4.6
Block sites and apps on every device from one session list.
Hard blocking across iPhone, Android, and Mac.
Best for serious, cross-device app blocking
Reviewed 16 September 2026 · Prices checked the same day
4.6
88K reviews
Opal blocks across iPhone, Android, and Mac together, with 87,903 ratings. It is $19.99 a month or $99.99 a year, with a separate student SKU listed at $9.99 weekly, checked 16 September 2026.
A hundred dollars a year is a lot to spend on not opening Instagram, and Opal does not publish what the free version withholds. Check the student SKU before paying weekly by accident.
Pricing
subscription
$19.99/mo or $99.99/yr; student SKU $9.99 weekly
Free version
Not published.
Platforms
iOS · Android · macOS
The grown-up option. Worth it if weaker tools have already failed. Overkill if Forest already works.
Checked 2026-09-16
| Model | Subscription |
|---|---|
| What free actually includes | Not published. |
| Cheapest paid tier | $19.99/mo or $99.99/yr; student SKU $9.99 weekly |
| Student pricing | Separate student SKU listed at $9.99 weekly — read the term length before buying |
Links from StudyApps include ref=studyapps.
Not published. Checked 16 September 2026.
Cheapest paid plan: $19.99/mo or $99.99/yr; student SKU $9.99 weekly. Student deal: Separate student SKU listed at $9.99 weekly — read the term length before buying. Prices checked 16 September 2026.
Serious, cross-device app blocking
Expensive next to timers
Block sites and apps on every device from one session list.
Windows and Mac blocker that is hard to uninstall mid-session.
Plant a tree. It dies if you pick the phone up.