Hollow Zero vs BuckBlock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hollow Zero
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Hollow Zero is a personal AI assistant built to help you follow through. It is designed to feel less like a chatbot and more like an assistant that can help you handle real things in your life. Zero helps you keep track of what matters, bring it back at the right time, and take the next step faster. Use Hollow Zero to: - stay on top of emails that need replies - remember follow-ups you would normally forget - plan your schedule and calendar - save personal context, contacts, and preferences - ask natural questions about your inbox and calendar - take action through connected tools and integrations Zero can help with things like: - summarizing recent emails - understanding what someone wants from an email thread - drafting and sending emails - checking your schedule - finding free time - creating events - remembering important personal details - helping you follow through on what matters Hollow Zero is a personal assistant first. As you connect more of your accounts and tools, it becomes more useful and more capable. Built for people who want an assistant that can actually help with real workflows, not just generate text. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
BuckBlock
This app helps you block distracting applications by requiring a physical tap on a designated station to regain access. It's designed to enforce focus without relying on willpower or timers, making it easier to commit to study sessions.
- Block distracting apps and categories
- Physical station tap to start/end sessions
- No willpower or timers needed
- Commitment device for focus
- Designed for students and study groups
- Uses Apple's Screen Time API for privacy
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BuckBlock eliminates the apps that break your concentration, and only unlocks them when you physically get up and tap a BuckBlock Station. No willpower required. No timers to talk yourself out of. Just a simple rule: if you want your apps back, walk to the station. HOW IT WORKS - Choose the apps and categories you want blocked - Tap a BuckBlock Station with your phone - Select length of your study session - Tap a BuckBlock station to regain your apps or wait until the session is over WHY A PHYSICAL TAP Starting a focus session in a normal app takes half a dozen taps and one decision. Most people don't get past the decision. BuckBlock moves that moment out of your phone and into the room you're already sitting in. You sit down, you tap the disc, you're in. The station is a commitment device. Tapping it is a small physical act that's harder to argue yourself out of than opening an app. BUILT FOR FOCUS Designed for students, study groups, and anyone who has quietly lost an evening to their phone. Stations can be found all over — the library, gym, just look around! PRIVACY Your app usage stays on your device. BuckBlock uses Apple's Screen Time API, which means we never see which apps you use or how long you use them.
Screenshots
Verdict
The clearest difference is in-app purchases: BuckBlock at none against Hollow Zero's 2. Hollow Zero's advantage is iOS requirement (14.0 vs 17.0). On price, ads and device support 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. Hollow Zero sells 2 in-app purchases, starting at $12.99 per month. BuckBlock asks for nothing beyond the download.
| Parameter | Hollow Zero | BuckBlock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (7 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 7 — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 22 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Geronti Liparteliani | Vance Johnson |
In-app purchases
Hollow Zero
- Hollow Premium Monthly$12.991 Month
- Hollow Premium Yearly$99.991 Year
BuckBlock
No in-app purchases









