# TTLock vs St. Mark TN

The clearest difference is review sentiment: St. Mark TN at 100% against TTLock's 25%. St. Mark TN also leads on rating (5.0 vs 2.9) and ads (none vs shown). TTLock's advantage is ratings volume (551 vs 4). On price, update cadence, in-app purchases and device support there is nothing between them.

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

St. Mark TN holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: TTLock has 551 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 25% of TTLock's written reviews are positive against 100% of St. Mark TN's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | TTLock | St. Mark TN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (551 ratings)](https://appshunter.io/ios/app/ttlock/id1033046018/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/st-mark-tn/id6654894370/reviews)** |
| Number of ratings | **551** | 4 |
| Positive reviews | 25.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 371 MB | 56 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Sciener Smart Technology](https://appshunter.io/developer/1360996795) | [St. Mark C.O.C](https://appshunter.io/developer/1764194330) |

## What reviewers say

### TTLock

[App page](https://appshunter.io/ios/app/ttlock/id1033046018)

Control smart locks using your phone via Bluetooth. This app requires compatible hardware to function. Contact support within the app for assistance.

**Highlights:** Open doors via Bluetooth, Requires compatible hardware, In-app support contact, Secure access, Integrates with Alexa

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Works well
- 👍 Easy to use
- 💡 Lots of features
- 🔒 Secure access
- 🤖 Integrates with Alexa

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔋 Battery drain problems
- 🤯 Confusing instructions
- 🤖 Alexa integration not reliable
- 🤔 Can't see lock status

**Reported bugs**

- App crashes after updates
- Can't delete old locks from app
- Fingerprint scanner not working
- Remote unlock not functioning
- Passcode changes not syncing

**Requested features**

- Show lock/unlock status in app
- Add proximity unlock feature
- Improve Alexa integration
- Allow minute-level passcode scheduling
- Provide better customer support


### St. Mark TN

[App page](https://appshunter.io/ios/app/st-mark-tn/id6654894370)

This is the official application for St. Mark Coptic Orthodox Church in Nashville, TN. It provides church contact details, priest information, and a registration option for deacons. Visit the website for more information.

**Highlights:** Official church app, Contact information, Priest details, Deacon registration, Website link

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TTLock free?

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

### Is St. Mark TN free?

St. Mark TN is free to download, with no in-app purchases.

### Which has better reviews, TTLock or St. Mark TN?

St. Mark TN is rated higher. TTLock averages 2.9 out of 5 from 551 ratings, while St. Mark TN averages 5.0 from 4 ratings.

### Do TTLock or St. Mark TN have ads?

TTLock shows ads; St. Mark TN does not.

### Which is updated more often, TTLock or St. Mark TN?

TTLock ships an update every 3 weeks, and St. Mark TN every 3 weeks. Most recently, TTLock was updated on November 6, 2026 and St. Mark TN on October 30, 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.*