EQ Ear vs Patch & I/O
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
EQ Ear
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Most producers learn to see a mix before they can hear one. EQ Ear works the other way round. Every question is audio first. You hear a loop, you make a call, and you find out exactly how close you were โ in hertz and decibels. FIVE WAYS TO LISTEN EQ โ Move four faders until your curve locks onto the track. Bass, low-mid, high-mid, treble. Compare โ Two mixes, one band moved. The sliders are locked, so you diagnose by ear alone: which band, and was it boosted or cut? Pinpoint โ Forget four broad bands. Name the exact frequency, from 125 Hz to 8 kHz, on a logarithmic scale that shows you where each one really sits. Tempo โ Drum loops from 60 to 200 BPM. Tap along, read your pulse, lock your internal clock before you open the DAW. Recall โ Hear a take. Five seconds of silence. Hear it again. Did the tone change, or is your memory filling in the gaps? A PATH, NOT A QUIZ 900+ questions across nine categories of music. Every lesson mixes three of the five modes, so you never settle into one kind of listening. Start with First Training โ four bands, no genre, nothing to memorise. Then move into vocals, guitar, piano, pop, electronic, rock, classical, jazz and hip-hop. Each one carries its own frequency problems: sibilance in a vocal, mud in a guitar, sub weight in an 808. SEE EXACTLY WHAT YOU MISSED Getting it wrong is the lesson. After every round you see your curve drawn against the track, band by band, with the hertz and decibels you were off by. Then you can play the loop again with the correct EQ applied and hear the difference you could not hear a minute ago. Retrying a lesson is always free. Take a level as many times as you need. SURVIVAL MODE When you want to stop studying and start competing: all five modes, every category, endless. Speed feeds your score, one miss ends the run, and your best resets every week. BUILT FOR EARS THAT WORK Four bands mapped to real ranges โ 20-250 Hz, 250-500 Hz, 500 Hz-4 kHz, 4-20 kHz โ colour-coded everywhere in the app so the map stays in your head. Clean filters, seamless A/B switching with no click, and loops that keep running while you decide. Practice mode lets you pull any single mode out of the lessons you have finished and drill it on its own. Weak on tempo? Run tempo only. Streaks, XP and ranks track the long game, from Tin Ear upward. WHO IT IS FOR Producers and mixing engineers who want faster decisions. Musicians who want to hear what an engineer hears. Anyone who has stared at an EQ curve wondering whether they are fixing the sound or just moving it. No theory. No notation. No prior training. PASSES AND PLUS Passes open new lessons. You start with ten and get more every day, so you can work through the app for free at a steady pace. EQ Ear Plus removes the limit: every category, every lesson, unlimited Survival runs, no waiting. The full tutorial is free and always will be. Headphones or monitors strongly recommended. Phone speakers cannot reproduce the low end, and the low end is half the training. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://eqear.candevecioglu.com/support.html Terms of Use: https://eqear.candevecioglu.com/terms.html Privacy Policy: https://eqear.candevecioglu.com/privacy.html
Patch & I/O
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Input list, patchbay and stage plot in one app. Type the sheet and the signal flow diagram draws itself, and the app tells you when a mic that needs phantom is sitting on an input that cannot supply it. One show is one project. Fill in the channel sheet, lay out the patchbay, draw the stage plot, and print the paper you hand the crew โ all in one app. โ I/O LIST CH ยท SOURCE ยท PICK UP ยท STAND ยท REMARKS, the way the sheet looks on site. Live and recording need different columns, so they are separate kinds โ recording shows PREAMP, INSERT and DAW TRACK as well. Mics and stands are counted by model into their own list. No counting when you pull gear from the store room. โ WHAT IT CATCHES - A source that needs 48V phantom on an input that cannot supply it - Phantom reaching a ribbon mic or other gear it can damage - A speaker-level output going into a line input - The same channel number used on two rows - Connector families that do not mate, so an adapter is needed โ SIGNAL FLOW The sources and mics you typed become the diagram. Identical models are merged and counted (x4), and tapping one channel follows just that path. Chains that do not fit a channel sheet โ outputs and monitors, clock, power โ are drawn by hand. Drag block to block to connect them, or draw the line with Apple Pencil. โ PATCHBAY 24, 48 or 96 columns. Draw a segment and the jacks in that range get names and numbers; normalling is set per segment too โ full normal, half normal, thru. Label strips print at actual size. That is the paper you cut and slide into the bay window. Jack pitch differs by model, so you measure and enter it, and the sheet carries a ruler mark to prove your printer did not scale the page. If it is not 100 mm, print again. Note: the default pitch (9.5 mm for a 48-point 1U bantam bay) is a reference value. Measure your own bay before printing. โ STAGE PLOT Place, rotate and resize drums, amps, wedges and stands. Put things on risers, and attach channel numbers from the I/O list to any symbol. Draw the venue's standard layout once, then copy it for each show. You can mark it up with Apple Pencil (view-only on Mac). โ ON PAPER I/O list, patchbay sheet, label strip, signal flow, stage plot โ all export as PDF. Long channel counts split across pages, and when the inputs overflow they flow into two columns so you use less paper. โ LEARN (ALL FREE) Photographs and pin tables for nine connectors: XLR, TRS, TS, bantam, RCA, Speakon and DB25. Cable wiring diagrams, and a practice mode where you connect the pins at each end yourself. The things that catch people out on site are written down โ such as how to handle pin 3 (cold) in an insert Y-cable. โ WHAT THE FREE VERSION DOES - Build and view every screen. No limit on channel count - Two each of: live projects, recording projects, patchbays, diagrams, stage plots - PDF export works (with a watermark) - All of Learn - iCloud sync is free too. Change devices and everything is still there The lifetime unlock removes the document limits and the watermark, and adds CSV import/export and actual-size label strip printing. It is not a subscription. Buy once, and it opens on your iPhone, iPad and Mac under the same Apple Account. โ FROM THE MAKER Built to use on the job. If something is missing or wrong, tell me.
Screenshots
Verdict
EQ Ear and Patch & I/O are too close to call on the numbers: across 6 compared parameters โ price, update cadence, ads and in-app purchases among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. EQ Ear sells 2 in-app purchases, starting at $7.99 per month and Patch & I/O sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
EQ Ear ships an update every 8 days, Patch & I/O weekly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.
| Parameter | EQ Ear | Patch & I/O |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days | Weekly โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Mac โ better |
| Requires iOS | 17.0 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 142 MB | 6 MB |
| Age rating | 9+ | 4+ |
| Developer | Can Devecioglu | HYO SEOP LEE |
In-app purchases
EQ Ear
- Monthly Plus$7.991 Month
- Yearly Plus$34.991 Year
Patch & I/O
- Lifetime Unlock$11.99









