Folderly
Make the inbox your only destination folder
Opal: Screen Time Control
The fun, free Screen Time app to improve your focus.
Updated February 2026
| Folderly | Opal: Screen Time Control | |
|---|---|---|
| Rating | 5.0★ | 4.8★ |
| Reviews | 48 | 5 |
| Pros | 17 | 0 |
| FactScore™ | 84.5 | 37.4 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Folderly — Pros
Email deliverability User-friendly interface Spam prevention Comprehensive solution Robust features Customer support Email outreach optimization Email spam words checker DNS settings management Increased open rates AI-driven approach Best practices recommendations Blacklist monitoring Spam trigger detection Email infrastructure analysis Real-time monitoring Simple setupBoth tools — Pros
—Only in Opal: Screen Time Control — Pros
No unique pros listedOnly in Folderly — Cons
—Both tools — Cons
—Only in Opal: Screen Time Control — Cons
—Details
| Folderly | Opal: Screen Time Control | |
|---|---|---|
| Categories | Email marketing, Marketing automation platforms, Safety and Privacy platforms, AI Infrastructure Tools | Safety and Privacy platforms, Apps for kids |
| Platforms | Web | Web · iOS · Android |
| Became Popular | November 26, 2020 | January 26, 2021 |
| Website | folderly.com | www.opal.so |
Who Should Pick Which?
Choose Folderly if...
- Email deliverability
- User-friendly interface
- Spam prevention
Choose Opal: Screen Time Control if...
- No unique pros listed
With a FactScore™ of 84.5 vs 37.4, Folderly leads in community reception. Folderly uniquely offers Email deliverability and User-friendly interface, while Opal: Screen Time Control stands out for No unique pros listed.
What Users Say
Folderly
I think Folderly is truly changing the game in the email deliverability industry, leaving warmup solutions in the dust 😍 It's more than diagnosing and applying a "patch." This solution fixes deliv...
I've been here since the early days of Folderly, witnessing its growth and development. With our ever-evolving platform, we're now proud to have helped hundreds of clients! Our Customer Success tea...
Proper email deliverability prepares and maintains the entire email infrastructure. Google Startups Fund backs Folderly to create a comprehensive deliverability solution. This includes managing dom...
Opal: Screen Time Control
I really like Opal for helping me stay focused during the workday. But also for the opposite, to being able to relax on the weekend and not being allowed to visit apps like Slack, Gmail etc. Has re...
The difference is Opal actually works. I thought maybe it would be gimmicky but within a few days it forever changed my relationship with my phone. It creates the right amount of friction to keep y...
Love it! 😻 Been using the app for year+ and convinced easily 10+ people to use it. It's a game changer for schools!
Related Comparisons
Frequently Asked Questions
Which is better, Folderly or Opal: Screen Time Control?
Based on FactScore™, Folderly leads with a score of 84.5 vs 37.4. Folderly has a higher rating of 5.0★ compared to 4.8★.
What are the pros of Folderly compared to Opal: Screen Time Control?
Folderly uniquely offers: Email deliverability, User-friendly interface, Spam prevention, Comprehensive solution, Robust features.
What are the pros of Opal: Screen Time Control compared to Folderly?
Opal: Screen Time Control uniquely offers: No unique pros listed.
Is Folderly better rated than Opal: Screen Time Control?
Folderly is rated 5.0★ from 48 reviews. Opal: Screen Time Control is rated 4.8★ from 5 reviews.
What is the FactScore™ of Folderly and Opal: Screen Time Control?
FactScore™ weighs rating and review volume together. Folderly scores 84.5 and Opal: Screen Time Control scores 37.4.
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