Fortissimo

Streaming taught a generation to treat music as an endless current. The next track arrives before the last one fades, chosen by someone else’s model. Fortissimo goes the other way. Built for iPhone by independent developer Jason Ruby, it is an offline, album-first music player that plays only your own local library, such as MP3s, downloads and CD rips. It refuses the rest of the modern playbook outright: no streaming, no feeds, no recommendations, no autoplay. When the record ends, the music stops.

In place of all that, it offers judgement. Every track gets a rating from 0 to 10 in half-point steps. The Fortissimo Ranking Engine turns those ratings into an album score, then ranks the album across your library and against the rest of the artist’s catalog. Notes attach to individual tracks, smart playlists draw on your ratings and listening history, and the whole archive can leave the app as a CSV. The pitch is narrow and explicit. Fortissimo is for people who listen to albums in full and want to remember, in specific terms, how they felt about them over time.

The origin story fits: Fortissimo is positioned for a niche audience rather than a mass one, built around ranking a personal collection of ripped CDs. That is unusually candid positioning, and it is probably accurate. The idea of championing your own collection and personal rankings has appeal, even for listeners who mostly stream.

The business model is just as purist: a one-time $9.99 purchase, no ads, no subscription, and a hard requirement of iOS 26 or later. The store rating offers no guidance, so buyers are paying for the concept rather than following a crowd’s verdict. We judge it on those terms: design, fit and value.

• Half-point track ratings: Each song is scored from 0 to 10 in 0.5 increments.
• Fortissimo Ranking Engine: It turns track ratings into an album score that you can override. It then ranks that album across your whole library and against the artist’s own catalog.
• Adjustable weighting: You control how much hidden tracks, interludes and short songs influence album scores.
• Flip-side notes: Flipping the album artwork reveals notes attached to its tracks.
• Fermata Mode: A dedicated, focused listening mode.
• Smart playlists: Playlists are built from ratings, notes and listening history.
• Universal search: One search field covers albums, songs, notes and playlists.
• Non-destructive metadata editing: You can correct tags without altering the original files.
• Data protection and portability: iCloud backup, optional PIN protection and CSV export.
• Monochrome interface: A black-and-white UI in which album art supplies the only color.
• Pricing and requirements: $9.99 once, with no ads or subscription. Requires iOS 26 or later.

The Ranking Engine

The ranking engine is Fortissimo’s strongest idea, and its design shows careful thought. A five-star system squeezes every good song into the top two or three slots. A 100-point scale invites false precision. The 0–10 half-point scale sits between the two: enough granularity to separate a 7.5 from an 8 without asking anyone to defend the gap between 83 and 84.

The weighting controls show an understanding of albums. Many records include connective tissue: a 40-second spoken intro, a skit, an instrumental segue, a hidden track tucked behind minutes of silence. Average every track equally and those pieces drag down a strong album for reasons that have nothing to do with its songs. Letting the user decide how much interludes and short songs count treats the album as a sequenced work rather than a bag of songs.

The album score override is the right call, though it creates a tension. Some albums defy arithmetic: one single whose placement makes it hit harder, surrounded by filler, or a record whose sequencing carries mediocre parts. The override admits that a formula cannot capture everything. The risk is that a user who overrides constantly turns the engine into decoration. We would rather have the escape hatch than not, because a system that cannot be corrected tends to get abandoned.

Ranking against the artist’s catalog is where the payoff scales with your collection. Seeing a band’s albums ordered by your own scores is compelling, but only if you own several of them. A library-wide rank among a small collection says little. A rank among a large collection says more. Small collections get the rating tools without the full reward.

The Cost of Keeping Score

Every track rating is a decision, and an album means one for each song. Fortissimo is built for people who want that work, and that is a legitimate design target. Still, the system’s output can only be as consistent as its input. A library rated diligently for a year and sporadically afterward will produce rankings that reflect the rating habit as much as the music. There is also a philosophical cost: grading every song can turn listening into homework. Fortissimo’s intended audience will call that the point. Everyone else should take it as fair warning.

