Comparison

Mill vs AC911

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

Head to head
About

Mill

Manage your smart kitchen bin, schedule pickups, and access helpful guides on food waste. This app helps you control bin settings, customize schedules, and track returns for a more sustainable kitchen.

Highlights
  • Wi-Fi bin connection
  • Bin settings control
  • Dry & Grind schedule management
  • Kid & Pet lock
  • Food Grounds pickup scheduling
  • Prepaid box ordering
  • Waste guides and tips
Read full description

Meet the Mill app. Set up, manage and control your kitchen bin — all in one place. Setup and pairing – Connect your bin to Wi-Fi – Easily access and control bin settings Customize your bin – Manage your Dry & Grind schedule – Turn the Kid & Pet lock on or off – Give your bin a name of its own Schedule pickups – Schedule a Food Grounds™ pickup or find drop-off locations – Order more prepaid boxes – Track the status of Food Grounds returns Get helpful guides – See what’s ok (and not ok) to add to the bin – Get tips to keep your bin running at its best – Learn more about the impact of your Mill Membership™ The Mill app is designed to use with the Mill kitchen bin, all part of your Mill Membership™

About

AC911

Features
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Reduce the Cost of Ownership AC911 can reduce your HVAC system’s operating costs. It provides precise temperature control, reducing energy usage. This smart thermostat app also ensures you get the services you need when you need them. It incorporates the following innovative features: • Remote monitoring • Predictive maintenance alerts • One-touch appointment booking • Service at the touch of a button A crisp LCD screen ensures all functions are easy to find and use. Is your home not comfortable or are energy costs going up? Use the onscreen service request feature to get prompt assistance from your local HVAC company. Get the Most Out of Your Climate Control System The AC911 app lets you control and monitor temperature, fan speed, and other functions via the main control panel or a smartphone. The future of home comfort and on-demand service, it delivers benefits including: • Smart Notifications: Receive instant notifications on changes in system performance so you can be proactive with maintenance. • Real-Time Monitoring: By monitoring the health of your HVAC system, AC911 can provide predictive maintenance alerts, which can prevent downtime and increase equipment lifespan. • Service Alerts: Receive notifications of service reminders, membership renewals, and more. Even receive custom messages from your HVAC provider. • Diagnostic Tools: An overview of system health and air quality are available at the touch of a button, at no extra cost. • System Health and Air Quality Alerts: If a problem with your climate control system or an indoor air quality issue is detected, you and your service provider will be automatically notified. Quick and Simple Installation The convenience of a AC911 thermostat begins even before you start using it. Swapping out an old unit is simple. A technician removes the old thermostat, mounts the new one, and connects the wiring. They’ll even help you set up the app. The new model’s settings are adjusted to meet your climate control requirements. It provides an instant response so you experience immediate comfort. Settings from the old thermostat instantly transfer over using the serial numbers of both units, so the process is fast, simple, and convenient. Forge an Instant Connection with Your HVAC Provider The AC911 thermostat and app display your HVAC company’s logo onscreen. Their help is available at the touch of a button, so you can put your trust and confidence in a local contractor. It’s not just a modern thermostat. AC911 is a direct link between you and your AC/heating services provider. Be a Part of the NuveNetwork Nuve has partnered with local HVAC companies so you benefit from new services and smart technologies. Real-time access to your system allows contractors to quickly diagnose and resolve system issues. This can result in fewer emergency calls and in-home visits, so you can save time and money. Get Started Today Getting a AC911 thermostat and app is easy. Once you’re ready, a representative will contact you and schedule an appointment. Visit the App Store or contact your HVAC dealer to learn more.

Screenshots

Mill4 screens
AC9114 screens

Verdict

The call

The clearest difference is update cadence: Mill at monthly against AC911's every 3 months. AC911's advantage is iOS requirement (13.0 vs 15.1). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mill ships an update monthly, AC911 every 3 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 8 level
Mill versus AC911: the parameters behind the verdict, then further details
ParameterMillAC911
PriceFreeFree
Rating4.2 (95 ratings) — better—
Positive reviews62.1% of reviews—
Number of ratings95 — better—
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.113.0 — better
Further details — not scored
Size156 MB61 MB
Age rating4+4+
DeveloperMill Industries, LLCNuve Home

In-app purchases

None

Mill

No in-app purchases

None

AC911

No in-app purchases

Questions

Is Mill free?
Mill is free to download, with no in-app purchases.
Is AC911 free?
AC911 is free to download, with no in-app purchases.
Do Mill or AC911 have ads?
Neither Mill nor AC911 shows ads.
Which is updated more often, Mill or AC911?
Mill ships an update monthly, and AC911 every 3 months. Most recently, Mill was updated on November 3, 2026 and AC911 on November 8, 2026.

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