# CI Smart Sensor vs Vaultek ViSN

The clearest difference is rating: CI Smart Sensor at 4.2 against Vaultek ViSN's 2.5. CI Smart Sensor also leads on review sentiment (69% vs 33%) and in-app purchases (none vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Vaultek ViSN sells 1 in-app purchase, starting at $4.99 per month. CI Smart Sensor asks for nothing beyond the download.

CI Smart Sensor holds the better App Store score, 4.2 against 2.5. That said, the two scores are not equally well evidenced: CI Smart Sensor has 358 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 69% of CI Smart Sensor's written reviews are positive against 33% of Vaultek ViSN's.

CI Smart Sensor ships an update every 2 months, Vaultek ViSN every 3 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CI Smart Sensor | Vaultek ViSN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (358 ratings)](https://appshunter.io/ios/app/ci-smart-sensor/id1281682435/reviews)** | [2.5 (17 ratings)](https://appshunter.io/ios/app/vaultek-visn/id6670317613/reviews) |
| Number of ratings | **358** | 17 |
| Positive reviews | **68.9% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Freemium |
| Size | 52 MB | 20 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [BPA Sales, LP](https://appshunter.io/developer/1671653832) | [Vaultek Safe, Inc.](https://appshunter.io/developer/1406658583) |

## What reviewers say

### CI Smart Sensor

[App page](https://appshunter.io/ios/app/ci-smart-sensor/id1281682435)

Monitor humidity and temperature in your humidor or container remotely. Receive alerts for out-of-range conditions or unauthorized access. Analyze historical data to optimize storage and protect your valuables.

**Highlights:** Continuous humidity and temperature gauging, Push notifications for custom ranges, Alerts for container access, Hourly, daily, and monthly data analysis, Bluetooth Low Energy connectivity, Remote monitoring

**In-app purchases:** none

**What reviewers like**

- 📊 Accurate humidity and temperature readings
- 🔍 Helpful for monitoring cigar humidors
- 🔋 Long-lasting battery life
- 🔧 Easy to calibrate

**What reviewers complain about**

- 🐛 Connectivity issues and app crashes
- 🕰️ Slow app performance and delayed updates
- 🔔 Unreliable push notifications
- 🤖 Forced account creation

**Reported bugs**

- Sensor readings not updating in real-time
- Calibration process not working as expected
- Battery draining faster than expected
- App losing historic data after updates

**Requested features**

- Wi-Fi connectivity for remote monitoring
- Customizable alert thresholds
- Ability to rearrange sensor order in app
- Bring back analog hygrometer display


### Vaultek ViSN

[App page](https://appshunter.io/ios/app/vaultek-visn/id6670317613)

Control and monitor your Wi-Fi enabled safe remotely. Effortlessly set up your device, manage user access with fingerprints and temporary passcodes, and receive real-time alerts for critical activity. Upgrade for advanced features like SOS alerts and multi-safe management.

**Highlights:** Wi-Fi enabled safe network, User-friendly guided setup, Real-time critical activity alerts, Program up to 80 fingerprints, Temporary passcode generation, SOS emergency alerts (premium), Over-the-air firmware updates

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ViSN Premium Subscription | $4.99 | per month |


## Frequently asked questions

### Is CI Smart Sensor free?

CI Smart Sensor is free to download, with no in-app purchases.

### Is Vaultek ViSN free?

Vaultek ViSN is free to download, with in-app purchases available.

### Which has better reviews, CI Smart Sensor or Vaultek ViSN?

CI Smart Sensor is rated higher. CI Smart Sensor averages 4.2 out of 5 from 358 ratings, while Vaultek ViSN averages 2.5 from 17 ratings.

### Do CI Smart Sensor or Vaultek ViSN have ads?

Neither CI Smart Sensor nor Vaultek ViSN shows ads.

### Which is updated more often, CI Smart Sensor or Vaultek ViSN?

CI Smart Sensor ships an update every 2 months, and Vaultek ViSN every 3 months. Most recently, CI Smart Sensor was updated on October 7, 2026 and Vaultek ViSN on October 8, 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.*