Comparison

JustIN Mobile vs 300 Main

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

300 Main

Manage your living experience with a suite of online services. Book amenities, submit service requests, communicate with management, and handle payments seamlessly. Focus on enjoying your life with convenient access to all your building's offerings.

Highlights
  • Amenity reservations
  • Service requests
  • Resident messaging
  • Online payments
  • Concierge services
Features
Read full description

Experience the convenience and luxury of living at 300 Main with our resident app. Enjoy a variety of online services including amenity reservations, service requests, messaging, payments, concierge services, and much more, allowing you to focus on the finer things in life.

Screenshots

JustIN Mobile4 screens
300 Main4 screens

Verdict

The call

The clearest difference is rating: 300 Main at 5.0 against JustIN Mobile's 4.6. 300 Main also leads on update cadence (fortnightly vs every 6 weeks). JustIN Mobile's advantage is ratings volume (5.1K vs 27). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

300 Main holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: JustIN Mobile has 5.1K ratings behind it against 27, so its average is the more settled of the two.

UpkeepUpdate frequency

JustIN Mobile ships an update every 6 weeks, 300 Main fortnightly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
JustIN Mobile versus 300 Main: the parameters behind the verdict, then further details
ParameterJustIN Mobile300 Main
PriceFreeFree
Rating4.6 (5.1K ratings)5.0 (27 ratings) — better
Positive reviews25.1% of reviews—
Number of ratings5.1K — better27
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better16.6
Further details — not scored
Size37 MB267 MB
Age rating4+4+
DeveloperSalto SystemsLivly Inc

Customer experience

JustIN Mobile

All ratings4,266 ratings
Positive90.4%
Neutral2.5%
Negative7.2%
Written reviews291 reviews
Positive25.1%
Neutral14.8%
Negative60.1%

300 Main

All ratings27 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

300 Main

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

JustIN Mobile

No in-app purchases

None

300 Main

No in-app purchases

Questions

Is JustIN Mobile free?
JustIN Mobile is free to download, with no in-app purchases.
Is 300 Main free?
300 Main is free to download, with no in-app purchases.
Which has better reviews, JustIN Mobile or 300 Main?
300 Main is rated higher. JustIN Mobile averages 4.6 out of 5 from 5.1K ratings, while 300 Main averages 5.0 from 27 ratings.
Do JustIN Mobile or 300 Main have ads?
Neither JustIN Mobile nor 300 Main shows ads.
Which is updated more often, JustIN Mobile or 300 Main?
JustIN Mobile ships an update every 6 weeks, and 300 Main fortnightly. Most recently, JustIN Mobile was updated on October 26, 2026 and 300 Main on October 24, 2026.

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