SimpliSafe vs. ADT Self Setup

SimpliSafe vs. ADT Self Setup: What's the difference?

SimpliSafe has carved out a strong position in the affordable DIY security space. Its sensor lineup covers both security threats and environmental hazards, and its top-tier plans include live agent intervention — a feature more common among premium providers.

ADT Self Setup brings the ADT name to the DIY market without long-term contracts. It uses wireless equipment that connects with Google Nest cameras and smart devices, making it a natural fit for homeowners already in Google's ecosystem.

What we like about SimpliSafe

• Active Guard technology: The highest-tier plans deploy live security agents alongside AI to actively deter intruders using two-way audio and camera-mounted sirens — a capability typically found only at the premium end of the market.
• Scalable affordability: The low cost of entry and month-to-month service structure make it easy to start with a basic setup and expand the system over time.

What to consider: Professional monitoring costs more than some competing DIY options like Ring and Cove. SimpliSafe is also fully DIY, so proper sensor placement is your responsibility — though the setup process is straightforward.

What we like about ADT Self Setup

• Low entry cost: Affordable equipment and low monthly fees put it within reach for renters and budget-focused homeowners.
• DIY flexibility: The system is designed to be moved and reinstalled easily, which makes it a practical choice for customers who relocate often.

What to consider: You're on your own for installation, troubleshooting and ongoing maintenance — there's no professional support for setup or sensor placement. The level of system support may also fall short of what traditional ADT customers receive.

SimpliSafe vs. ADT Self Setup: System and installation

SimpliSafe and ADT Self Setup both use wireless, DIY-friendly equipment. Here's how their setup experiences compare.

SimpliSafe system and installation

• System type: SimpliSafe runs on a wireless, modular architecture anchored by a base station with a built-in cellular chip and a 24-hour backup battery, keeping the system operational during power outages or tampering attempts.
• Installation options: The system is designed for DIY setup with no tools required. Most sensors attach using adhesive strips. If you prefer professional help, third-party services like OnTech are available, typically starting around $125.

SimpliSafe equipment costs

SimpliSafe offers frequent sales and competitive pricing. Prebuilt packages start around $250 for the basic Foundation kit and go above $700 for larger kits that include multiple cameras and environmental sensors. You can also build a custom system by purchasing components individually.

ADT Self Setup system and installation

• System type: ADT Self Setup uses wireless equipment — including the ADT hub and a range of simple sensors — designed to work alongside Google Nest cameras and smart devices.
• Installation options: The system is built for DIY installation. Customers can set up all components themselves without a technician, enabling fast and flexible deployment.

ADT Self Setup equipment costs

Base kits start around $199 and can be built out further with additional sensors and cameras purchased individually.

SimpliSafe vs. ADT Self Setup: Monitoring plan costs

Both systems let you choose between professional monitoring and self-monitoring.

SimpliSafe monitoring plans

• Standard Monitoring: $21.99 per month. Covers 24/7 police dispatch and cellular backup, but does not include video verification or camera recording.
• Core (formerly Fast Protect): $31.99 per month. Adds visual alarm verification, unlimited camera recording and "Intruder Intervention" for indoor cameras.
• Pro / Pro Plus: $49.99 to $79.99 per month. Unlocks "Active Guard Outdoor Protection," which lets agents watch outdoor cameras overnight (Pro) or around the clock (Pro Plus) and intervene via two-way audio.

Contract commitment: SimpliSafe does not require a long-term contract. All plans run month-to-month, and you can cancel or switch tiers at any time with no penalty.

ADT Self Setup monitoring plans

• Professional Monitoring: Starting at $24.99 per month. Includes 24/7 dispatch, cellular backup and smart home integration through the ADT+ app.
• Self-Monitoring: Free (limited). Lets you view live video and receive alerts, but does not include police dispatch or cellular backup.

Contract commitment: ADT Self Setup does not lock you into a long-term agreement. Professional monitoring is available month-to-month, so you can cancel or pause service as needed.

» COMPARE: SimpliSafe vs. Cove

SimpliSafe vs. ADT Self Setup: Equipment and technology

Compare SimpliSafe's proprietary sensor lineup with ADT Self Setup's deep integration with Google Nest devices.

Reputation on ConsumerAffairs

What SimpliSafe customers say

Customers who left positive reviews for SimpliSafe describe an affordable product that is easy to use and install. Unsatisfied reviewers expressed frustration with some equipment issues, including false alarms or equipment failure. While reviews are mixed, many customers say they like being able to monitor their system remotely through the mobile app.

What ADT Self Setup customers say

ADT Self Setup customers mention the company's knowledgeable staff and competitive prices. They also note the monitoring service has quick notifications. Some customers say they had issues with equipment failure, but overall, customers on ConsumerAffairs say they would recommend the ADT Self Setup service.

Bottom line: SimpliSafe or ADT Self Setup

Choose SimpliSafe if you want no-contract DIY security with room to expand your setup over time. It covers more environmental hazards and includes more proactive monitoring than most DIY competitors, but its premium plans carry a higher price tag than options like Ring or Cove — if basic monitoring is all you need, a simpler system may cost less.

Choose ADT Self Setup if you're already using Google's smart home ecosystem and want to layer in home security. It costs less than a traditional ADT plan and still delivers professional monitoring quality, but setup and maintenance fall entirely on you — if you want more hands-on support, traditional ADT is worth considering.

» MORE: Frontpoint vs. ADT Self Setup