# Pool Heater vs Telldus

The clearest difference is in-app purchases: Pool Heater at none against Telldus's 5. Pool Heater also leads on iOS requirement (9.0 vs 16.4). Telldus's advantage is update cadence (every 9 days vs every 2 months). On price, ads and device support there is nothing between them.

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

Pool Heater ships an update every 2 months, Telldus every 9 days. The most recent releases landed on October 26, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Pool Heater | Telldus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 24 MB | 90 MB |
| Requires iOS | **9.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Guangdong Chico Electronic Inc.](https://appshunter.io/developer/1238601940) | [Telldus Technologies AB](https://appshunter.io/developer/395971358) |

## What reviewers say

### Pool Heater

[App page](https://appshunter.io/ios/app/pool-heater/id1355580708)

**Features:** macOS Compatibility

**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 Pool Heater free?

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

### Is Telldus free?

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

### Do Pool Heater or Telldus have ads?

Neither Pool Heater nor Telldus shows ads.

### Which is updated more often, Pool Heater or Telldus?

Pool Heater ships an update every 2 months, and Telldus every 9 days. Most recently, Pool Heater was updated on October 26, 2026 and Telldus on October 31, 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.*