Analyzer vs SL Bass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Analyzer
This app combines a sound pressure level meter with a multi-band frequency analyzer. It's designed for audio professionals and enthusiasts to evaluate acoustic environments, test equipment, and analyze sound in various settings. Offers advanced features and calibration options for accurate measurements.
- SPL meter with A, B, C, Z weighting
- Realtime audio analyzer (RTA)
- Selectable bandwidth up to 1/1200 octave
- FFT analysis with selectable block size
- Signal generator (pink/white noise, sine)
- Touch gesture zoom and reticle functionality
- Store, load, and export measurement data
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The Analyzer is a combination of a sound pressure level (SPL) meter and a full range multiple bands frequency analyzer. It is mainly designed for audio professionals who need to evaluate different working environments (e.g. studios, live stages)... that’s why it’s perfect for anyone who’s in need of acoustical analysis!! It is easy to use and comes with amazing features only known from professional acoustic tools. Use the Analyzer for measuring stages, testing speakers, setting up your hi-fi system, evaluating sound mixing environments, analyzing your instrument... or for measuring the noise your neighbor makes with his new stereo! The Analyzer is pre-calibrated for all iDevices, but it includes a calibration function as well. It comes with a highly intuitive user interface with zoom gesture control, individual color settings, reticle zoom and many more exciting features. The Analyzer can store, load and export measurement data and supports iCloud storage. Combine the Analyzer with external microphones such as the MicW i436 or Microtech M372 for better measurement performance! Or use it with external USB audio hardware like the RME Fireface UCX or the Alesis IO dock, change the measurement scale to dB (FS) and use it as a studio Realtime Analyzer! ANALYZER FEATURES SPL Meter: - SPL measurement weighting functions: A B C Z - Industry standard response times: impulse, fast and slow - Meter switchable to dB FS for measuring with external USB interface - Pre-calibrated for all available iOS devices Realtime Audio Analyzer (RTA) audio engine: - Bandwidth selectable from 1 octave up to 1/1200 octave (depending on your iDevice) - FFT block size from 1024 to 65536 samples - 6 different FFT window functions - Leq measurement - Automatic peak detection - Signal generator: pink and white noise, sine - Manual and automatic calibration - Frequency response compensation for different mic characteristics of the built-in microphones RTA graphics: - Touch gesture zoom - Reticle with lens functionality - Bar or FFT line view - User definable graph colors - Create up to 14 snapshots with hold, Leq, or snapshot function - Workspace concept: store all current snapshots and color settings - Snapshot and workspace storage, load and export - iCloud support: move files between local and iCloud storage - Export to .csv oder .png files: share them via Mail, Dropbox, iTunes etc. - Import of .csv files AVAILABLE AS IN-APP PURCHASES: - Frequency response compensations for Mic-W i436 (with individually adjustable sensitivity), i266, i456, i825, i855, iShotgun and the Apple EarPods
SL Bass
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SL Bass is a bass synth and 808 instrument for iPhone and iPad. Explore 146 factory presets and 102 bundled sample variants, then shape each sound with editable pitch and amplitude envelopes, mono and legato modes, glide, saturation and a playable keyboard. Use SL Bass as a standalone instrument or load it as an AUv3 in a compatible host such as GarageBand, Logic Pro for iPad, AUM or Cubasis. The interface adapts to compact iPhone and iPad windows while preserving direct touch control. Features: - 146 factory presets - 102 sample variants - Editable pitch and amplitude envelopes - Mono, legato and glide controls - Saturation and output control - Standalone app and AUv3 instrument - Local processing with no account or subscription SL Bass is an instrument and responds to MIDI notes. It does not process incoming audio as an effect. Support: support@sfoorlabs.com
Screenshots
Verdict
The clearest difference is in-app purchases: SL Bass at none against Analyzer's 10. SL Bass also leads on update cadence (every 6 days vs every 6 weeks). Analyzer's advantage is iOS requirement (12.4 vs 15.0). On price, 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
Analyzer costs $14.99 and SL Bass $14.99 up front. Analyzer sells 10 one-off in-app purchases. SL Bass asks for nothing beyond the download.
Analyzer ships an update every 6 weeks, SL Bass every 6 days. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.
| Parameter | Analyzer | SL Bass |
|---|---|---|
| Price | $14.99 | $14.99 |
| Rating | 2.9 (11 ratings) — better | — |
| Positive reviews | 47.3% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 6 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | DSP Mobile | VIACHESLAV ZHILTSOV |
In-app purchases
Analyzer
- Apple Earphones$2.99
- built-in microphones bundle$2.99
- Apple In-Ear Headphones$2.99
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- Apple EarPods$2.99
- MicW i456$7.99
- MicW i266$7.99
- EDUTIGE EIM-003$7.99
- MicW i436$9.99
- Røde smartLav$9.99
- TASCAM iM2$9.99
SL Bass
No in-app purchases









