Nereus vs ScreenBuddy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nereus
This app helps you focus by blocking distracting applications on your iPhone during dedicated work sessions. It syncs with a desktop application to automatically lock down your phone, allowing you to choose which apps to block and stay productive.
- Blocks distracting apps
- Deep Work mode
- Cross-device sync
- QR code pairing
- Customizable app blocking
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~REQUIRES NEREUS DESKTOP APP~ Nereus helps you do your best work by blocking distracting apps on your iPhone during Deep Work sessions. DEEP WORK MODE When you're ready to focus, Nereus shields distracting apps so you can't access them until your session ends. No willpower needed - just scan the QR code from the Nereus Mac app and your phone locks down automatically. CROSS-DEVICE SYNC Pair your iPhone with the Nereus desktop app via QR code. Start a session on your Mac or Windows and your phone blocks until you complete your focus session. APP BLOCKING Select exactly which apps distract you most. Social media, messaging, games - block what you need, keep what matters. STAY DEEP Stay where digital distractions aren't - at the bottom of the sea.
ScreenBuddy
This app helps reduce screen time by introducing friction before accessing selected apps. It offers personalized daily limits and a pause before unlocking to break unconscious phone usage habits and combat digital addiction.
- Block selected apps 24/7
- Pause before unlocking apps
- Personalized daily screen time limits
- Breaks unconscious phone use habits
- Reduces digital addiction
- Focus enhancement for work and study
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ScreenBuddy uses friction to cut your screen time in half. Pick the apps that distract you most, and ScreenBuddy makes you wait 25 seconds before you can open them. Set a daily usage limit, and when it's gone, it's gone. HOW IT WORKS: - Select apps you want to limit. They are blocked 24/7 - Pause before you scroll. Wait before each unlock to break unconscious phone use - Personalized limits. Set a daily screen time limit you can commit to. Use it all at once or spread it out. Once it's gone, it's gone. WHY IT WORKS: Most app blockers are easy to bypass. You hit a limit, tap "ignore," and keep scrolling. ScreenBuddy works differently. Your apps are locked from the start, and the 25-second pause gives you time to reconsider before you open them. Over time, the phone habit fades because you keep interrupting it. ScreenBuddy helps you stop phone addiction without a full digital detox or dopamine detox. Just enough friction to stop doomscrolling and start living phone free. PERFECT FOR: - People who pick up their phone and don't remember why - Anyone trying to cut back on social media and brain rot content - Professionals who need distraction-free focus during work hours - Students struggling to stay on task - Parents who want to model better phone habits SUBSCRIPTION DETAILS: ScreenBuddy requires a premium subscription for full functionality. Choose monthly ($3.99), annual ($39.99 - 2 months free), or lifetime ($99.99) billing through your Apple ID. Your subscription automatically renews unless cancelled at least 24 hours before the current period ends. Manage your subscription anytime in your Apple ID account settings. PRIVACY: https://www.screenbuddyapp.com/privacy-policy TERMS: https://www.screenbuddyapp.com/terms-of-service
Screenshots
Verdict
The clearest difference is in-app purchases: Nereus at none against ScreenBuddy's 3. Nereus also leads on rating (5.0 vs 4.6). ScreenBuddy's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (9 vs 1). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ScreenBuddy sells 3 in-app purchases, starting at $3.99 per month. Nereus asks for nothing beyond the download.
Nereus holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ScreenBuddy has 9 ratings behind it against 1, so its average is the more settled of the two.
Nereus ships an update every 2 months, ScreenBuddy every 3 weeks. Both last shipped on October 2, 2026.
| Parameter | Nereus | ScreenBuddy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.6 (9 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 9 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 16 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Joseph Balkan | John Gaffney |
Customer experience
Nereus
ScreenBuddy
In-app purchases
Nereus
No in-app purchases
ScreenBuddy
- ScreenBuddy Pro Monthly3 Days trial$3.991 Month
- ScreenBuddy Pro Annual3 Days trial$39.991 Year
- ScreenBuddy Pro Lifetime$99.99









