FlowBuddy vs one sec: Which iPhone App Blocker Fits You?

If you keep opening social media without meaning to, both FlowBuddy and one sec can add a pause between the impulse and the app. They take a more practical approach than relying on willpower alone, but they are not identical.

The short answer: choose FlowBuddy if you want a focused iPhone app blocker with one app or website included for free and monthly, yearly, or lifetime upgrade options. Consider one sec if its wider collection of interventions, integrations, browser support, and published research matter more to you.

This comparison is published by FlowBuddy. We have kept it focused on features that can be checked on each product’s official website as of September 2026, rather than making claims about which app will work for everyone.

What FlowBuddy and one sec have in common

Both products are designed to interrupt automatic app opening and help you use your phone more intentionally.

FlowBuddy uses Apple Screen Time-based shielding to block selected apps and websites. When you need access, you can use a short breathing exercise or a mindful 5 or 10-minute unblock instead of removing your setup completely.

one sec describes its approach as adding friction before distracting apps and websites open. Its current feature set also includes app blocking, time limits, intention tracking, healthy alternatives, journaling, and browser support.

Neither approach requires you to give up every useful app forever. The point is to make opening an app a decision rather than a reflex.

Choose FlowBuddy when you want focused iPhone blocking

FlowBuddy’s free plan lets you block one app or website. Its core experience also includes:

• a breathing exercise before access
• allowed schedules for apps you need at certain times
• activity tracking to make repeated opens visible
• no ads
• an on-device setup built around Apple’s Screen Time framework

You can start with a blocklist, choose when access should be allowed, and adjust the friction if your first setup is too strict or too easy to bypass.

FlowBuddy Pro is optional. It adds extra unlock mechanisms, adaptive difficulty, and deeper customization. Current plan details are listed on the FlowBuddy pricing page.

Choose one sec when you want a broader behavior-change toolkit

one sec currently offers more than a single pause screen. Its official site highlights multiple interruption types, strict blocking, intention and emotion tracking, healthy alternatives, journaling, integrations, and support beyond the iPhone through browser tools and other platforms.

It also publishes research about the effect of its interventions. If peer-reviewed evidence, cross-device coverage, or a large selection of behavior-change exercises is your main priority, one sec deserves serious consideration.

That broader feature set can be valuable. It can also be more than you need if your goal is simply to block distracting iPhone apps and add a calm, flexible way to regain temporary access.

The practical differences

Plans and app blocking

FlowBuddy lets you block one app or website in its free plan. FlowBuddy Pro lets you block more and is available through monthly, yearly, or lifetime purchase options.

one sec says its essentials are free, but its plans and feature availability can change. Check its current product and platform pages before choosing based on price alone.

Unlock experience

FlowBuddy offers a breathing exercise and short 5 or 10-minute access windows. The timed window is useful when you genuinely need an app for a message, upload, or quick task but do not want to leave it unblocked for the rest of the day.

one sec emphasizes a larger library of interruptions and reflective exercises. That may suit you if variety keeps the pause effective over time.

Platform scope

FlowBuddy is currently an iPhone app and requires iOS 17 or later. It is intentionally focused on Apple’s Screen Time-based app and website controls.

one sec supports a wider set of platforms and promotes a browser extension on its official site. If the same distraction follows you from phone to desktop, that broader coverage may be important.

Privacy

FlowBuddy says it does not collect personal data and performs its blocking setup on the device. You can read the exact policy on the FlowBuddy privacy page.

Always review the current privacy policy of either product if data handling is a deciding factor for you.

Which app blocker should you try first?

Try FlowBuddy first if you want:

• one app or website included for free
• a focused iPhone-only experience
• breathing and timed unblocks
• allowed schedules instead of all-day blocking
• a simple setup with no ads

Try one sec first if you want:

• a wider range of interruption exercises
• browser and broader platform support
• integrations and reflective tools such as intention tracking
• a product with published research behind its intervention approach

The better app is the one whose friction you will keep enabled. If a blocker is too rigid, you may remove it. If it is too easy to dismiss, it becomes another screen you tap through. Start with the smallest setup that interrupts your most automatic habit, then make it stricter only when needed.

Frequently asked questions

Is FlowBuddy really free?

Yes. FlowBuddy’s free plan lets you block one app or website. FlowBuddy Pro lets you block more and is available as a monthly, yearly, or lifetime purchase.

Can FlowBuddy block websites as well as apps?

Yes. You can add individual websites or broader categories to your FlowBuddy blocklists using its Screen Time-based controls.

Can I temporarily open a blocked app?

Yes. FlowBuddy can give you a mindful 5 or 10-minute unblock, so you can complete a specific task without permanently disabling the blocklist.

Does FlowBuddy work on Android or desktop?

No. FlowBuddy is currently available for iPhone and requires iOS 17 or later. If multi-platform coverage is essential, one sec currently offers broader platform support.