Binary Challenge vs Decibel Match
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Binary Challenge
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Convert as many binary numbers you can in 1 minute
Decibel Match
This app helps children learn about decibel levels by challenging them to produce specific sound volumes. It provides feedback on how accurately they match the target dB, with all targets falling between 65 dB and 95 dB.
- Match target decibel levels
- Learn sound-volume relationship
- Track matching accuracy
- Targets between 65-95 dB
- Summary of performance
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Decibel Match is an approachable app to help children understand the relationship between sound and its decibel level. While in use, a certain dB level is presented, encouraging users to produce just the right amount of sound to hit it. Upon completion of each run, a summary is shown to the user, indicating how often they correctly matched the target level. All target values will fall between 65 dB and 95 dB.
Screenshots
Verdict
The clearest difference is update cadence: Decibel Match at every 12 months against Binary Challenge's every 61 months. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Binary Challenge ships an update every 61 months, Decibel Match every 12 months. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.
| Parameter | Binary Challenge | Decibel Match |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 61 months | Every 12 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Ola Kaare Risa | Sean McNeil |
In-app purchases
Binary Challenge
No in-app purchases
Decibel Match
No in-app purchases
Questions
Is Binary Challenge free?
Is Decibel Match free?
Do Binary Challenge or Decibel Match have ads?
Which is updated more often, Binary Challenge or Decibel Match?
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