# STRATIS 2.0 vs Two 21 Armstrong

The clearest difference is rating: Two 21 Armstrong at 5.0 against STRATIS 2.0's 4.0. STRATIS 2.0's advantage is ratings volume (8.8K vs 1). 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.

Two 21 Armstrong holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: STRATIS 2.0 has 8.8K ratings behind it against 1, so its average is the more settled of the two.

STRATIS 2.0 ships an update monthly, Two 21 Armstrong every 3 weeks. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | STRATIS 2.0 | Two 21 Armstrong |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (8.8K ratings)](https://appshunter.io/ios/app/stratis-20/id1482867892/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/two-21-armstrong/id6766769811/reviews)** |
| Number of ratings | **8.8K** | 1 |
| Positive reviews | 14.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 84 MB | 124 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [StratIS EMS, LLC](https://appshunter.io/developer/866928201) | [200 E Illinois St LLC](https://appshunter.io/developer/1473146957) |

## What reviewers say

### STRATIS 2.0

[App page](https://appshunter.io/ios/app/stratis-20/id1482867892)

Control smart home devices, manage access, and submit service requests within your apartment building. This app provides mobile passes for elevators, parking, common areas, and units, along with remote control of thermostats, lighting, and more. It focuses on security, energy management, and building efficiencies.

**Highlights:** Mobile passes for electronic access points, Remote control of smart home devices, Submit service requests, Visitor access requests, Customizable home dashboard, Energy and water consumption tracking

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🔒 Convenient access
- 👍 Guest access
- 👍 Thermostat control

**What reviewers complain about**

- 🐛 Slow connection to locks
- 🐛 Unreliable performance
- 🐛 Frequent login issues
- 🐛 Inconsistent user experience
- 🐛 Thermostat control issues

**Reported bugs**

- App crashes and freezes
- Inability to connect to locks
- Thermostat controls not working
- Frequent sign-outs

**Requested features**

- Faster lock connection
- More reliable performance
- Improved user interface
- Integration with smart home platforms
- Ability to share access with guests


### Two 21 Armstrong

[App page](https://appshunter.io/ios/app/two-21-armstrong/id6766769811)

Manage your apartment living experience seamlessly. RSVP to events, pay rent, request maintenance, book amenities, and connect with neighbors. Earn rewards and get instant AI assistance for all your community needs.

**Highlights:** RSVP to events, Secure rent payment, Maintenance requests, Amenity booking, Resident rewards, Community feed, AI resident assistant

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is STRATIS 2.0 free?

STRATIS 2.0 is free to download, with no in-app purchases.

### Is Two 21 Armstrong free?

Two 21 Armstrong is free to download, with no in-app purchases.

### Which has better reviews, STRATIS 2.0 or Two 21 Armstrong?

Two 21 Armstrong is rated higher. STRATIS 2.0 averages 4.0 out of 5 from 8.8K ratings, while Two 21 Armstrong averages 5.0 from 1 ratings.

### Do STRATIS 2.0 or Two 21 Armstrong have ads?

Neither STRATIS 2.0 nor Two 21 Armstrong shows ads.

### Which is updated more often, STRATIS 2.0 or Two 21 Armstrong?

STRATIS 2.0 ships an update monthly, and Two 21 Armstrong every 3 weeks. Most recently, STRATIS 2.0 was updated on October 17, 2026 and Two 21 Armstrong on October 5, 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.*