Comparison

Aura CO2 vs Ambient

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Aura CO2

Features
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Knowing the CO2 concentration you’ll be aware of your home/office’s 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.

About

Ambient

Features
Read full description

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

Aura CO23 screens
Ambient3 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference Β· 5 level
Aura CO2 versus Ambient: the parameters behind the verdict, then further details
ParameterAura CO2Ambient
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 days β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 β€” better15.1
Further details β€” not scored
Size59 MB46 MB
Age rating4+4+
DeveloperElichensELMO OSKARI SAUKKO

In-app purchases

None

Aura CO2

No in-app purchases

None

Ambient

No in-app purchases

Questions

Is Aura CO2 free?
Aura CO2 is free to download, with no in-app purchases.
Is Ambient free?
Ambient is free to download, with no in-app purchases.
Do Aura CO2 or Ambient have ads?
Neither Aura CO2 nor Ambient shows ads.
Which is updated more often, Aura CO2 or Ambient?
Aura CO2 ships an update every 3 months, and Ambient every 3 days. Most recently, Aura CO2 was updated on November 7, 2026 and Ambient on November 6, 2026.

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