Blue Days vs Mollzometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue Days
Get highly accurate, hyperlocal weather forecasts with a clean interface. View current conditions, detailed 7-day forecasts with temperature gradients, and hour-by-hour precipitation.
- Hyperlocal weather accuracy
- Current conditions and descriptions
- 7-day forecast with temperature gradients
- Hour-by-hour precipitation slider
- Customizable icon and color themes
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Blue Days gives you highly accurate, hyperlocal weather in a simple, well-designed interface. It uses dozens of high-accuracy weather sources to provide precise weather information at your location or wherever you search. Get current conditions and a 7-day forecast, complete with custom backgrounds. The 7-day forecast includes a color gradient indicating the range of temperatures. Features: • Current Weather Conditions and Descriptions. • Detailed Forecast View, Showing: Temperature, Precipitation, Wind, Sunset, and Sunrise. • Precipitation Slider Bar showing Hour-by-Hour Precipitation for a Selected Day of the Week. • Precipitation Chance along a Horizontal Bar for the Selected Day. • Icons and Colors Themes that change for every Weather Condition. I’d love to hear your feedback! Please take a moment to leave a review.
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.
- Customizable active hours for forecasts
- Weather filtered to your daily schedule
- Personalized clothing recommendations
- Customizable temperature thresholds
- Concise daily weather briefings
- Smart weather alerts
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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
Verdict
The clearest difference is rating: Mollzometer at 5.0 against Blue Days's 4.2. Mollzometer also leads on in-app purchases (none vs 1) and update cadence (weekly vs fortnightly). Blue Days's advantage is ratings volume (238 vs 1) and iOS requirement (17.2 vs 26.4). 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. Blue Days sells 1 in-app purchase, starting at $1.99 per year. Mollzometer asks for nothing beyond the download.
Mollzometer holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Blue Days has 238 ratings behind it against 1, so its average is the more settled of the two.
Blue Days ships an update fortnightly, Mollzometer weekly. The most recent releases landed on October 21, 2026 and October 6, 2026 respectively.
| Parameter | Blue Days | Mollzometer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (238 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 44.1% of reviews | — |
| Number of ratings | 238 — better | 1 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.2 — better | 26.4 |
| Further details — not scored | ||
| Size | 22 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | James Bevins | John Lawniczak |
Customer experience
Blue Days
Mollzometer
In-app purchases
Blue Days
- One Year Subscription7 Days trial$1.991 Year
Mollzometer
No in-app purchases









