Firebase Pusher vs Sentinel Line
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Firebase Pusher
This utility app allows users to send targeted push notifications to individual users, groups, or based on specific conditions. It supports custom JSON notifications and provides a history of sent messages. The app works with HTTP v1 and offers a premium subscription with a free trial.
- Send notifications by Firebase ID
- Send notifications to groups
- Send notifications using conditions
- Get response after sending
- Send custom JSON notifications
- Save application lists
- Save notification history
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Functions: - Sending notifications to a specific user by firebase id - Sending notifications to a group of users - Sending notifications using the conditions - Get response after notification - Able to send custom notifications via JSON - You can save the list of applications - Saves the history of sent notifications - Work with HTTP v1 Privacy policy: https://sites.google.com/view/firebasepusher/privacy-policy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Sentinel Line
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Designed for adults, Sentinel Line helps you manage your own app access for focus, digital wellbeing, privacy, and personal security. It provides an extra layer of protection for sensitive apps and helps you stay focused by making selected apps available only in the places you choose. Create Safety Zones around places that matter to you. While you are inside a protected zone, your selected apps remain available. When you leave the zone, Sentinel Line automatically protects them. Safety Zones • Create zones around specific locations • Choose the radius of each zone • Give each zone a meaningful name • Edit zones whenever you need App Protection • Select the apps you want to protect • Protection is automatically applied when you leave a zone • Protection is automatically removed when you return • Multiple zones can work together Sentinel Line uses Apple's Family Controls and location technologies to provide location-based app protection. Your zones and configuration are stored on your device. Privacy & Location Access Sentinel Line uses your location to automatically protect your apps based on the Safety Zones you create. For automatic protection to work even when Sentinel Line is not open, Location Access must be set to “Always”. Sentinel Line uses your location only to determine whether you are inside or outside the Safety Zones you have configured. Your location data is not shared with third parties or used for advertising. You can change your location permission at any time in Settings → Privacy & Security → Location Services.
Screenshots
Verdict
The clearest difference is in-app purchases: Sentinel Line at none against Firebase Pusher's 1. Sentinel Line also leads on ads (none vs shown) and update cadence (every 4 days vs every 2 months). Firebase Pusher's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 26.1). On price 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. Firebase Pusher sells 1 in-app purchase, starting at $1.49 per month. Sentinel Line asks for nothing beyond the download.
Firebase Pusher ships an update every 2 months, Sentinel Line every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Firebase Pusher | Sentinel Line |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 18 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavlo Kravchenko | Frederico Cox |
In-app purchases
Firebase Pusher
- Month of premium3 Days trial$1.491 Month
Sentinel Line
No in-app purchases
Questions
Is Firebase Pusher free?
Is Sentinel Line free?
Do Firebase Pusher or Sentinel Line have ads?
Which is updated more often, Firebase Pusher or Sentinel Line?
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