Our verdict: Forth is the better pick if you want help with the urge itself, not only a wall in front of it. Forth blocks the apps and sites you choose on iPhone and gives you a short visual game for the moment an urge hits, for $39.99 a year in the US. BlockerX’s annual plan is $109.92. BlockerX suits you better if you need blocking on computers with an accountability partner.
We make Forth, so we’re biased, but every fact about BlockerX here comes from its own App Store listing and website. If something is out of date, tell us and we’ll fix it.
Why Forth comes out ahead
Help with the urge, not only the block
A blocker stops you from reaching a site. It does nothing for the urge that sent you there. Forth does both: Screen Time blocking, plus a short visual game for the moment the urge hits.
About a third of the price per year
Forth is $39.99 a year in the US. BlockerX’s website lists its annual plan at $109.92 a year (as of October 2026).
No account, and your data stays on your phone
You don’t sign up for anything. Your plan, reflections, progress and blocker choices stay on your iPhone.
Forth and BlockerX side by side
| Feature | Forth | BlockerX |
|---|---|---|
| Price (US, as of October 2026) | $39.99 a year in the US. Eligible new subscribers get a 3-day free trial. | Annual plan $109.92 a year and lifetime $199.97 on its website. The App Store lists Premium lifetime access at $149.99. |
| Platforms | iPhone (iOS 16 or later) | iPhone, Android, Chrome, Windows, macOS |
| Main idea | A short visual game to open when an urge hits | A blocker and filter with accountability-partner reports |
| Blocking | Included, through Apple Screen Time: apps and sites you choose, night schedules, 30-minute breaks | Yes, it’s the core of the app |
| Community | The Room: anonymous, moderated text posts for adults 18+ | Yes |
| Account and data | No account. Your plan and progress stay on your phone. | Account-based |
| Faith | Not religious | Not religious |
| App Store rating (US) | 5.0 from 6 ratings (launched September 2026) | 4.4 from 8,345 ratings |
Checked October 20, 2026 against each app’s US App Store listing and website. Prices change and vary by country; the price on each app’s paywall is the one that counts.
When BlockerX might suit you better
You need blocking on Windows, Mac or Chrome too, or you want an accountability partner to get reports and alerts.
How Forth works
When an urge hits, you open a Reset: a short, timed visual game where you fit shapes, match patterns, or rebuild a painting. There are no scores and no failing. Here’s the research behind it, and what else helps when an urge hits.
A quick assessment builds your plan. Forth can block the apps and sites you choose through Apple’s Screen Time, and it keeps your plan and progress on your phone. There’s no account.
Sources
- BlockerX: BlockerX:Adult Content Blocker on the App Store and blockerx.net
- Forth: Forth: Quit Adult Content on the App Store
- Skorka-Brown, Andrade, Whalley and May, “Playing Tetris decreases drug and other cravings in real world settings,” Addictive Behaviors, 2015.
Questions
Is Forth a porn blocker?
Yes, and more. Forth blocks the apps and sites you choose through Apple’s Screen Time, and it also gives you a short visual game for the moment an urge hits, plus a plan. BlockerX is mainly a blocker, and it also runs on computers.
Can I use BlockerX and Forth together?
Yes. You could use BlockerX on your computer and Forth on your iPhone. On the iPhone, pick one app to handle Screen Time blocking so the rules don’t overlap.