JustIN Mobile vs luca app
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JustIN Mobile
This app allows users to manage building access using their smartphone. It provides digital keys for doors, elevators, and car park barriers, eliminating the need for physical keys and simplifying access control across multiple locations.
- Smartphone-based digital keys
- Manage access to doors, elevators, barriers
- Multi-site and multi-application support
- Eliminates lost key issues
- User-friendly interface
- Store multiple digital keys
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Salto JustIN Mobile access technology simplifies the users and dynamic key management process of users in a building. Receiving a key generated electronically on their smartphone, previously identified and authorized by the system, they can unlock the assigned doors from the JustIN Mobile app by selecting the appropriate key. Technologically cutting-edge, JustIN Mobile means the end of lost key hassles, expenses and waste. Plus, the technology isn't limited to one building or hotel room - it can also be used by staff and users on multiple sites for any kind of access types like main entrance doors, elevators, car park barriers, meeting rooms, etc. Combined with user-convenient features such as user friendly design or multi key possibilities to use the same app in different buildings, locations and for different applications, JustIN Mobile access control technology simplifies card issuing, fob and traditional PIN code management that can be lost, forgotten or broken by offering flexibility for diverse applications. People do not forget their phones as they forget their keys and, if lost, they are replaced rapidly. This is a major benefit for administrators, clients, and users. About Salto Systems: Salto is a leading global access solutions provider, part of the SALTO WECOSYSTEM. We develop pioneering facility access, identity management and electronic locking technology that ensures seamless, reliable and secure experiences. Through close customer relationships and innovative solutions, our global team of experts create timeless and meaningful products that positively impact people and planet. Stay connected with @saltosystems Salto Systems never ceases to improve! Stay tuned to our social networks to discover the features included in the new version of our JustIN Mobile app. No more hard decisions to make! You can now save multiple digital keys and access different premises with the new version of JustIN. @saltosystems #JustIN #AccessControl
luca app
Discover restaurants, bars, and cafes with digital access to menus and past visit history. Book reservations and enhance your social experiences with this app.
- Discover restaurants, bars, cafes
- Access digital menus
- View past visit history
- Book reservations
- Digital social life management
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Luca helps you to digitally shape your social life. You can use luca to discover restaurants, bars and cafés as well as access additional information such as menus. You can also access an overview of your past visits. For individual locations, the app can perform other functions. For example, reservations can be booked. Luca was designed and established in Germany. We are working to make luca available in other countries soon.
Screenshots
Verdict
JustIN Mobile and luca app both sit at 4.6 stars, but that hides the real split: 48% of luca app's written reviews are positive against 25% of JustIN Mobile's. luca app also leads on update cadence (every 2 weeks vs every 6 weeks). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 4.6 for JustIN Mobile against 4.5 for luca app. Both are backed by a comparable volume of ratings — 4.3K and 1.9K respectively. Written reviews are what separate them: 25% of JustIN Mobile's written reviews are positive against 48% of luca app's.
JustIN Mobile ships an update every 6 weeks, luca app every 2 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.
| Parameter | JustIN Mobile | luca app |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (4.3K ratings) — better | 4.5 (1.9K ratings) |
| Positive reviews | 25.1% of reviews | 48.5% of reviews — better |
| Number of ratings | 4.3K — better | 1.9K |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | Salto Systems | culture4life GmbH |
Customer experience
JustIN Mobile
luca app
User reviews
JustIN Mobile
From 4.3K App Store ratingsWhat we love
- ⭐ Works great
- 🔑 Convenient digital key
- 🔍 Helpful widget feature
Room to improve
- 🔌 Unreliable connectivity
- 🔒 Frequent lock-outs
- ⏱️ Slow performance
- 📱 No Apple Watch support
luca app
From 1.9K App Store ratingsWhat we love
- 👍 Easy and convenient to use
- 🚀 Quick and simple registration
- 💡 Useful for storing vaccination QR codes
- 🔒 Preserves privacy and data security
Room to improve
- 🐛 Buggy and unreliable functionality
- ⚠️ Doesn't work with non-German phone numbers
- 🤔 Confusing and unintuitive interface
- 🔋 High battery drain
Bugs and requests
JustIN Mobile
Reported bugs
3 issues- Keys randomly expire
- Widget not working on latest iOS
- Verification codes not received
Requested features
3 requests- Add Apple Watch app
- Integrate with Apple Wallet
- Improve guest access sharing
luca app
Reported bugs
4 issues- SMS verification code not received
- App crashes or freezes during use
- QR code scanning issues
- Incorrect check-in/check-out times displayed
Requested features
4 requests- Ability to manually add/edit check-in events
- Automatic check-out feature
- Support for multiple languages
- Integration with other COVID-19 tracking apps
In-app purchases
JustIN Mobile
No in-app purchases
luca app
No in-app purchases