Notes, Fermata Mode and Memory

Flipping the artwork to reveal notes is a skeuomorphic gesture done with purpose. It recalls turning over a sleeve or jewel case to read the liner notes, except these liner notes are yours. It is charming, but content hidden behind a gesture always carries a discoverability cost, and the design depends on users learning that the cover has a back.

More important, the notes do not sit in isolation. Universal search reaches into them, and smart playlists can draw on them. That turns a private diary into structured data. Combined with listening history, it gives the “how you feel about them over time” promise some substance: your reactions become something you can query rather than just reread.

Fermata Mode takes its name from the notation mark that tells a performer to hold a note. The name promises focus; the feature is best understood as a statement of intent for a player with no feed to escape.

Library Housekeeping

Non-destructive metadata editing matters more than it sounds. CD rips often carry messy tags: wrong years, inconsistent artist spellings, compilation confusion. Fixing them inside Fortissimo leaves the source files untouched, so backups and other players stay clean. The logical trade-off is that those corrections live with the app rather than travelling with the files.

The data safeguards fit the app’s purpose. Years of half-point ratings and track notes cannot be replaced, so iCloud backup is essential rather than a nice extra. CSV export means your ratings belong to you and can feed a spreadsheet or outlive the app. PIN protection recognizes that track notes can be as personal as a journal.

The Offline Bargain

Offline-only is a principle with practical consequences. Playback never depends on a connection. But the library is exactly what you put on the phone, and managing files on an iPhone has always been the friction point of this category. An iPhone’s storage also limits how much of a large collection fits at once, and a large ripped collection is the kind that strains it. Album-first listeners with lossless rips, or anyone who depends on gapless transitions, should confirm format and playback support before buying.

The black-and-white interface makes one strong art-direction choice: album art is the only color on screen. That puts covers forward as the app’s entire visual identity, much as a gallery hangs paintings on plain walls. It suits a product about records rather than recommendations. The risk with strict monochrome is hierarchy. Without color for emphasis, selected states, active controls and destructive actions must be distinguished through weight, contrast and layout alone, which demands discipline from the design.

On performance, the architecture favors stability. With no streaming there is no buffering, and turning half-point ratings into album scores and ranks is simple arithmetic that even a large library should handle without strain on current hardware. The iOS 26 requirement suggests the app targets current system frameworks rather than carrying legacy support.

• iPhone only: Fortissimo is pitched as an iPhone app, and no iPad, Mac or Android version is part of the offer.
• Touch-first design: The flip-the-artwork notes gesture is built for direct manipulation on a touchscreen.
• iOS 26 or later: Phones that cannot run iOS 26 are excluded entirely, which narrows an already narrow audience.
• Ecosystem ties: Backup runs through iCloud, which suits users committed to Apple’s ecosystem. CSV export is the platform-neutral way out for your data.
• Pricing: $9.99 once through the App Store, with no ads and no subscription layered on top.

Fortissimo is a narrow tool with a clear purpose, and most listeners should pass. The ranking engine, especially its handling of interludes and hidden tracks, is the strongest part: it treats albums as sequenced works rather than bags of songs. Searchable notes, rule-driven smart playlists, non-destructive tag editing and CSV export form a coherent system for keeping a personal record of listening.

The costs are steep for anyone outside that target. Rating every track by hand is the price of entry, and the rankings only become useful with a large local collection. The app is iPhone-only and requires iOS 26 or later, and the store rating offers no guidance. At $9.99 with no subscription, the price is fair for committed album collectors and hard to justify for streaming-first listeners who merely like the idea.

We recommend Fortissimo only to album listeners with deep local collections and a habit of keeping score. Shuffle-first and streaming-first listeners will find little here, and the app makes no apology for that.