Comparison

AIROIN vs Quietly

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

Head to head
About

AIROIN

Features
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This is an "airoin" air purifier IoT application. 1. It's easy to control the product from a WiFi connection. 2. You can see the air quality in real time from anywhere where the air purifier is installed. 3. You can view weekly and monthly air condition reports. 4. You can check the filter usage.

About

Quietly

Features
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Quietly is a private journal that lives entirely on your device โ€” no account, no ads, no subscription. Ever. Write freely with a live-formatting editor: headers, bold, bullet lists, and tap-to-check checklists render as you type, so your entries read like a finished page, not raw markdown. Attach photos, videos, and voice notes โ€” or just speak your entry and let on-device transcription turn it into text. Everything happens on your phone; nothing is ever sent anywhere to process it. Organize your way: tag entries, sort them into color-coded notebooks, mark favorites, and see everywhere you've written on a map built from coarse, never-precise locations. A daily reminder and a rotating set of reflective prompts help the habit stick without ever feeling like homework. Want your entries on more than one device? Turn on sync โ€” off by default โ€” and your written entries travel between your devices end-to-end encrypted, using the same private channel Apple's own iCloud Keychain uses. Photos, videos, and voice notes stay local-only, always. Pricing is as simple as the app: write up to 20 entries for free, then unlock unlimited writing with a single $9.99 payment. No monthly fee. No yearly renewal. No subscription, ever โ€” that's not a launch promo, it's the whole design. FEATURES โ€” Live-styled markdown editor: headers, bold, italic, bullets, tap-to-toggle checklists โ€” Multiple entries per day, backdatable, with full edit history preserved โ€” Tags, color-coded notebooks, and favorites โ€” Photo, video, and voice-note attachments, with on-device transcription โ€” Map view of everywhere you've journaled, from coarse location only โ€” Daily reminder and reflective writing prompts โ€” Home-screen widget โ€” Optional, opt-in, end-to-end encrypted iCloud sync for entries โ€” Face ID / passcode lock, Siri & Shortcuts capture โ€” Full export of your own words, any time Your words are yours. Quietly is built so they stay that way.

Screenshots

AIROIN4 screens
Quietly4 screens

Verdict

The call

The clearest difference is in-app purchases: AIROIN at none against Quietly's 1. AIROIN also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Quietly sells 1 one-off in-app purchase. AIROIN asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
AIROIN versus Quietly: the parameters behind the verdict, then further details
ParameterAIROINQuietly
PriceFreeFree
Update frequencyEvery 10 monthsโ€”
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 โ€” better17.0
Further details โ€” not scored
Size10 MB3 MB
Age rating4+4+
DeveloperSHIN-AH ELECTRONICS CO.,LTDSahil Jain

In-app purchases

None

AIROIN

No in-app purchases

1 purchases

Quietly

One-time1
  • Quietly Unlock$9.99

Questions

Is AIROIN free?
AIROIN is free to download, with no in-app purchases.
Is Quietly free?
Quietly is free to download, with in-app purchases available.
Do AIROIN or Quietly have ads?
Neither AIROIN nor Quietly shows ads.

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