# Thermo Log vs TR4 Report

The clearest difference is update cadence: Thermo Log at every 5 months against TR4 Report's every 16 months. Thermo Log also leads on iOS requirement (11.0 vs 15.0). 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.

Thermo Log ships an update every 5 months, TR4 Report every 16 months. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Thermo Log | TR4 Report |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 16 months |
| Size | 10 MB | 117 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [A&D Company, Limited](https://appshunter.io/developer/894522769) | [T&D Corporation](https://appshunter.io/developer/703327099) |

## What reviewers say

### Thermo Log

[App page](https://appshunter.io/ios/app/thermo-log/id1540705486)

**Features:** macOS Compatibility

**In-app purchases:** none


### TR4 Report

[App page](https://appshunter.io/ios/app/tr4-report/id1550000482)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Thermo Log free?

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

### Is TR4 Report free?

TR4 Report is free to download, with no in-app purchases.

### Do Thermo Log or TR4 Report have ads?

Neither Thermo Log nor TR4 Report shows ads.

### Which is updated more often, Thermo Log or TR4 Report?

Thermo Log ships an update every 5 months, and TR4 Report every 16 months. Most recently, Thermo Log was updated on September 10, 2026 and TR4 Report on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*