Not YYZ vs Song Sift
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Not YYZ
Explore alternate musical interpretations of a famous instrumental song by a legendary rock band. Input any three letters to hear a unique rendition and discover associated airport information.
- Customizable song generation
- Airport database search
- Morse code rhythm guide
- Random letter generator
- Airport name and location display
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Not YYZ is a mind-bending app for knowledgeable fans of the band Rush. Not YYZ lets you hear what "YYZ" would sound like if Rush wasn't from Toronto. Neil Peart: "We were in a small plane and hearing from the cockpit the Morse code rhythm, and I said `Oh, wouldn't that be a neat introduction'...This song's an instrumental, but it's about YYZ airport. It's about airports." The beginning of "YYZ" by Rush is based on the Morse code for YYZ, which is the IATA airport identifier for Toronto Pearson International Airport. But what if Rush wasn't from Toronto? What would "YYZ" sound like if Rush was from your city? Not YYZ provides the answer. Pick any combination of three letters (other than YYZ) and Not YYZ will play it in the style of "YYZ" by Rush. If the letters match an airport identifier, the airport's name and location will appear in the player. Search for airports you've traveled through and cities you've visited. Try your initials. Create your own rhythms using the Morse code as a guide. The possibilities are endless!** FEATURES: -Browsable and searchable database of over 9000 airports. -Tap the Not YYZ banner or shake the device to get random letters in the letter picker. **Actually there are exactly 17575 playable possibilities.
Song Sift
This app uses advanced AI to separate vocals and instruments from any song, allowing you to create custom mixes. Easily adjust stem volumes, mute parts, or use presets for karaoke and backing tracks. Organize and download your creations in high quality.
- Automatic vocal and instrument separation
- Customizable mixes with stem control
- Preset mixes for quick creation
- High-quality audio exports
- Personal music library
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Song Sift: Split stems, remove vocals & create custom mixes your way. Song Sift lets musicians of all levels turn any song into a custom mix. Isolate vocals and instruments, adjust stems to fit your style — all powered by next-gen audio AI. You can create and customize your mix exactly the way you want — with total ease. Your practice sessions and performances will never be the same. Fast and easy: just upload or record a song Our AI instantly splits your track into stems. Adjust the volume of vocals, drums, bass, guitar, and more. Mute parts or highlight what matters — all at your own pace and style. Explore ready-made versions Make things even easier by choosing from preset mixes like karaoke, guitar backing tracks, drums, bass, and more. Even beginners can create the perfect mix — no experience required. Organize and download your tracks Access all your creations anytime in your personal library and download them in high quality whenever you need. Features made for you: • Automatic vocal and instrument separation • Custom mixes with full control • Quick mixes with ready-made presets • High-quality exports for sharing Unlock UNLIMITED features with Song Sift PRO With a Song Sift PRO subscription, you get exclusive tools to take your mixes even further: • Full-length tracks for bigger projects • Unlimited exports to share without limits • Ad-free experience so you can focus on the music … and more! Song Sift blends powerful technology with a love for music, helping you improve, create, and share your talent with the world. Download now and take your music, practice, and performance to the next level! Terms of Use and Privacy Policy: https://m.letras.mus.br/aviso-legal.html
Screenshots
Verdict
The clearest difference is price: Song Sift at Free against Not YYZ's $0.99. Song Sift also leads on update cadence (every 2 months vs every 3 months) and review sentiment (100% vs 90%). Not YYZ's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.0). On ads 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
Song Sift is free to download; Not YYZ costs $0.99 up front. Song Sift sells 2 in-app purchases, starting at $2.99 per month. Not YYZ asks for nothing beyond the download.
Not YYZ ships an update every 3 months, Song Sift every 2 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | Not YYZ | Song Sift |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 90.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 15 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | Dr. Tae | Studio Sol Comunicacao Digital LTDA |
Customer experience
Not YYZ
Song Sift
In-app purchases
Not YYZ
No in-app purchases
Song Sift
- Song Sift Pro$2.991 Month
- Song Sift Pro$29.991 Year









