# D vs Smart Lock for ttlock

The clearest difference is in-app purchases: D at none against Smart Lock for ttlock's 10. D also leads on iOS requirement (14.0 vs 18.0). Smart Lock for ttlock's advantage is update cadence (monthly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Smart Lock for ttlock sells 10 in-app purchases, starting at $4.99 per month. D asks for nothing beyond the download.

D ships an update every 3 months, Smart Lock for ttlock monthly. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | D | Smart Lock for ttlock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (119 ratings)](https://appshunter.io/ios/app/smart-lock-for-ttlock/id6755474360/reviews)** |
| Number of ratings | — | **119** |
| Positive reviews | — | 11.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 44 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Dislock Sistemas S.L.](https://appshunter.io/developer/1538035294) | [Solma Grow LLC](https://appshunter.io/developer/1788937829) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-lock/id1538035292)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Smart Lock for ttlock

[App page](https://appshunter.io/ios/app/smart-lock-for-ttlock/id6755474360)

Manage compatible smart locks remotely or via Bluetooth. Create digital keys, passcodes, and cards for guests, and monitor access logs. Organize multiple properties and devices with ease.

**Highlights:** Bluetooth unlocking, Remote access via gateway, Manage all TTLock devices, eKeys, passcodes, and cards, Access logs, Multiple homes and properties

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Lock ttlock - Monthly | $4.99 | per month |
| Smart Lock ttlock - Monthly | $12.99 | per month |
| Smart Lock ttlock - Monthly x12 | $24.99 | per year |
| Yearly Subscription Smartlock Offer | $49.99 | per year |
| Smart Lock ttlock - Yearly | $49.99 | per year |
| Smart Lock ttlock - Yearly | $59.99 | per year |
| Lifetime Purchase T3 Smart Locks | $29.99 | one-time |
| Smart Lock ttlock - Lifetime | $49.99 | one-time |
| Smart Lock ttlock - Lifetime | $69.99 | one-time |
| Smart Lock for ttlock - Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is D free?

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

### Is Smart Lock for ttlock free?

Smart Lock for ttlock is free to download, with in-app purchases available.

### Do D or Smart Lock for ttlock have ads?

Neither D nor Smart Lock for ttlock shows ads.

### Which is updated more often, D or Smart Lock for ttlock?

D ships an update every 3 months, and Smart Lock for ttlock monthly. Most recently, D was updated on October 7, 2026 and Smart Lock for ttlock on October 20, 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.*