Comparison

Weathercaster vs Mollzometer

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

Mollzometer

This weather app focuses on the forecast for the specific hours you are active, filtering out irrelevant weather events. It provides personalized clothing suggestions based on your temperature preferences and delivers concise daily weather briefings.

Highlights
  • Customizable active hours for forecasts
  • Weather filtered to your daily schedule
  • Personalized clothing recommendations
  • Customizable temperature thresholds
  • Concise daily weather briefings
  • Smart weather alerts
Features
Read full description

Most weather apps tell you it rained. Mollzometer tells you if it rained on you. Set your hours. Get your forecast. Mollzometer filters the entire day's weather down to the hours you're actually outside — your commute, your workday, your run. No more checking the forecast and realizing the "morning rain" was at 5am while you were asleep. Your Hours, Your Forecast Tell Mollzometer when you wake up, when you commute, and when you're home. It does the rest — surfacing only the weather that actually affects your day. Know What to Wear, Every Morning Mollzometer suggests exactly what to wear based on the coldest, wettest moment inside your active hours. Not the whole day — just your day. And if the morning and evening feel completely different, it'll tell you that too. Your Wardrobe, Your Rules You decide what 55°F means to you. Set your own temperature thresholds for every layer — t-shirt, sweater, coat, heavy coat — and Mollzometer will match its suggestions to how you actually dress. Smart Alerts That Mean Something Get a single morning briefing built around your hours. No noise, no spam — just "Sweater plus raincoat today, rain likely at 3pm" delivered before you walk out the door.

Screenshots

Weathercaster4 screens
Mollzometer3 screens

Verdict

The call

The clearest difference is in-app purchases: Mollzometer at none against Weathercaster's 4. Mollzometer also leads on rating (5.0 vs 4.7). Weathercaster's advantage is ratings volume (51 vs 1) and iOS requirement (18.0 vs 26.4). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Weathercaster sells 4 in-app purchases, starting at $1.99 per month. Mollzometer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mollzometer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Weathercaster has 51 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Weathercaster ships an update every 2 weeks, Mollzometer weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Weathercaster versus Mollzometer: the parameters behind the verdict, then further details
ParameterWeathercasterMollzometer
PriceFreeFree
Rating4.7 (51 ratings)5.0 (1 ratings) — better
Positive reviews95.6% of reviews—
Number of ratings51 — better1
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.0 — better26.4
Further details — not scored
Size50 MB9 MB
Age rating4+4+
DeveloperCatspaw Systems LLCJohn Lawniczak

Customer experience

Weathercaster

All ratings51 ratings
Positive96.1%
Neutral0.0%
Negative3.9%
Written reviews45 reviews
Positive95.6%
Neutral0.0%
Negative4.4%

Mollzometer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Weathercaster

Reported bugs

1 issue
  • Occasional crashes or freezes

Requested features

2 requests
  • Free trial period
  • More affordable pricing options

Mollzometer

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
None

Mollzometer

No in-app purchases

Questions

Is Weathercaster free?
Weathercaster is free to download, with in-app purchases available.
Is Mollzometer free?
Mollzometer is free to download, with no in-app purchases.
Which has better reviews, Weathercaster or Mollzometer?
Mollzometer is rated higher. Weathercaster averages 4.7 out of 5 from 51 ratings, while Mollzometer averages 5.0 from 1 ratings.
Do Weathercaster or Mollzometer have ads?
Neither Weathercaster nor Mollzometer shows ads.
Which is updated more often, Weathercaster or Mollzometer?
Weathercaster ships an update every 2 weeks, and Mollzometer weekly. Most recently, Weathercaster was updated on October 30, 2026 and Mollzometer on October 31, 2026.

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