# SENZ vs Telldus

The clearest difference is in-app purchases: SENZ at none against Telldus's 5. Telldus's advantage is update cadence (every 10 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Telldus sells 5 in-app purchases, starting at $2.99 per month. SENZ asks for nothing beyond the download.

SENZ ships an update every 6 months, Telldus every 10 days. The most recent releases landed on August 15, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | SENZ | Telldus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/senz-wifi/id1166934559/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 10 MB | 85 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chemelex LLC](https://appshunter.io/developer/1825368145) | [Telldus Technologies AB](https://appshunter.io/developer/395971358) |

## What reviewers say

### SENZ

[App page](https://appshunter.io/ios/app/senz-wifi/id1166934559)

Control and monitor your Raychem SENZ-WIFI thermostats remotely. Easily adjust programs, settings, and track energy consumption to help reduce utility bills.

**Highlights:** Remote thermostat control, Program and setting adjustments, Energy consumption tracking, Support for up to 32 thermostats, Hourly, weekly, and monthly energy views

**Features:** Vision Pro support

**In-app purchases:** none


### Telldus

[App page](https://appshunter.io/ios/app/telldus/id6758139033)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Telldus 1 Month Premium | $2.99 | per month |
| Telldus 6 Months Premium | $14.99 | per 6 months |
| Telldus 12 Months Premium | $22.99 | per year |
| Telldus SMS-Package-50 | $4.99 | one-time |
| Telldus SMS | $7.99 | one-time |


## Frequently asked questions

### Is SENZ free?

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

### Is Telldus free?

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

### Do SENZ or Telldus have ads?

Neither SENZ nor Telldus shows ads.

### Which is updated more often, SENZ or Telldus?

SENZ ships an update every 6 months, and Telldus every 10 days. Most recently, SENZ was updated on August 15, 2026 and Telldus on September 18, 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.*