# Grids of Thermometers

> Logic puzzle game filling thermometer grids with mercury based on numerical clues. (iPhone/iPad app by Frozax Games.)

- Source: https://appshunter.io/ios/app/grids-of-thermometers/id1071003654 (this page in markdown: same URL + `.md`)
- Developer: [Frozax Games](https://appshunter.io/developer/510201851)
- Category: Games, Family, Puzzle
- Price: Free with in-app purchases
- Rating: 4.60/5 from 83 App Store ratings · 36 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 39 MB
- Languages: American English, Danish, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Norwegian Bokmål, Polish and 6 more
- Released: 2016-03-22
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/grids-of-thermometers/id1071003654/reviews.md

## What is Grids of Thermometers?

Grids of Thermometers delivers the relaxed fun of a pen-and-paper logic game right to your fingertips. In each level, you fill a grid of thermometers with mercury. Numbers on the grid edges tell you how many cells must be filled in each row and column.
No random guessing! Solve the levels with logic only.

FEATURES:
Thousands of levels
Exclusive new levels every day
No rush: play at your own pace by starting a level and completing it later
No Wi-Fi? Enjoy playing offline
Multiple grid sizes for varied difficulty
Ability to zoom in and move the grid on smaller devices

Follow us to get news and updates:
facebook.com/frozax
twitter.com/frozax
www.frozax.com

Terms of use: https://www.frozax.com/legal#tac
Privacy policy: https://www.frozax.com/legal#privacy

## Key features

- Thousands of levels
- Daily new levels
- Play at your own pace
- Offline play
- Multiple grid sizes
- Zoom and pan grid

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Subscription | $4.49 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| All packs! | $5.99 | one-time |
| Classic Pack D | $0.99 | one-time |
| Classic Pack E | $0.99 | one-time |
| Classic Pack H | $0.99 | one-time |
| Classic Pack I | $0.99 | one-time |
| Classic Pack J | $0.99 | one-time |
| Classic Pack L | $0.99 | one-time |
| Classic Pack N | $0.99 | one-time |
| Daily Pack | $0.99 | one-time |
| Lots of hints | $1.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Classic Pack O | $0.99 | one-time |
| Classic Pack M | $0.99 | one-time |
| Classic Pack F | $0.99 | one-time |
| Some hints | $0.99 | one-time |
| Classic Pack K | $0.99 | one-time |
| Classic Pack G | $0.99 | one-time |


## Recent user reviews (10 of 36)

All indexed reviews: https://appshunter.io/ios/app/grids-of-thermometers/id1071003654/reviews.md

### 5/5 — Vraiment top

*2025-07-17*

En casse tête vraiment cool avec une idée innovante. Ce n’est pas courant. Et les systèmes d’aide apprenne a jouer. C’est top

### 2/5 — Ads have doubled

*2025-01-17*

I’m a big fan of the game but the number of ads you have to sit through to get a free daily have been doubled.

### 1/5 — Lost games I paid for

*2024-10-02*

Paid for all the games of a certain date, now I can’t get back far enough to see that date anymore and don’t have access! I don’t get to finish the games I paid for

### 5/5 — Never disappoints

*2023-09-04, version 2.2.17*

Frozax games never disappoints! Logical games that are SO fun especially when you go from staring your first puzzle struggling to understand the logic, and end up solving a 11x11 grid no problem. Really rewarding, exceptionally simple, and even the earliest games with the simplest of graphics are top tier. Please keep making these games!! I’ve played and replayed them all!!

### 5/5 — Addictive logic game

*2023-07-15, version 2.2.17*

Recommended

### 5/5 — Great logic puzzle

*2022-06-20, version 2.2.11*

Requires purely logical thinking to solve.
Every problem is solvable.

If you buy a package? Get the 14x14 grids. They will challenge your brain

### 5/5 — Puzzle

*2022-05-01, version 2.2.11*

An unusual game with logic and I am hooked.

