Comparison

Analog Rack Delay vs Interval

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

Head to head
About

Analog Rack Delay

This audio plugin offers the powerful delay algorithms of Nembrini Audio in a user-friendly package. It features BPM sync, a stereo spread circuit, and a rich analog tube preamp for unique signal coloration. Use it as a standalone app or within other music production software.

Highlights
  • Analog delay algorithms
  • BPM Sync
  • Stereo spread circuit
  • Tube preamp coloration
  • Standalone app
  • AudioUnit v3 effect
  • Inter-App Audio effect
Features
Read full description

The Analog Rack Delay plugin is the power of Nembrini Audio’s delay algorithms in a simple package! BPM Sync, stereo spread circuit and a very juicy sound! Nembrini Audio has taken the guitarists most preferred analog and digital effect pedals and has repacked it in new rack style plugins easy to use and extremely powerful at the same time, with the addition of a custom design tube preamp virtual circuit which gives color to the signal in a very special way. Just insert the Analog Rack Delay plugin in your tracks to hear its beautiful analog tube coloration! Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect

About

Interval

This app provides a comprehensive suite of tools for guitarists, including a tuner, metronome, drone, and theory resources. It automatically logs practice sessions, tracks progress, and offers insights into your development.

Highlights
  • Integrated tuner with alternate tunings
  • Metronome with customizable click sounds and volume
  • Drone in twelve keys
  • Note and voice memo recording
  • Scale, chord, and theory resources
  • Automatic practice session logging
  • Progress tracking and streak counting
Features
Read full description

Interval is a daily practice journal for whatever you play. Start a session and the timer runs. A metronome, a drone, notes and voice memos are one tap away without leaving it — so you never stop practicing to go and find a tool. Guitar, bass and ukulele also get a tuner and scale diagrams drawn along the neck. WHAT YOU GET • A practice timer that keeps running while you use everything else • A metronome with four click sounds and its own volume • A drone in any of twelve keys • Notes and voice memos, to catch an idea while you are playing • A tuner, on the instruments that have strings to tune • Scales, chords and short theory written for people teaching themselves • A calendar that fills in as you play, and a streak that does not shame you PICK WHAT YOU PLAY Guitar, bass, piano or keyboard, ukulele, or anything else. The tools follow your choice. Nothing pretends to be something it is not: there is no keyboard diagram, and no sheet music. LEARNING WITH A TEACHER? If your teacher uses Interval, they give you a six-digit code. That is the whole setup — no email, no password. Your teacher can set the week's practice: a few tasks, a time on each, and a line about what to listen for. Tap start and you are in the usual session screen, with each task keeping its own time against its own target. It saves to your journal by itself, and your teacher sees the time you put in without you having to tell them. YOUR PRACTICE STAYS YOURS No account to make, no analytics, no tracking, no ads. Unless you connect to a teacher, there is no Interval server for your practice to go to at all. What you write stays on your phone unless you choose to share a page with your teacher, and your recordings never leave it at all. You can disconnect, or delete your account and everything sent from it, from Settings at any time. A copy of your journal is kept in your own iCloud so a lost phone does not cost you your history. You can switch that off in one tap. Recordings are never included. INTERVAL PRO Interval Pro is an optional auto-renewing subscription that unlocks your full practice history, the guided drills and reference, and the tempo trainer. It is $7.99 per month, or $49.99 per year with a 7-day free trial. Payment is charged to your Apple Account when you confirm the purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. You can manage or cancel it in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://intervalpractice.com/privacy

Screenshots

Analog Rack Delay1 screens
Interval4 screens

Verdict

The call

The clearest difference is update cadence: Interval at weekly against Analog Rack Delay's every 5 months. Interval also leads on monetization model (free vs free with in-app purchases) and rating (5.0 vs 4.8). Analog Rack Delay's advantage is ratings volume (32 vs 1). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Interval holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Analog Rack Delay has 32 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Analog Rack Delay ships an update every 5 months, Interval weekly. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
Analog Rack Delay versus Interval: the parameters behind the verdict, then further details
ParameterAnalog Rack DelayInterval
PriceFreeFree
Rating4.8 (32 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings32 — better1
Update frequencyEvery 5 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS1515.0
Further details — not scored
Size25 MB27 MB
Age rating4+17+
DeveloperNembrini AudioBijan Pousti

Customer experience

Analog Rack Delay

All ratings32 ratings
Positive96.9%
Neutral0.0%
Negative3.1%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Interval

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Analog Rack Delay

No in-app purchases

None

Interval

No in-app purchases

Questions

Is Analog Rack Delay free?
Analog Rack Delay is free to download, with no in-app purchases.
Is Interval free?
Interval is free to download, with no in-app purchases.
Which has better reviews, Analog Rack Delay or Interval?
Interval is rated higher. Analog Rack Delay averages 4.8 out of 5 from 32 ratings, while Interval averages 5.0 from 1 ratings.
Do Analog Rack Delay or Interval have ads?
Neither Analog Rack Delay nor Interval shows ads.
Which is updated more often, Analog Rack Delay or Interval?
Analog Rack Delay ships an update every 5 months, and Interval weekly. Most recently, Analog Rack Delay was updated on October 13, 2026 and Interval on October 18, 2026.

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