# Smartlink Security vs Theo | Bible Study Lock

The clearest difference is review sentiment: Theo | Bible Study Lock at 100% against Smartlink Security's 9%. Theo | Bible Study Lock also leads on rating (5.0 vs 2.3) and update cadence (every 4 days vs every 2 months). Smartlink Security's advantage is in-app purchases (none vs 3) and ratings volume (105 vs 12). On price, ads and device support there is nothing between them.

Both are free to download. Theo | Bible Study Lock sells 3 in-app purchases, starting at $5.99 per month. Smartlink Security asks for nothing beyond the download.

Theo | Bible Study Lock holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: Smartlink Security has 105 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 9% of Smartlink Security's written reviews are positive against 100% of Theo | Bible Study Lock's.

Smartlink Security ships an update every 2 months, Theo | Bible Study Lock every 4 days. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Smartlink Security | Theo | Bible Study Lock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (105 ratings)](https://appshunter.io/ios/app/smartlink-security/id1266830174/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/theo-bible-study-lock/id6760088556/reviews)** |
| Number of ratings | **105** | 12 |
| Positive reviews | 9.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 101 MB | 88 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [SecureNet Technologies, LLC](https://appshunter.io/developer/890342713) | [LandSlide Studios LLC](https://appshunter.io/developer/1882580200) |

## What reviewers say

### Smartlink Security

[App page](https://appshunter.io/ios/app/smartlink-security/id1266830174)

Manage your home's security, lighting, climate, and cameras from one app. Receive real-time alerts, remotely arm/disarm your system, and monitor live video feeds. Control various connected devices for comprehensive home automation.

**Highlights:** Remote security system control, Real-time alarm status and alerts, Live video monitoring, Event recording for security events, Control lights, locks, and thermostats, Monitor family and pets remotely

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Two-way voice and camera functionality
- 💡 New 'Recipes' feature for event recording
- 👍 Works well with specific systems (e.g., iotega)
- 👍 Responsive and works every time (for some users)

**What reviewers complain about**

- 🐛 Frequent app crashes
- 🐛 App does not open
- 🐛 Login issues (slow, fails, freezes)
- 🐛 Connectivity problems (no connection, disconnects)
- 🐛 App settings reset after updates

**Reported bugs**

- App crashes instantly on opening
- App keeps crashing, forcing reinstallation
- App crashes when trying to disarm
- Login fails with 'Json parser error: Unrecognized token '<''
- Secure Connection Error / No Connection

**Requested features**

- Add text alerts for specific zones
- Allow logging out after closing the app
- Enable push notifications for alarm events
- Improve integration with other security apps (Arlo, SkyBell)
- Add widget for iOS


### Theo | Bible Study Lock

[App page](https://appshunter.io/ios/app/theo-bible-study-lock/id6760088556)

This app helps you focus on your Bible study by blocking distracting applications. It offers guided reading plans, an AI scripture companion, journaling, and a fasting tracker to build your faith.

**Highlights:** App blocking focus mode, Daily Bible with reading plans, AI Scripture companion, Private and shared journaling, Fasting tracker and community support

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theo Monthly | $5.99 | per month |
| Theo Yearly Discount | $29.99 | per year |
| Theo Premium — Yearly | $39.99 | per year |


## Frequently asked questions

### Is Smartlink Security free?

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

### Is Theo | Bible Study Lock free?

Theo | Bible Study Lock is free to download, with in-app purchases available.

### Which has better reviews, Smartlink Security or Theo | Bible Study Lock?

Theo | Bible Study Lock is rated higher. Smartlink Security averages 2.3 out of 5 from 105 ratings, while Theo | Bible Study Lock averages 5.0 from 12 ratings.

### Do Smartlink Security or Theo | Bible Study Lock have ads?

Neither Smartlink Security nor Theo | Bible Study Lock shows ads.

### Which is updated more often, Smartlink Security or Theo | Bible Study Lock?

Smartlink Security ships an update every 2 months, and Theo | Bible Study Lock every 4 days. Most recently, Smartlink Security was updated on October 24, 2026 and Theo | Bible Study Lock on October 21, 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.*