Comparison

Spectroscope vs KeepWaves

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Spectroscope

Features
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

Spectroscope1 screens
KeepWaves4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

KeepWaves is free to download; Spectroscope costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 7 level
Spectroscope versus KeepWaves: the parameters behind the verdict, then further details
ParameterSpectroscopeKeepWaves
Price$14.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 days — betterEvery 19 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size25 MB15 MB
Age rating4+4+
DeveloperLEONARDO TAZZINIArla Services

In-app purchases

None

Spectroscope

No in-app purchases

None

KeepWaves

No in-app purchases

Questions

Is Spectroscope free?
Spectroscope costs $14.99, with no in-app purchases.
Is KeepWaves free?
KeepWaves is free to download, with no in-app purchases.
Do Spectroscope or KeepWaves have ads?
Neither Spectroscope nor KeepWaves shows ads.
Which is updated more often, Spectroscope or KeepWaves?
Spectroscope ships an update every 5 days, and KeepWaves every 19 months. Most recently, Spectroscope was updated on November 8, 2026 and KeepWaves on October 30, 2026.

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