
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Evil Otto is a multiband OTT (Over-The-Top) compressor that applies simultaneous upward and downward compression across three frequency bands. The result is dense, hyper-detailed audio where peaks are controlled and quiet details are pushed forward — a sound heard across modern electronic music, pop, and hip-hop production. Features -- Three-Band OTT Compression Evil Otto splits your signal into low, mid, and high frequency bands and applies independent upward and downward compression to each. Quiet details come up, peaks come down, and each band can be tuned separately. -- Precise Control Without Complexity Fifteen parameters give you everything you need and nothing you don't: Depth, Time, independent Down and Up amounts, per-band thresholds, per-band output levels, and input/output gain. -- Sidechain Input Route an external signal to duck the compressed output for rhythmic pumping effects. A dedicated Listen mode lets you monitor the sidechain signal to verify routing. -- Real-Time Metering Nine meters show input levels, gain reduction, and output levels per band. The center meters display both downward compression and upward expansion relative to the threshold, so you can see exactly what the compressor is doing. -- Factory Presets Includes a library of starting points across a range of applications. Save and recall your own presets with the built-in preset browser. -- Cross-Platform Compatible User presets created on iOS work on macOS, Windows, and Linux. Sessions created in GarageBand or Logic on iOS will open the desktop version on macOS.
Screenshots
Verdict
The clearest difference is review sentiment: In Progress at 100% against Evil Otto's 50%. In Progress also leads on rating (5.0 vs 4.5). Evil Otto's advantage is price (Free vs $1.99) and iOS requirement (12.0 vs 17.2). On ratings volume, ads, 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
Evil Otto is free to download; In Progress costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
In Progress holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews point the same way: 100% of In Progress's written reviews are positive against 50% of Evil Otto's.
| Parameter | In Progress | Evil Otto |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (9 ratings) — better | 4.5 (4 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 9 — better | 4 |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Guilherme Xavier | Audio Damage, Inc. |
Customer experience
In Progress
Evil Otto
In-app purchases
In Progress
No in-app purchases
Evil Otto
No in-app purchases









