Comparison

Weathercaster vs RainApp

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

Head to head
About

Weathercaster

Visualize weather patterns with detailed charts that show not just if an event will occur, but when. This app offers a minimalist interface powered by Apple WeatherKit, providing clear insights into temperature, wind, sun, clouds, and precipitation timing. It's ideal for outdoor enthusiasts and professionals who need to understand weather trends at a glance.

Highlights
  • Chart-based weather visualization
  • Detailed temperature, wind, and precipitation timing
  • Offline forecast access
  • Home Screen widget and Apple Watch app
  • Past weather history alongside forecasts
  • Shareable forecast charts
  • Hurricane tracking
Features
Read full description

Weathercaster is a better way to look at the weather - using charts. Chart based forecasts are advantageous when you want to know not just if a weather event will happen on a given day, but when that event will start and stop. Using charts also allows you to know more at from a quick glance (temperature, wind, sun, clouds, rain, snow, and the timing of the weather). Weathercaster is the best way to view weather forecasts. Powered by Apple WeatherKit and designed with elegant minimalism, Weathercaster strips away clutter and shows exactly what you need to know using easy-to-read charts. We think everyone can benefit from seeing weather data in this format, but it’s especially useful to boaters, sailors, hikers, and adventurers who navigate by understanding weather trends. Our charts condense temperature, cloud cover, rain, snow, lightning, and wind speed into a format that is easy to read at a glance. Privacy first. Always: We take privacy very seriously and have implemented the most stringent privacy policy possible. We use no third-party analytics, no ads, no trackers, and we only use your location when you specifically ask us to. Features: • Fine-tune any forecast location using a map—including remote spots like mountain summits, wilderness areas, and offshore locations. • Charts powered by WeatherKit showing temperature, cloud cover, rain, snow, storm probabilities, and wind speeds. In the US, WeahterKit uses models and data from NOAA and NWS. • View precipitation amounts for the past 12–48 hours, and see expected rainfall from upcoming storms. • View up to 48 hours of past weather history alongside forecasts to spot trends. We believe its always useful to see both forecasts and observations. • Home Screen widget and Apple Watch app are available for quick, glanceable access to forecasts. • Forecasts are available offline - you can download a forecast before your adventure and see it while you're off the grid. • Share forecast charts with friends and export to CSV format to support your professional workflow. • Quickly add any hurricane currently being tracked by the National Hurricane Center (NHC). Weathercaster is a constantly evolving platform. We’re actively building new features and would love for you to join us. Share your thoughts and ideas—we’re always listening and improving. Our app is free to use, but you can add more locations and access more features if you upgrade to our Pro mode. Privacy Policy: https://catspaw-systems.com/PrivacyPolicies/WeathercasterPrivacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

RainApp

Features
Read full description

Rain, explained simply. RainApp helps you answer the question that matters most: Will it rain? Instead of overwhelming you with dozens of charts and weather metrics, RainApp focuses on clear, beautiful and easy-to-understand forecasts. See rain moving over your location, explore how conditions change during the next 12 hours and receive notifications before the weather changes. Features Rain timeline Move an interactive slider to instantly see how rain clouds move over your location during the next 12 hours. Weather at a glance See everything important in one place: • current temperature • feels like • wind • humidity • a short weather summary Daily & extended forecasts Browse: • yesterday’s hourly weather • today’s forecast • the next 12 days without switching between multiple screens. Smart notifications Stay ahead of weather changes with simple, human-friendly alerts. Receive notifications about: • tomorrow’s weather • your week ahead • sudden rain • strong winds • significant weather changes Instead of raw numbers, RainApp explains what the forecast actually means. Examples: Tomorrow will be 6° warmer than today Heavy rain is expected within the next hour A cooler week is ahead Apple Watch Companion Unlock the companion Apple Watch app and keep weather on your wrist. • explore rain clouds using the Digital Crown • browse the next 12 hours • view hourly forecasts • receive weather notifications • instantly spot rainy hours Designed to be simple No clutter. No complicated charts. Just the weather information you’ll actually use.

Screenshots

Weathercaster4 screens
RainApp4 screens

Verdict

The call

The clearest difference is update cadence: Weathercaster at every 2 weeks against RainApp's every 2 months. Weathercaster also leads on iOS requirement (18.0 vs 26.5). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Weathercaster sells 4 in-app purchases, starting at $1.99 per month and RainApp sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Weathercaster ships an update every 2 weeks, RainApp every 2 months. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Weathercaster versus RainApp: the parameters behind the verdict, then further details
ParameterWeathercasterRainApp
PriceFreeFree
Rating4.7 (51 ratings) — better—
Positive reviews95.6% of reviews—
Number of ratings51 — better—
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS18.0 — better26.5
Further details — not scored
Size50 MB18 MB
Age rating4+4+
DeveloperCatspaw Systems LLCKsenia Trifonova

Bugs and requests

Weathercaster

Reported bugs

1 issue
  • Occasional crashes or freezes

Requested features

2 requests
  • Free trial period
  • More affordable pricing options

RainApp

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Weathercaster

Subscriptions3
  • Monthly Pro Subscription$1.991 Month
  • Six Month Pro Subscription$6.996 Months
  • Annual Pro Subscription$9.991 Year
One-time1
  • Lifetime Pro Upgrade$24.99
1 purchases

RainApp

One-time1
  • Apple Watch Access$3.99

Questions

Is Weathercaster free?
Weathercaster is free to download, with in-app purchases available.
Is RainApp free?
RainApp is free to download, with in-app purchases available.
Do Weathercaster or RainApp have ads?
Neither Weathercaster nor RainApp shows ads.
Which is updated more often, Weathercaster or RainApp?
Weathercaster ships an update every 2 weeks, and RainApp every 2 months. Most recently, Weathercaster was updated on November 4, 2026 and RainApp on October 28, 2026.

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