# Jotto vs RDZ CoRe

The clearest difference is update cadence: Jotto at every 2 months against RDZ CoRe's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Jotto ships an update every 2 months, RDZ CoRe every 13 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Jotto | RDZ CoRe |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 13 months |
| Monetization | — | Free |
| Size | 44 MB | 54 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jotto](https://appshunter.io/developer/1337401601) | [RDZ S.p.A](https://appshunter.io/developer/1698693105) |

## What reviewers say

### Jotto

[App page](https://appshunter.io/ios/app/jotto-termo/id1337401602)

**Features:** macOS Compatibility

**In-app purchases:** none


### RDZ CoRe

[App page](https://appshunter.io/ios/app/rdz-core/id6452012938)

Control your home's heating, cooling, and air renewal system remotely. Adjust temperature, manage unit operations, and optimize consumption from your smartphone or tablet. Integrates with voice assistants for hands-free control.

**Highlights:** Remote climate system control, View system operation, Adjust parameters easily, Voice command integration (Alexa, Google Home), Room-by-room climate management, Schedule operation by time slots

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Jotto free?

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

### Is RDZ CoRe free?

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

### Do Jotto or RDZ CoRe have ads?

Neither Jotto nor RDZ CoRe shows ads.

### Which is updated more often, Jotto or RDZ CoRe?

Jotto ships an update every 2 months, and RDZ CoRe every 13 months. Most recently, Jotto was updated on October 6, 2026 and RDZ CoRe on October 10, 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.*