# Constant Contact vs SentriKey Access+

The clearest difference is rating: Constant Contact at 4.8 against SentriKey Access+'s 1.0. Constant Contact also leads on review sentiment (34% vs 0%) and ratings volume (11K vs 1). SentriKey Access+'s advantage is iOS requirement (13.2 vs 18.0). 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.

Constant Contact holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Constant Contact has 11K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 34% of Constant Contact's written reviews are positive against 0% of SentriKey Access+'s.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Constant Contact | SentriKey Access+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (11K ratings)](https://appshunter.io/ios/app/constant-contact/id880731821/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/sentrikey-access-plus/id1669803790/reviews) |
| Number of ratings | **11K** | 1 |
| Positive reviews | **33.6% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | Free |
| Size | 286 MB | 96 MB |
| Requires iOS | 18.0 | **13.2** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Constant Contact, Inc.](https://appshunter.io/developer/329744934) | [Keynetics](https://appshunter.io/developer/1215383999) |

## What reviewers say

### Constant Contact

[App page](https://appshunter.io/ios/app/constant-contact/id880731821)

This app is an all-in-one marketing platform for small businesses. It allows users to create and manage email, social media, and SMS campaigns, track performance, and streamline contact management with a built-in CRM. Get started quickly with intuitive tools and AI assistance for content generation.

**Highlights:** Create professional email campaigns, Track campaign performance, Streamline contact management (CRM), Compose social posts, Manage brand assets on the go, AI content assistance

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient mobile experience
- 🚀 Efficient email scheduling
- 💯 Exceptional customer service

**What reviewers complain about**

- 🐛 Buggy and unstable app
- 🚫 Limited functionality compared to desktop
- 💰 Expensive with questionable value

**Reported bugs**

- App crashes when accessing photo library
- Inconsistent sync between app and website
- Unreliable email delivery from mobile app

**Requested features**

- Ability to edit emails created on desktop
- Improved mobile-friendly templates
- Real-time contact and campaign analytics


### SentriKey Access+

[App page](https://appshunter.io/ios/app/sentrikey-access-plus/id1669803790)

This smart lock solution removes the need for physical keys or codes. Users can release a key from a lockbox via the app using Bluetooth or NFC. It also allows for note-taking and photo uploads to track property access and issues.

**Highlights:** Keyless entry via app, Bluetooth and NFC connectivity, Key bin release function, Add notes and photos, View past access notes, Track visit progress

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Constant Contact free?

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

### Is SentriKey Access+ free?

SentriKey Access+ is free to download, with no in-app purchases.

### Which has better reviews, Constant Contact or SentriKey Access+?

Constant Contact is rated higher. Constant Contact averages 4.8 out of 5 from 11K ratings, while SentriKey Access+ averages 1.0 from 1 ratings.

### Do Constant Contact or SentriKey Access+ have ads?

Neither Constant Contact nor SentriKey Access+ shows ads.

### Which is updated more often, Constant Contact or SentriKey Access+?

Constant Contact ships an update fortnightly, and SentriKey Access+ fortnightly. Most recently, Constant Contact was updated on October 19, 2026 and SentriKey Access+ on October 9, 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.*