Decibels vs Spino
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Decibels
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Decibels is a sound level meter that remembers what you measured. Point it at the noise, press start, press stop β and the reading stays. Average (Leq), maximum, minimum, duration and the full level trace, saved automatically, every time. No account, no subscription, and nothing leaves your phone unless you send it. MEASURE β’ A-weighted (dBA) or unweighted, per IEC 61672 β’ Fast (125 ms) and Slow (1 s) time weighting β’ LCpeak for impulses β alarms, slams, machinery β’ Live level trace with a ten-second window β’ Calibration offset for matching a reference meter KEEP β’ Every measurement saved automatically β’ History with the full trace of each run β’ CSV export carrying the settings it was taken under Decibels stores your measurements on your device and nowhere else. It records no audio β only the level β and asks for no location, no account and no identifiers. A note on accuracy: a phone microphone is not a calibrated instrument. Decibels is honest about that. Use the calibration offset against a reference meter for absolute readings, and treat it as an excellent relative instrument otherwise.
Spino
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Spinny makes decision-making fun again. Add your options β whether itβs lunch, movies, or weekend plans β and spin the colorful wheel to get your answer instantly. Perfect for indecisive moments with friends, family, or just yourself. Features β’ Simple and clean design β’ Smooth spinning animation β’ Save and reuse your favorite lists
Screenshots
Verdict
The clearest difference is in-app purchases: Spino at none against Decibels's 1. Spino also leads on update cadence (weekly vs every 5 months) and iOS requirement (15.6 vs 18.0). On price, ads and device support 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. Decibels sells 1 one-off in-app purchase. Spino asks for nothing beyond the download.
Decibels ships an update every 5 months, Spino weekly. Both last shipped on October 28, 2026.
| Parameter | Decibels | Spino |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Weekly β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.6 β better |
| Further details β not scored | ||
| Size | 6 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Merano Studio Limited | Weichen Cheng |
In-app purchases
Decibels
- Leave a Tip$0.99
Spino
No in-app purchases









