sfty vs STELLA Libraries
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
sfty
This app enhances personal safety by allowing users to share their location with a trusted network. It also features an emergency alarm and integrates with a smart smoke detector for comprehensive home security.
- Location sharing with trusted contacts
- Personal emergency alarm
- Motion detection alerts
- Room temperature monitoring
- Relative air humidity monitoring
- WiFi connectivity for smart detector
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Sfty is both a free personal safety app and the main companion of sfty Sense - the WiFi connected smoke detector for apartments. You choose who should be part of your safety network - so they can be notified if something happens. Sfty Sense features: Interconnected, optical smoke detector Supports building wide installation for apartment buildings; warning everyone if a dangerous situation occurs Motion detection and alerts Monitoring of room temperature Monitoring of relative air humidity Connects to your WiFi Free features for all users of the app Follow Me Share your movements with all users so they can keep an eye on you as you go on an adventure or make your way home Help Me Personal alarm that can be triggered with the press of a button Continued use of GPS running in the background can dramatically decrease battery life.
STELLA Libraries
Easily search millions of library items, place holds, and manage your account. Access digital content, view event calendars, and connect with your library's community.
- Search millions of library items
- Place holds and choose pickup locations
- Manage library account (holds, checkouts, renewals)
- Store digital library card
- View library social media feeds
- Access event calendars
- Connect to digital content
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STELLA Libraries, the new name for the LMxPRESS PLUS app. Search and place holds on millions of items available in the STELLA catalog with our new and improved app! Search all STELLA member libraries for your favorite books, movies, music, and more. Download and connect to digital content, and stay in touch with your library's community through social media feeds and event calendars. Use the STELLA app to: * Place holds on items across all STELLA member libraries and choose your pickup location. * Manage your library account: view holds, checkouts, and renew items. * Store a digital copy of your library card on your device so you always have it with you. * Check your favorite library's social media feeds. * See upcoming library events on each member library's calendar. * Access digital content offered by individual libraries.
Screenshots
Verdict
The clearest difference is review sentiment: STELLA Libraries at 60% against sfty's 0%. STELLA Libraries also leads on ratings volume (22 vs 1). sfty's advantage is rating (4.0 vs 3.7). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
sfty holds the better App Store score, 4.0 against 3.7. That said, the two scores are not equally well evidenced: STELLA Libraries has 22 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 0% of sfty's written reviews are positive against 60% of STELLA Libraries's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.
| Parameter | sfty | STELLA Libraries |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | 3.7 (22 ratings) |
| Positive reviews | 0.0% of reviews | 60.0% of reviews — better |
| Number of ratings | 1 | 22 — better |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 208 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Sfty AS | Libraries of Middlesex Automation Consortium |
Customer experience
sfty
STELLA Libraries
In-app purchases
sfty
No in-app purchases
STELLA Libraries
No in-app purchases
Questions
Is sfty free?
Is STELLA Libraries free?
Which has better reviews, sfty or STELLA Libraries?
Do sfty or STELLA Libraries have ads?
Which is updated more often, sfty or STELLA Libraries?
Other comparisons
