# JustIN Mobile vs ShareBuilder

The clearest difference is rating: JustIN Mobile at 4.6 against ShareBuilder's 3.0. JustIN Mobile also leads on ratings volume (4.3K vs 2). ShareBuilder's advantage is iOS requirement (13.4 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

JustIN Mobile holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: JustIN Mobile has 4.3K ratings behind it against 2, so its average is the more settled of the two.

JustIN Mobile ships an update every 6 weeks, ShareBuilder every 2 months. The most recent releases landed on September 24, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | JustIN Mobile | ShareBuilder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (4.3K ratings)](https://appshunter.io/ios/app/justin-mobile/id960998088/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/sharebuilder/id1671572124/reviews) |
| Number of ratings | **4.3K** | 2 |
| Positive reviews | 24.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 37 MB | 15 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Salto Systems](https://appshunter.io/developer/893918231) | [ShareBuilders, Inc.](https://appshunter.io/developer/1414928745) |

## What reviewers say

### JustIN Mobile

[App page](https://appshunter.io/ios/app/justin-mobile/id960998088)

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:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- ⭐ Works great
- 🔑 Convenient digital key
- 🔍 Helpful widget feature

**What reviewers complain about**

- 🔌 Unreliable connectivity
- 🔒 Frequent lock-outs
- ⏱️ Slow performance
- 📱 No Apple Watch support

**Reported bugs**

- Keys randomly expire
- Widget not working on latest iOS
- Verification codes not received

**Requested features**

- Add Apple Watch app
- Integrate with Apple Wallet
- Improve guest access sharing


### ShareBuilder

[App page](https://appshunter.io/ios/app/sharebuilder/id1671572124)

This platform empowers media sales teams with tools to organize sales data, identify trends, and close deals faster. It offers intelligence for revenue forecasting, inventory analysis, and pricing, all accessible via a user-friendly, cloud-based interface.

**Highlights:** Organized sales data access, Trend identification and progress tracking, Revenue forecasting intelligence, Inventory analysis and pricing, Streamlined workflow, Cloud-based data insights

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is JustIN Mobile free?

JustIN Mobile is free to download, with no in-app purchases.

### Is ShareBuilder free?

ShareBuilder is free to download, with no in-app purchases.

### Which has better reviews, JustIN Mobile or ShareBuilder?

JustIN Mobile is rated higher. JustIN Mobile averages 4.6 out of 5 from 4.3K ratings, while ShareBuilder averages 3.0 from 2 ratings.

### Do JustIN Mobile or ShareBuilder have ads?

Neither JustIN Mobile nor ShareBuilder shows ads.

### Which is updated more often, JustIN Mobile or ShareBuilder?

JustIN Mobile ships an update every 6 weeks, and ShareBuilder every 2 months. Most recently, JustIN Mobile was updated on September 24, 2026 and ShareBuilder on June 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*