Comparison

Barometer Plus vs 河川地図

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

Head to head
About

Barometer Plus

This app utilizes your device's barometer sensor to measure air pressure and altitude, helping you monitor and predict short-term weather changes. It also allows users to track how pressure impacts mood and optimize fishing conditions. The app offers extensive customization and historical data tracking.

Highlights
  • Barometer and altimeter with analog display
  • Temperature and humidity display
  • Pressure and altitude unit conversion
  • GPS and METAR calibration
  • Relative altitude measurement
  • Pressure change notifications
  • Pressure tracking and history graph
Features
Currently charting
Read full description

Barometer Plus app measures air pressure and altitude using your device's built-in barometric pressure sensor. Because air pressure changes usually indicate a weather change, you can use this app to monitor and predict short-term weather variations. People suffering from migraine, headaches, or joint pain can monitor how barometric pressure impacts their mood. Fishermen can monitor the atmospheric pressure for right-time fishing. FEATURES: • The app contains a barometer and altimeter with a personalization graphic in classic analog style. It also displays the current temperature and humidity. • Display barometric pressure (sensor value) or mean sea level pressure (MSLP - value used in weather forecast services or stations). • Units support for pressure: mb, inHg, kPa, atm, Torr, psi, hPa, mmHg. Units for altitude: meter, feet. • Calibrate the barometer using altitude/location from the GPS. Calibrate the altimeter using the nearest airport information/METAR, or manually enter the QNH of the nearest airport. Offset sensor output value. • Measure the height (building/mountain/hiked/climbed) using the "Relative Altitude" feature (can be enabled in the app's Settings). • Notification about pressure change. "Notification custom rule" for you to define how and when the app sends notifications. Notify when air pressure changes indicate that extreme or worse weather may occur. • "Pressure Tracking" and "History Graph" require "Background App Refresh" or "Always Location Service" with "Exact update interval" enabled. • "My Area" allows you to define your frequent stay places, and the app tracks air pressure with location data. • Export history to CSV format and Today widget. • This app is the digital version compared with an aneroid or mercury barometer and can be adjusted to MSLP with additional features. CUSTOMIZABLE: You can change your barometer/altimeter appearance with: • Seven different housing colors. • Black, white or blue disk background. • Four different app backgrounds. • Three different types of needles. • Marker needle for easily monitor. • Dark or light Today widget theme. NOTES: • App only works on devices with a barometer sensor, such as iPhone 6/6s/7/8/X/11/12/13 (including Plus models), iPad Mini 4/Air 2/Pro, or later. • Weather icons on the dial: This only shows the air pressure trend like in an analog barometer. • Each time your device reboots, open the app for tracking with the "Exact update interval" feature work. • You may take the phone/tablet far away from computers, cables, and other magnetic sources to get accurate results. • This app is Pro / Premium version of the "Barometer Plus - Altimeter" app, only difference is all feature unlocked and no ads. If you already use the "Barometer Plus - Altimeter" app and purchased in-app, do not need to purchase this again. We welcome your ideas and suggestions - please email us at: support+barometer@pvdapps.com. Follow our official Facebook page: https://www.facebook.com/barometerplus/ or Twitter account: https://twitter.com/pvdapps.

About

河川地図

Features
Read full description

現在地の地図、雨量、水質、観測所、洪水、土砂、住所を表示します。国土交通省、国土地理院のデータを利用しています。 1.[地図]は、通常の地図で、右上に、GPSセンサのスイッチがあります。GPS ONでGPSセンサが有効になり、現在地が画面中央になります。GPS OFFでGPSセンサが無効になり、地図を自由に動かすことができます。 共有ボタン(□に↑)をタッチすると現在地の地図のURLと住所をメールで送れるので、どこにいるかを家族や友人に知らせることができます。緊急時の連絡用として、活用してください。登録ボタン(〇に+)をタッチすると現在地をデータベースに登録することができます。 2.[雨量]は、雨量情報を表示します。 3.[水質]は、観測所における水質や水温を表示します。 4.[観測所]は、水位、雨量、水質、河川カメラの場所を表示します。 5.[洪水]は、洪水・内水のハザードマップと避難所を表示します。 6.[土砂]は、土砂災害のハザードマップと避難所を表示します。 7.[住所]は、現在地の緯度、経度、郵便番号、都道府県、市区町村、町、丁目、番地、号・建物、市区町村のヨミ、町のヨミを表示します。 8.[一覧]は、データベースに登録されている住所の一覧です。登録された住所は日時、緯度、経度、住所で並び替えできます。削除ボタン(〇に-)にタッチするとデータを削除することができます。登録された住所から、地図等を表示することができます。国土地理院地図等は端末の標準ブラウザで表示します。DBエクスポートで、登録された住所をJSON形式でバックアップし、DBインポートで、復元できますので、機種変更時に利用してください。

Screenshots

Barometer Plus4 screens
河川地図4 screens

Verdict

The call

The clearest difference is review sentiment: Barometer Plus at 59% against 河川地図's 0%. Barometer Plus also leads on update cadence (every 11 days vs every 13 months) and chart position (#29 vs unranked). 河川地図's advantage is price ($1.99 vs $3.99). On 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

CostPrice · In-app purchases · Ads · Monetization

Barometer Plus costs $3.99 and 河川地図 $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Barometer Plus ships an update every 11 days, 河川地図 every 13 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 6 level
Barometer Plus versus 河川地図: the parameters behind the verdict, then further details
ParameterBarometer Plus河川地図
Price$3.99$1.99 — better
Rating4.0 (5 ratings) — better—
Positive reviews59.0% of reviews — better0.0% of reviews
Number of ratings5 — better—
Update frequencyEvery 11 days — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#29 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size38 MB54 MB
Age rating4+17+
DeveloperNgo NaMasahiro Tomosada

Customer experience

Barometer Plus

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews78 reviews
Positive59.0%
Neutral10.3%
Negative30.8%

河川地図

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Barometer Plus

No in-app purchases

None

河川地図

No in-app purchases

Questions

Is Barometer Plus free?
Barometer Plus costs $3.99, with no in-app purchases.
Is 河川地図 free?
河川地図 costs $1.99, with no in-app purchases.
Do Barometer Plus or 河川地図 have ads?
Neither Barometer Plus nor 河川地図 shows ads.
Which is updated more often, Barometer Plus or 河川地図?
Barometer Plus ships an update every 11 days, and 河川地図 every 13 months. Most recently, Barometer Plus was updated on October 29, 2026 and 河川地図 on October 30, 2026.

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