# Follo Ren vs Heat

The clearest difference is update cadence: Heat at every 11 days against Follo Ren's every 3 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.

Follo Ren ships an update every 3 months, Heat every 11 days. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Follo Ren | Heat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Size | 66 MB | 106 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [VSP AS](https://appshunter.io/developer/1494717191) | [OJ ELECTRONICS AS](https://appshunter.io/developer/1326069502) |

## What reviewers say

### Follo Ren

[App page](https://appshunter.io/ios/app/follo-ren/id6443798964)

**In-app purchases:** none


### Heat

[App page](https://appshunter.io/ios/app/heat-microtemp/id6762533477)

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

**In-app purchases:** none


## Frequently asked questions

### Is Follo Ren free?

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

### Is Heat free?

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

### Do Follo Ren or Heat have ads?

Neither Follo Ren nor Heat shows ads.

### Which is updated more often, Follo Ren or Heat?

Follo Ren ships an update every 3 months, and Heat every 11 days. Most recently, Follo Ren was updated on October 17, 2026 and Heat on October 16, 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.*