GridMix vs Provision
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GridMix
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Check the current mix of the UK Energy Grid using the app or the widgets to keep updated with the carbon intensity of the grid! All data from the UK's National Energy System Operator, via their Carbon Intensity API. Find out more: https://carbonintensity.org.uk
Provision
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Most people have no idea how long they could keep going if the power went out, the water stopped, or they had to leave the house. Provision answers that in a number. Add what you already own — the tins in the cupboard, the bottled water under the stairs, the gas canister in the shed. Scan a barcode or type a name. Provision counts it against the people you actually feed, not a national average, and tells you how many days you have. It counts the thing that runs out first. A fortnight of food and two days of water is two days. That is exactly the sort of thing worth knowing in advance. WHAT IT DOES • Counts food, water and fuel separately, in days • Works out what to buy next — the thing that moves the number most, for the least money • Tracks expiry dates and tells you before things go off • Scans barcodes • An equipment checklist with the reason attached, so it reads as advice rather than a shopping list • Sends your dates to your calendar • Exports everything you have entered, whenever you want it • Situations — the same shelf judged against a power cut, a water outage, or leaving on foot • A go bag — a second kit measured against 72 hours away from home, kept separate from the house • Nutrition — protein, fat, carbs and salt per day from your actual shelf, not just calories FREE. THE WHOLE APP. Provision is free. The whole app, nothing held back. We'll keep it that way for as long as we can, as a small team. If that ever changes you'll hear it from us first, and what you've added stays yours. HONEST ABOUT WHAT IT IS Provision sells nothing itself. Where it suggests a product it says so, and links to Amazon, where we may earn a commission. That never changes what the app tells you to buy — the list comes from your own store and your own target, and the link is added at the end. Privacy: https://provisionapp.co.uk/privacy Terms: https://provisionapp.co.uk/terms
Screenshots
Verdict
The clearest difference is iOS requirement: Provision at 15.0 against GridMix's 18.2. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | GridMix | Provision |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 5 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Hector Forrester | BATHBLOOPS LTD |
In-app purchases
GridMix
No in-app purchases
Provision
No in-app purchases







