エアミル vs Standard Deviation Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
エアミル
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【1】 アプリケーション概要 REX-BTPM25Vは、SHARP製PM2.5センサモジュールを搭載したBluetooth エアクオリティモニターです。大気中を浮遊している花粉・ハウスダスト・タバコの煙等の飛散量を計測し、濃度と6段階のAQIレベルを表示します。 【2】 特徴 ・PM2.5・PM10・VOCを計測し、数値ときれい度を表示 ・温度・湿度・照度・気圧・UVを計測し、数値を表示 ・「今すぐ計測」と一定間隔ごとの「自動計測」に対応 ・自動計測した値をグラフで表示 ・自動計測データをCSVファイルでメール送信 ・設定値を超えた際に本体ブザーやスマホの通知でお知らせ 【3】 動作環境 ●Bletooth4.0+LE(BLE)通信機能を搭載したiOS9.3以降の機種
Standard Deviation Calc
Calculate standard deviation for sample or population data. Input numerical values to find standard deviation, count, sum, mean, variance, and more. Get quick statistical insights with this easy-to-use tool.
- Calculate standard deviation
- Sample or population data
- Compute mean and variance
- Count numerical values
- Sum of numbers
- List of differences
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Use this app to calculate standard deviation for a population or sample data set. Enter your numerical values, and the app will instantly calculate standard deviation, variance, mean, count, sum, and other supporting statistics. Results are estimates for informational purposes only. We are very happy to serve you. If you have any requests, don't hesitate to contact us. - https://www.facebook.com/phan.nhatdang.3/ - phannhatd@gmail.com
Screenshots
Verdict
The clearest difference is in-app purchases: エアミル at none against Standard Deviation Calc's 1. エアミル also leads on review sentiment (33% vs 0%) and update cadence (every 5 days vs every 5 months). On price, ads 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. Standard Deviation Calc sells 1 one-off in-app purchase. エアミル asks for nothing beyond the download.
エアミル ships an update every 5 days, Standard Deviation Calc every 5 months. Both last shipped on October 24, 2026.
| Parameter | エアミル | Standard Deviation Calc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.8 (12 ratings) — better |
| Positive reviews | 33.3% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 12 — better |
| Update frequency | Every 5 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | RATOC Systems, Inc. | Phan Nhat Đang |
Customer experience
エアミル
Standard Deviation Calc
In-app purchases
エアミル
No in-app purchases
Standard Deviation Calc
- Remove ads$1.99
Questions
Is エアミル free?
Is Standard Deviation Calc free?
Do エアミル or Standard Deviation Calc have ads?
Which is updated more often, エアミル or Standard Deviation Calc?
Other comparisons
