# Google Smart Lock vs Future Book

The clearest difference is in-app purchases: Google Smart Lock at none against Future Book's 4. Google Smart Lock also leads on chart position (#132 vs unranked). Future Book's advantage is update cadence (every 10 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Future Book sells 4 one-off in-app purchases. Google Smart Lock asks for nothing beyond the download.

Google Smart Lock ships an update every 2 months, Future Book every 10 days. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Google Smart Lock | Future Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (614 ratings)](https://appshunter.io/ios/app/google-smart-lock/id1152066360/reviews)** | — |
| Number of ratings | **614** | — |
| Positive reviews | 9.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#132** | — |
| Size | 56 MB | 15 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Google](https://appshunter.io/developer/281956209) | [家华 林](https://appshunter.io/developer/1896594366) |

## What reviewers say

### Google Smart Lock

[App page](https://appshunter.io/ios/app/google-smart-lock/id1152066360)

**Currently charting:** #132 Top Free · Utilities (US App Store)

Securely log in to websites and apps using your phone's built-in security key or a physical Bluetooth key. It simplifies access by remembering your passwords and offering a more convenient sign-in experience.

**Highlights:** Use phone as security key, Use Bluetooth security key, Password saving, Simplified sign-in, Secure access

**In-app purchases:** none

**What reviewers like**

- 🚀 Works fine
- 🔒 Adds extra security layer
- 👍 Useful app

**What reviewers complain about**

- 🐛 Crashes on iOS 18 update
- 🐛 Doesn't work with Yubikey
- 🐛 Doesn't work with child accounts
- 🐛 Unreliable, constant issues
- 🐛 Locked out of accounts

**Reported bugs**

- Crashes on launch
- Doesn't detect nearby devices
- Endless login loop
- Incompatible with latest iOS

**Requested features**

- Support for NFC security keys
- Easier setup and usage
- Better compatibility with other devices


### Future Book

[App page](https://appshunter.io/ios/app/future-book/id6789922505)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 Credits | $0.99 | one-time |
| 250 Credits | $3.99 | one-time |
| 1000 Credits | $12.99 | one-time |
| 4000 Credits | $39.99 | one-time |


## Frequently asked questions

### Is Google Smart Lock free?

Google Smart Lock is free to download, with no in-app purchases.

### Is Future Book free?

Future Book is free to download, with in-app purchases available.

### Do Google Smart Lock or Future Book have ads?

Neither Google Smart Lock nor Future Book shows ads.

### Which is updated more often, Google Smart Lock or Future Book?

Google Smart Lock ships an update every 2 months, and Future Book every 10 days. Most recently, Google Smart Lock was updated on September 25, 2026 and Future Book on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*