Spectroscope vs KeepWaves
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spectroscope
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Professional Spectral Analysis in Your Pocket Transform your smartphone into a powerful, calibrated optical spectrometer. Designed for science educators, researchers, and hobbyists, "Spectroscope" bridges the gap between educational tools and laboratory instrumentation. Connect a clip-on spectroscope hardware and start capturing, calibrating, and analyzing light spectra in real-time. NEW IN VERSION 2.0: • Reference Mode (REF): Perform comparative analysis seamlessly. Freeze a baseline spectrum (e.g., White Light) and compare it against live samples in real-time. Perfect for demonstrating Absorbance and Transmittance in the classroom without exporting data. • Multi-Camera Support: Fully optimized for modern devices. Select the specific lens (Telephoto, Ultra-Wide, Front/Back) that best fits your mounting setup directly from Settings. KEY FEATURES: • Precision Data Export: Generate scientific-grade CSV files with 4-decimal precision for both Wavelength (nm) and Intensity • Easy Calibration: Calibrate accurate X-axis (nanometers) using standard CFL lamps (Mercury peaks) or define your own custom reference points. • Live Analysis: Visualize data with the integrated high-contrast chart, featuring peak detection and adjustable exposure/focus locks. • Universal Compatibility: Works with any DIY or commercial spectroscope with a smartphone mount. APPLICATIONS: • Physics & Astronomy: Analyze emission lines of light sources and stars. • Chemistry Labs: Measure absorbance of colored solutions using the new REF workflow. • Gemology & Field Work: Portable analysis anywhere, anytime. Download the complete User Manual with step-by-step lab workflows here: https://www.majinsoft.com/apps/spectroscope/Spectroscope_User_Manual.pdf
KeepWaves
Transform audio recordings into visual art with customizable waveform visualizations. Capture high-quality sound, apply effects, and share your unique acoustic memories as audio, images, or videos. Preserve precious sounds in a way that engages both sight and hearing.
- Customizable waveform visualizations
- High-quality audio recording
- Real-time visualization
- Advanced audio processing
- Multiple export options (audio, image, video)
- Intuitive organization and search
- Interactive playback
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Record sound and turn it into a visual memory with KeepWaves. Capture audio, explore its waveform and customize how your recording looks when you share it. RECORD AND PLAY Record with adjustable sensitivity and gain. Play saved audio with waveform scrubbing and playback controls. MAKE IT YOURS Customize waveform colors, backgrounds and visual settings. Adjust your audio with the available processing controls and select the range you want to export. SAVE AND SHARE Organize and search saved recordings. Export audio, waveform images or videos to share through the apps you choose. KeepWaves Pro is required to make new recordings. Existing recordings remain available to play and export without an active subscription. Monthly and yearly subscriptions are available. Keep your own backups of important recordings. SUBSCRIPTION DETAILS The store shows the price, billing period and any eligible introductory offer before purchase. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled before the renewal deadline shown by the store. Manage or cancel through your store subscription settings. Restore Purchases checks eligible existing access. Terms of Use: https://keepwaves.com/terms Privacy Policy: https://keepwaves.com/privacy
Screenshots
Verdict
The clearest difference is price: KeepWaves at Free against Spectroscope's $14.99. Spectroscope's advantage is update cadence (every 5 days vs every 19 months). On ads, in-app purchases, device support and iOS requirement 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
KeepWaves is free to download; Spectroscope costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Spectroscope ships an update every 5 days, KeepWaves every 19 months. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.
| Parameter | Spectroscope | KeepWaves |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days — better | Every 19 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 25 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | LEONARDO TAZZINI | Arla Services |
In-app purchases
Spectroscope
No in-app purchases
KeepWaves
No in-app purchases
Questions
Is Spectroscope free?
Is KeepWaves free?
Do Spectroscope or KeepWaves have ads?
Which is updated more often, Spectroscope or KeepWaves?
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