Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2022	Oct. 31, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 30, 2022
Current Fiscal Year End Date	--12-31
Entity File Number	001-39343
Entity Registrant Name	AKOUOS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	81-1716654
Entity Address, Address Line One	645 Summer Street, Suite 200
Entity Address, City or Town	Boston
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02210
City Area Code	857
Local Phone Number	410-1818
Title of 12(b) Security	Common Stock, $0.0001 Par Value per Share
Trading Symbol	AKUS
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		36,946,211
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001722271
Amendment Flag	false