Know how many pellets you have left.
And whether they’ll last the winter.
Hopper, storage, consumption and a winter forecast — in one place.
Your records stay on your phone. No account, no ads. No account, no ads.
How many pellets are left? Will they last the season?
You fill the hopper by the bag, storage keeps shrinking, and winter won’t say how long it will last. Pellet Log keeps every fill and every delivery and works out your stock, consumption and forecast from them.
Everything stays on your phone
No account, no ads, no tracking.
Works offline
Records, calculations and the average-use forecast work offline. You only need a connection for the weather.
Charts and tables
Consumption, fills and deliveries in charts and tables, by period.
Knows how cold it is
The forecast accounts for the weather outside, not just your average use.
Hopper, storage, consumption and winter in one place
Your hopper and stock at a glance
A ring with the fill percentage, kilograms, bags and roughly how many days it lasts. Next to it — how many days of heat the hopper and storage hold together.
- Daily use since the last full fill, and the season average
- Recent fills with kg/day and the days between them
- Outdoor weather and a 5-day forecast
Your storage, stacked in bags
See how full it is, how many bags are left and how many days they last. Every delivery keeps the amount, price, supplier and pellet type.
- Deliveries, fills and stock adjustments
- Price per bag, cost per week, cost for the season
- History by season
Will your stock last until the end of the season?
Pellet Log projects your stock for a mild, average and cold winter and tells you how many bags to buy — before storage runs low.
- “How much to buy” for next season
- A reminder when stock drops below your threshold
- Reminders at the start and end of the season
Consumption against the cold outside
Charts of consumption (kg/day), fills and money. Compare two winters, two suppliers or two pellet types.
- Compare two periods
- Thermostat journal by room
- Pause the boiler (for a repair or any other reason)
Three steps, then just log
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Describe your boiler and storage
Hopper and storage capacity, bag weight and your location — for a local weather forecast.
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Log your fills
Every hopper fill and every delivery — in bags or kilograms, in seconds.
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See your stock and forecast
How much is left, for how many days, what it costs and whether it will last the winter.
Frequently asked questions
Do I need an account?
No. Everything you enter stays on your phone. No account, no ads, no tracking.
Does it work offline?
Yes. Records, calculations and the average-use forecast work offline. The internet is only needed for the weather.
What personal data leaves my phone?
Only your location’s coordinates: to Open-Meteo for the weather (plus the text, if you search for a place by name), and to BigDataCloud for the place name. Nothing else.
Can I move my data to a new phone?
Yes. Back up everything, share or save the backup, and restore it on the new phone. There’s also an export for Excel (CSV).
Is there an iPhone version?
For now, Pellet Log is Android only.
How much does it cost?
Your first heating season is free. After that, Pellet Log costs €10 a year.
This winter, go by the numbers.
Pellet Log for Android. No account, no ads.