# Thermals vs Firelog

The clearest difference is in-app purchases: Thermals at none against Firelog's 11. Thermals also leads on review sentiment (83% vs 60%). Firelog's advantage is update cadence (fortnightly vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Firelog sells 11 in-app purchases, starting at $2.99 per month. Thermals asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Thermals against 4.6 for Firelog. Both are backed by a comparable volume of ratings — 28 and 42 respectively. Written reviews are what separate them: 83% of Thermals's written reviews are positive against 60% of Firelog's.

Thermals ships an update every 3 months, Firelog fortnightly. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Thermals | Firelog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (28 ratings)](https://appshunter.io/ios/app/thermals/id1567050762/reviews) | **[4.6 (42 ratings)](https://appshunter.io/ios/app/firelog-firebase-console-app/id6744783540/reviews)** |
| Number of ratings | 28 | **42** |
| Positive reviews | **83.3% of reviews** | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Best chart rank | #184 | **#99** |
| Size | 3 MB | 38 MB |
| Requires iOS | 18.6 | **17** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [George Garside](https://appshunter.io/developer/815604170) | [Valet Hero LLC](https://appshunter.io/developer/1780020867) |

## What reviewers say

### Thermals

[App page](https://appshunter.io/ios/app/thermals/id1567050762)

**Currently charting:** #184 Top Free · Developer Tools (US App Store)

Monitor your device's thermal state and processor activity to diagnose performance issues. Understand why your phone might be running slowly, charging slowly, or have reduced brightness due to overheating. Export data for further analysis with other development tools.

**Highlights:** Displays device thermal state, Shows active processor count, Monitors device uptime, Troubleshoots performance issues, Helps diagnose slow charging, Identifies brightness limitations, Exports raw data for analysis

**Features:** Apple Watch app

**In-app purchases:** none


### Firelog

[App page](https://appshunter.io/ios/app/firelog-firebase-console-app/id6744783540)

**Currently charting:** #99 Top Grossing · Developer Tools, #197 Top Free · Developer Tools (US App Store)

Manage your Firebase projects directly from your phone. Browse Firestore, monitor Cloud Functions, inspect storage, and track production activity without needing a laptop. Perfect for developers needing Firebase tools on the go.

**Highlights:** Manage Firebase projects on mobile, Browse and edit Firestore data, Monitor Cloud Functions and logs, Inspect Cloud Storage, Manage user authentication, Track production activity and alerts

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $2.99 | per month |
| Monthly Subscription | $4.99 | per month |
| Monthly Subscription | $9.99 | per month |
| Flash Sale | $12.99 | per 6 months |
| All Access | $12.99 | per year |
| Annual Plan | $19.99 | per year |
| Annual Plan | $34.99 | per year |
| Annual Plan | $49.99 | per year |
| All Access | $19.99 | one-time |
| All Access | $29.99 | one-time |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Thermals free?

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

### Is Firelog free?

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

### Which has better reviews, Thermals or Firelog?

Firelog is rated higher. Thermals averages 4.5 out of 5 from 28 ratings, while Firelog averages 4.6 from 42 ratings.

### Do Thermals or Firelog have ads?

Neither Thermals nor Firelog shows ads.

### Which is updated more often, Thermals or Firelog?

Thermals ships an update every 3 months, and Firelog fortnightly. Most recently, Thermals was updated on October 1, 2026 and Firelog on September 29, 2026.

### Which is more popular, Thermals or Firelog?

Thermals currently peaks at #184 in the App Store charts, and Firelog at #99. Chart position reflects recent download velocity rather than total install base.

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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.*