Aura CO2 vs Ambient
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Aura CO2
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Knowing the CO2 concentration youβll be aware of your home/officeβs need for air renewal. This application will also let you know the temperature, humidity and pressure as well as outdoor air quality information, to easily act and improve your ventilation.
Ambient
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The purest way to find your flow. Ambient removes the overwhelming menus and endless choices of traditional sleep apps. We provide three expertly engineered soundscapes to help you navigate your day and night with ease. Three Channels. One Goal: Peace of Mind. RELAX: Decompress with ethereal textures designed to lower stress and quiet the mind. FOCUS: Block out the world with steady, lyric-free audio that enhances concentration and productivity. SLEEP: Drift into a deep, restorative slumber with low-frequency tones that stay consistent all night long. Why Ambient? Minimalist Interface: A distraction-free experience that stays out of your way. High-Fidelity Audio: Seamlessly looped, professional-grade ambient soundscapes. Background Play: Integration with iOS to play while you work or while your screen is locked. Instant Start: No setup required. Just open, tap, and listen. Whether you are battling a tight deadline, a racing mind, or a restless night, Ambient provides the perfect atmospheric backdrop. Simplicity is the ultimate relaxation.
Screenshots
Verdict
The clearest difference is update cadence: Ambient at every 3 days against Aura CO2's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Aura CO2 ships an update every 3 months, Ambient every 3 days. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.
| Parameter | Aura CO2 | Ambient |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 β better | 15.1 |
| Further details β not scored | ||
| Size | 59 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Elichens | ELMO OSKARI SAUKKO |
In-app purchases
Aura CO2
No in-app purchases
Ambient
No in-app purchases