### 4/5 — Good, clean fun

*2022-02-02*

It’s a good puzzle and a well made app. Buying extra levels is a reasonable price too.

### 2/5 — Used to be great

*2022-01-14*

Really sad I had to update my ipad. Was putting it off to keep being able the play the old version.

My main issues are the new click method (before you click one red, then drag to add more. Now you click one and if you drag it makes it white. Please add an option to use the old or new depending on what we are used to.)

The other is the layout. I dont use my ipad in portrait, and this is now only that. I played before in Landscape, and want to. This is my biggest reason not to play anymore.

Especially sad because Just bought the rest of the packs a few months ago.

One other issue is the new colors. Having a toggle between the old and new colors as well would be cool. Why not just make the old app available to toggle to if we preferred it?

### 5/5 — Génial

*2020-11-28*

Le Sudoku ne m’apportait plus de plaisir. grâce a cette application enfin on retrouve de la logique de l’intelligence. C’est devenu maintenant un rituel une véritable drogue !

## Frequently asked questions about Grids of Thermometers

### What is Grids of Thermometers?

Grids of Thermometers is a logic puzzle game where you fill a grid of thermometers with mercury. Numbers on the grid edges indicate how many cells must be filled in each row and column, requiring logical deduction to solve.

### What are the key features of this game?

The game offers thousands of levels, exclusive new levels daily, and the ability to play at your own pace without time pressure. It also supports offline play, features multiple grid sizes for varied difficulty, and allows zooming and panning on smaller screens.

### Is Grids of Thermometers free to play?

Yes, the app is free to download and play. It includes advertisements and offers in-app purchases, which may be used to enhance the gameplay experience or remove ads.

### Can I play Grids of Thermometers offline?

Yes, a key feature of Grids of Thermometers is its offline play capability. You can enjoy solving puzzles without needing an internet connection, making it convenient for travel or areas with limited Wi-Fi.

### Who is this game designed for?

This game is designed for players who enjoy pen-and-paper logic puzzles and are looking for a digital, accessible version. It appeals to those who appreciate games that require strategic thinking and deduction rather than random guessing.

## Version history (last 5 releases)

### 2.2.32 — 2023-12-11

GDPR regulations improvements

### 2.2.31 — 2023-11-29

Fix crash on iOS 12

### 2.2.30 — 2023-11-27

Improved support of GDPR and European regulations
Stability improvements

### 2.2.29 — 2023-11-26

Improved support of GDPR and European regulations
Stability improvements

### 2.2.28 — 2023-11-21

Improved support of GDPR and European regulations
Stability improvements

## Apps similar to Grids of Thermometers

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Thermometers - Logic Puzzles](https://appshunter.io/ios/app/thermometers-logic-puzzles/id6739959033) | 4.0 (4) | Free | Games |
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| [LogiBrain Tents and Trees](https://appshunter.io/ios/app/logibrain-tents-and-trees/id1506363379) | 4.4 (10) | Free | Games |
| [Camping master : tents & trees](https://appshunter.io/ios/app/camping-master-tents-and-trees/id1635345196) | 5.0 (1) | Free | Games |
| [100s Logic Games - Sudokus](https://appshunter.io/ios/app/100s-logic-games-sudokus/id1660755706) | 4.7 (23) | Free | Games |
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## More apps by Frozax Games

- [Hashi Puzzles: Bridges Islands](https://appshunter.io/ios/app/hashi-puzzles-bridges-islands/id581613569)
- [Boats Solitaire Puzzles](https://appshunter.io/ios/app/boats-solitaire-puzzles/id589868463)
- [Hashi Extreme Puzzles](https://appshunter.io/ios/app/hashi-extreme-puzzles/id605682835)
- [Mirrors & Reflections Puzzles](https://appshunter.io/ios/app/mirrors-and-reflections-puzzles/id640827566)
- [Tents and Trees Puzzles](https://appshunter.io/ios/app/tents-and-trees-puzzles/id1279378379)

All apps by Frozax Games: https://appshunter.io/developer/510201851

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*