# Thermometers - Logic Puzzles — Daily brain & number games

> Minimalist logic puzzle game with thermometer-filling mechanics and hundreds of levels. (iPhone/iPad app by Feng Xia.)

- Source: https://appshunter.io/ios/app/thermometers-logic-puzzles/id6739959033 (this page in markdown: same URL + `.md`)
- Developer: [Feng Xia](https://appshunter.io/developer/1387862762)
- Category: Games, Education, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 4.00/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 131 MB
- Languages: American English, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China) and 3 more
- Released: 2025-01-02
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/thermometers-logic-puzzles/id6739959033/reviews.md

## What is Thermometers?

Fill every thermometer with pure logic - no random guessing, ever.

Thermometers - Logic Puzzles is a calm, focused brain game for fans of Sudoku, Nonogram, Picross, and number grid puzzles. Read the row and column clues, fill each thermometer from the bulb toward the tip, and feel the whole board click into place.

WHY YOU'LL LOVE IT

- 9,000+ logic puzzles, from quick 4x4 warm-ups to epic 17x17 boards
- Designed for pure deduction - every puzzle has a clean logical path
- 5 difficulty levels: Beginner, Normal, Hard, Expert, and Master
- Daily Challenge: a fresh calendar puzzle every single day
- Brain Test: a dedicated level path with extra-large expert boards
- Dark Mode and a cozy warm-paper look that is easy on your eyes
- Fill and Mark input modes, with a precise drag-friendly cursor
- Smart hints when you get stuck, and statistics to track your progress
- Works fully offline - perfect for flights and commutes
- Progress backed up to the cloud

HOW TO PLAY

1. Thermometers always fill from the round bulb toward the tip.
2. The numbers tell you how many cells must be filled in each row and column.
3. Mark the cells that must stay empty, fill in the rest.
4. Complete the board without breaking a single rule - that's the puzzle!

Easy to learn, deeply satisfying to master. Whether you want a two-minute coffee-break puzzle or a long evening of deduction, Thermometers gives your brain a workout without the stress - no time limit, play at your own pace.

Download now and make logic your daily habit!

For Terms of Use, please refer to Apple's Standard End User License Agreement:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Fill thermometers based on hints
- Hundreds of levels
- Clean and intuitive design
- Precision drag-and-fill controls
- Offline play
- Gradual difficulty progression

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Membership Subscription | $0.99 | per 7 days |
| Month Membership Subscription | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove ads pack | $1.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/thermometers-logic-puzzles/id6739959033/reviews.md

### 1/5 — Tutorial?

*2026-05-17*

Seems like a fun game, but there were no instructions on how to play.

**Developer response:** Hi, sorry for the late reply, and thank you for the feedback.

In version 2.0.0, we added a refreshed visual style, improved the Classic, Daily Challenge, and Brain Test screens, cleaned up the puzzle board visuals for different grid sizes, and polished settings, statistics, success, pause, and reward dialogs.

Most importantly, we addressed the instruction issue you mentioned. The game now includes a new interactive tutorial for new players, and “How to Play” is also available from Settings. The tutorial walks through the core rules step by step: filling thermometers continuously from the bulb to the tip, using row and column clues, switching between Fill and Mark modes, and marking cells that must stay empty.

Thanks again for pointing this out. Your feedback helped us improve the new-player experience.

## Frequently asked questions about Thermometers

### What is Thermometers - Logic Puzzle?

Thermometers - Logic Puzzle is a minimalist logic game where players fill thermometers based on row and column clues. It's designed to train logic skills and offers a clean interface with hundreds of levels.

### How do you play Thermometers - Logic Puzzle?

You play by filling the thermometers from the bulb to the tip, matching the provided row and column clues to solve each unique puzzle. The hints guide you through the process.

### Can I play Thermometers - Logic Puzzle offline?

Yes, Thermometers - Logic Puzzle supports offline play. You can enjoy the game anytime, anywhere without needing an internet connection.

