Loop Slower vs JamJar Music
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Loop Slower
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A simple tool that allows you to loop a section of a song and adjust the playback speed. Perfect for anyone who’s practicing an instrument and want to jam along at desired speed, or when transcribing a song. The app offers: - Changing playback speed - Looping particular section of a song - Saving loops and speed per song automatically - Searching and playing songs from your library (on device) - Searching and playing songs on Apple Music* - Recently played songs for quick access * playing full songs on Apple Music requires an active Apple Music subscription.
JamJar Music
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JamJar keeps your whole song collection in one place — sheet music, chords, and lyrics — organized, searchable, and synced across iPhone, iPad, and Mac through your own iCloud. As a hobby musician, my music was scattered everywhere: PDF books, tunes from public-domain archives, photos of pages off my shelf and several music apps. Finding a song again was harder than playing it, so I built JamJar to be one shelf for all of it. BRING YOUR OWN MUSIC • Import single songs or whole books as PDFs and images • Scan paper books with the camera on iPhone or iPad • Search online tune collections and import • Open files from the apps you already use: ChordPro, ABC, OnSong, OpenSong, iReal Pro, and MusicXML LESS TYPING, MORE PLAYING • Scan or import a page and JamJar reads the title, composer, and key off it, then files the song for you • Split a scanned book into separate songs automatically • Ask about any song in plain language — what key is this in, how does the form repeat — and get a straight answer • Ask for changes in the same conversation: transpose it, tidy the chords • Powered by Apple Intelligence PLAY TOGETHER • Build set lists for a gig, a rehearsal, or a lesson • Share a set list with your bandmates so everyone's on the same running order • Reorder on the fly when the night goes sideways CREATE AND EDIT • Write and edit songs in ChordPro or ABC notation • Beautifully rendered chord sheets and notation • Transpose to any key • Draw and highlight directly on your sheet music STAY ORGANIZED • Tag, search, and filter your library • Automate with Siri and Shortcuts • Private sync through your own iCloud — no account, no sign-up PRACTICE WITH BACKING BAND • Hear any chart played with the right groove for the tune • Mix each band part with its own fader — pull one out and play it yourself JamJar speaks English and Swedish, with more languages on the way. Whether you're rehearsing, teaching, or on stage, JamJar keeps every song ready to play.
Screenshots
Verdict
The clearest difference is price: JamJar Music at Free against Loop Slower's $0.99. JamJar Music also leads on update cadence (every 2 weeks vs every 12 months). Loop Slower's advantage is iOS requirement (17.1 vs 27.0). On ads, in-app purchases 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
JamJar Music is free to download; Loop Slower costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Loop Slower ships an update every 12 months, JamJar Music every 2 weeks. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.
| Parameter | Loop Slower | JamJar Music |
|---|---|---|
| Price | $0.99 | Free — better |
| Update frequency | Every 12 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 17.1 — better | 27.0 |
| Further details — not scored | ||
| Size | 5 MB | 67 MB |
| Age rating | 9+ | 4+ |
| Developer | Algirdas Gridziuska | Norrkross Software |
In-app purchases
Loop Slower
No in-app purchases
JamJar Music
No in-app purchases








