Comparison

Mechanical Sound ID vs Pæan Ring

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

Head to head

About

Mechanical Sound ID

Features

Read full description

Identify machines from operating sounds ※Identified machines ・fan >air conditioner, mechanical fan ・vacuum cleaner ・printer ・microwave oven ・telephone ・hair dryer etc.

About

Pæan Ring

Features

Read full description

Paean: Your Health, Your Data. Unlock the full potential of your Paean Ring. We combine advanced biometric tracking with uncompromising privacy standards. Monitor: HR, Sleep, and Steps around the clock. Analyze: View trend lines and detailed breakdowns of your daily vitality. Protect: Built from the ground up to keep your personal health data secure and private.

Screenshots

Mechanical Sound ID1 screens

Pæan Ring4 screens

Verdict

The call

The clearest difference is ads: Pæan Ring at none against Mechanical Sound ID's shown. Pæan Ring also leads on update cadence (every 4 days vs fortnightly). Mechanical Sound ID's advantage is iOS requirement (15.8.3 vs 26.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mechanical Sound ID ships an update fortnightly, Pæan Ring every 4 days. The most recent releases landed on August 3, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 3 level

Mechanical Sound ID versus Pæan Ring: the parameters behind the verdict, then further details
Parameter	Mechanical Sound ID	Pæan Ring
Price	Free	Free
Update frequency	Fortnightly	Every 4 days — better
Ads	Yes	No — better
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	15.8.3 — better	26.0
Further details — not scored
Size	36 MB	7 MB
Age rating	4+	4+
Developer	Hideaki Uchikoshi	Shanghai Zero One Intelligence Ltd.

In-app purchases

None

Mechanical Sound ID

No in-app purchases

None

Pæan Ring

No in-app purchases

Questions

Is Mechanical Sound ID free?

Mechanical Sound ID is free to download, with no in-app purchases.

Is Pæan Ring free?

Pæan Ring is free to download, with no in-app purchases.

Do Mechanical Sound ID or Pæan Ring have ads?

Mechanical Sound ID shows ads; Pæan Ring does not.

Which is updated more often, Mechanical Sound ID or Pæan Ring?

Mechanical Sound ID ships an update fortnightly, and Pæan Ring every 4 days. Most recently, Mechanical Sound ID was updated on August 3, 2026 and Pæan Ring on September 18, 2026.