### What kind of puzzles are in Thermometers - Logic Puzzle?

The game features hundreds of levels with grids ranging from 4x4 for beginners to 18x18 for advanced players. The difficulty gradually increases as you progress.

### Does Thermometers - Logic Puzzle have ads?

Yes, Thermometers - Logic Puzzle contains advertisements. It is a free game supported by ads and offers in-app purchases.

### What are the subscription options for Thermometers - Logic Puzzle?

Thermometers - Logic Puzzle offers a Weekly Membership Subscription for $0.99 and a Month Membership Subscription for $2.99. These subscriptions likely provide benefits such as ad removal or access to premium content.

### What devices is Thermometers - Logic Puzzle available on?

Thermometers - Logic Puzzle is available on iPhone, iPad, and iPod. It is designed for iOS devices.

### How often is Thermometers - Logic Puzzle updated?

The latest version of Thermometers - Logic Puzzle is 1.8.2, and it was last updated on February 18, 2026. This indicates a relatively recent update frequency.

## Version history (last 5 releases)

### 2.1.0 — 2026-07-09

Thermometers 2.1 is here!

- Added Dark Mode for comfortable play day or night
- Refined visual polish in light and dark themes
- Improved board readability on larger puzzles
- General stability and usability improvements

### 2.0.0 — 2026-07-02

Thermometers 2.0 is here!

- Refreshed warm-paper visual style across the game
- New interactive tutorial to help new players learn faster
- Improved Classic, Daily Challenge, and Brain Test screens
- Cleaner puzzle board visuals for small and large grids
- Refined settings, statistics, success, pause, and reward dialogs
- General polish and stability improvements

### 1.8.2 — 2026-02-18

Update new levels.

### 1.8.1 — 2025-10-27

Bug fixes and stability improvements for a flawless puzzle-solving journey.

### 1.8.0 — 2025-10-12

Major Update! Elevate Your Puzzle Experience!
• 【Cross-Device Sync】iCloud support is here! Seamlessly sync your progress across all your devices and play anywhere.
• 【900+ New Puzzles】Dive into 900 brilliantly designed new levels for endless brain-teasing fun!
• 【Smoother Performance】Bug fixes and stability improvements for a flawless puzzle-solving journey.

Update now and unlock the ultimate logic challenge!

## Apps similar to Thermometers

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Hidden Ships (Puzzle)](https://appshunter.io/ios/app/hidden-ships-puzzle/id6478134374) | 4.9 (12) | Free | Games |
| [Grids Thermometers](https://appshunter.io/ios/app/grids-thermometers/id6758331481) | — | Free | Games |
| [Tents - Trees puzzle](https://appshunter.io/ios/app/tents-trees-puzzle/id6752574156) | — | Free | Games |
| [Grids of Thermometers](https://appshunter.io/ios/app/grids-of-thermometers/id1071003654) | 4.6 (83) | Free | Games |
| [Logic Puzzles - Thermometers](https://appshunter.io/ios/app/logic-puzzles-thermometers/id6748007989) | 4.5 (2) | Free | Games |
| [Aquarium Logic Puzzle](https://appshunter.io/ios/app/aquarium-logic-puzzle/id6742514141) | 4.5 (6) | Free | Games |

## More apps by Feng Xia

- [Nonogram: Picture Cross](https://appshunter.io/ios/app/nonogram-picture-cross/id6743321702)
- [Number Blast: Merge & Explode](https://appshunter.io/ios/app/number-blast-merge-and-explode/id6747489405)
- [Picross: Color Logic Puzzles](https://appshunter.io/ios/app/picross-color-logic-puzzles/id6751720584)
- [Gradira: Photo Color Looks](https://appshunter.io/ios/app/gradira-photo-color-looks/id6756946815)
- [PicsDone](https://appshunter.io/ios/app/picsdone/id6777066497)

All apps by Feng Xia: https://appshunter.io/developer/1387862762

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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 2026-08-27.*