# Airthings vs TechSheet

The clearest difference is rating: TechSheet at 5.0 against Airthings's 4.4. Airthings's advantage is in-app purchases (none vs 2) and ratings volume (3K vs 2). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. TechSheet sells 2 in-app purchases, starting at $4.99 per month. Airthings asks for nothing beyond the download.

TechSheet holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Airthings has 3K ratings behind it against 2, so its average is the more settled of the two.

Airthings ships an update fortnightly, TechSheet every 5 weeks. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Airthings | TechSheet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (3K ratings)](https://appshunter.io/ios/app/airthings/id1560329275/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/techsheet/id6759500959/reviews)** |
| Number of ratings | **3K** | 2 |
| Positive reviews | 32.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 103 MB | 6 MB |
| Requires iOS | **17.6** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Airthings ASA](https://appshunter.io/developer/1101077902) | [Robert Torres](https://appshunter.io/developer/1802270142) |

## What reviewers say

### Airthings

[App page](https://appshunter.io/ios/app/airthings/id1560329275)

Monitor and improve your indoor air quality with smart devices. Get real-time insights, track trends, and receive actionable advice to enhance focus, reduce allergies, and sleep better. Control your air purifier and stay informed about pollen forecasts.

**Highlights:** Quick device setup, At-a-glance air quality indicators, Detailed trend tracking, Air purifier remote control, 5-day pollen forecast, Air quality notifications, Personalized air reports

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple to understand and setup
- 🚀 Intuitive and easy to use app
- 🚀 Efficient and fast
- 🚀 Provides great information on air quality
- 🚀 Accurate and reliable sensor readings

**What reviewers complain about**

- 🐛 App has connectivity issues, often fails to sync
- 🐛 App is buggy and has many errors
- 🐛 Inaccurate or inconsistent sensor readings
- 🐛 Difficult to set up and connect devices
- 🐛 Lack of customization options for thresholds and notifications

**Reported bugs**

- App crashes frequently
- Unable to add new devices or accounts
- Incorrect color coding and data display
- Delayed or missing sensor data updates
- Bluetooth connectivity issues

**Requested features**

- Add HomeKit integration
- Allow custom thresholds and notifications
- Improve data visualization and historical trending
- Add more detailed information on air quality issues and remedies
- Provide an iPad-optimized version of the app


### TechSheet

[App page](https://appshunter.io/ios/app/techsheet/id6759500959)

Manage all your vehicle's maintenance records, documents, and service schedules in one centralized location. Track services, set reminders for upcoming maintenance, and store important vehicle documents. Connect to OBD-II devices for live diagnostics and automatic mileage updates.

**Highlights:** Log service history with costs and photos, Set mileage and time-based maintenance schedules, Store and track vehicle documents, Live OBD-II diagnostics and mileage sync, Generate PDF vehicle reports, Instant search across all records, iCloud sync across devices

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TechSheet Pro Monthly | $4.99 | per month |
| TechSheet Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Airthings free?

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

### Is TechSheet free?

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

### Which has better reviews, Airthings or TechSheet?

TechSheet is rated higher. Airthings averages 4.4 out of 5 from 3K ratings, while TechSheet averages 5.0 from 2 ratings.

### Do Airthings or TechSheet have ads?

Neither Airthings nor TechSheet shows ads.

### Which is updated more often, Airthings or TechSheet?

Airthings ships an update fortnightly, and TechSheet every 5 weeks. Most recently, Airthings was updated on October 12, 2026 and TechSheet on October 1, 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.*