# SmartTemp vs Sign documents Fast & Secure

The clearest difference is update cadence: SmartTemp at every 9 days against Sign documents Fast & Secure's monthly. Sign documents Fast & Secure's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SmartTemp sells 2 in-app purchases, starting at $4.99 per 7 days and Sign documents Fast & Secure sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SmartTemp ships an update every 9 days, Sign documents Fast & Secure monthly. The most recent releases landed on October 9, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | SmartTemp | Sign documents Fast & Secure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (98 ratings)](https://appshunter.io/ios/app/smarttemp-home-control/id6747895481/reviews)** | — |
| Number of ratings | **98** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 28 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LS HOWELL LLC](https://appshunter.io/developer/1846830062) | [UPPER UNIT Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1896555201) |

## What reviewers say

### SmartTemp

[App page](https://appshunter.io/ios/app/smarttemp-home-control/id6747895481)

Effortlessly manage your home's climate from anywhere with this intuitive app. Connect your devices via HomeKit to set custom schedules, monitor individual room temperatures, and receive real-time notifications for optimal comfort and energy efficiency.

**Highlights:** Remote temperature adjustment, HomeKit device integration, Room-specific temperature monitoring, Customizable schedules, Smart temperature presets, Real-time climate notifications

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Thermostat Premium | $4.99 | per 7 days |
| Thermostat Premium | $4.99 | per 7 days |


### Sign documents Fast & Secure

[App page](https://appshunter.io/ios/app/sign-documents-fast-and-secure/id6768265137)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock full access | $5.99 | per 7 days |
| Fast & Secure Sign Pro | $5.99 | per 7 days |


## Frequently asked questions

### Is SmartTemp free?

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

### Is Sign documents Fast & Secure free?

Sign documents Fast & Secure is free to download, with in-app purchases available.

### Do SmartTemp or Sign documents Fast & Secure have ads?

Neither SmartTemp nor Sign documents Fast & Secure shows ads.

### Which is updated more often, SmartTemp or Sign documents Fast & Secure?

SmartTemp ships an update every 9 days, and Sign documents Fast & Secure monthly. Most recently, SmartTemp was updated on October 9, 2026 and Sign documents Fast & Secure on October 19, 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.*