Song Builder vs SUS4 BPM
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Song Builder
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SongBuilder is a focused writing space designed specifically for songwriters. Stop using generic notes apps to write structured songs. SongBuilder gives you a clean, purpose-built framework with dedicated sections for: β’ Verse 1 β’ Verse 2 β’ Verse 3 β’ Chorus β’ Bridge Write freely with no character limits. Build complete songs or capture fragments of inspiration in seconds. Key Features β’ Structured song framework (Verse / Chorus / Bridge) β’ Unlimited songs β’ No character limits β’ Favourites (star your best ideas) β’ Tags & moods (e.g. R&B, Afrobeat, Sad, Upbeat) β’ Search functionality β’ Sort by Created, Updated, Title or Favourites β’ Clean, distraction-free design β’ iPhone-optimised experience Whether youβre drafting lyrics, refining hooks, or organising a catalogue of ideas, SongBuilder helps you move from inspiration to finished song with clarity and structure. Simple. Focused. Built for songwriters.
SUS4 BPM
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What's the tempo? Tap it. Or just let the app listen. SUS4 BPM does two things: it captures tempo from your taps, and it detects BPM live from a mic or an audio file. Both are useful. When a musician in the room is playing something and you need to know the exact tempo before you open your DAW or set a metronome, just point your phone and read the number. Tap mode averages your taps and shows a stable BPM immediately. Live detection mode streams the BPM in real time from any audio source β a drummer practising, a track playing on a speaker, a click in a film cue. File analysis lets you load a recording and pull the tempo without even being in the same room as the player. β’ Tap-tempo averaging with immediate stable readout β’ Live streaming BPM detection from any audio source via mic β’ Audio file analysis β load a track, get the tempo β’ Clean, large display β readable at a glance from across a desk β’ Subscribe monthly, or unlock the full SUS4 suite forever: unlimited live detection sessions and file analyses Everything runs on your device. No audio files are ever uploaded. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Song Builder at none against SUS4 BPM's 1. SUS4 BPM's advantage is device support (4 vs 1) and iOS requirement (16.0 vs 26.2). On price, update cadence and ads there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. SUS4 BPM sells 1 in-app purchase, starting at $1.99 per month. Song Builder asks for nothing beyond the download.
Song Builder ships an update monthly, SUS4 BPM fortnightly. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.
| Parameter | Song Builder | SUS4 BPM |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Fortnightly β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone | iPhone, iPad, Mac, Apple Watch β better |
| Requires iOS | 26.2 | 16.0 β better |
| Further details β not scored | ||
| Size | 2 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Julian Cambridge | ThePaulSmith |
In-app purchases
Song Builder
No in-app purchases
SUS4 BPM
- SUS4 BPM Pro Monthly$1.991 Month
Questions
Is Song Builder free?
Is SUS4 BPM free?
Do Song Builder or SUS4 BPM have ads?
Which is updated more often, Song Builder or SUS4 BPM?
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