Comparison

ZeroAuth vs KISS Lock

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

Head to head
About

ZeroAuth

Features
Read full description

ZeroAuth is a privacy-first authenticator app designed to keep your accounts safe without compromising your data. Generate secure one-time passwords (OTP) for all your accounts in one place. ZeroAuth is built with a strong focus on local security, meaning your sensitive data never leaves your device. Security First 1. Biometric authentication 2. Secure PIN protection 3. Automatic app lock after inactivity 4. Screenshot protection to prevent data leaks 5. Sensitive actions are protected in real time Simple & Fast 1. Scan QR codes instantly to add accounts 2. Clean, distraction-free interface 3. Quick OTP copy to clipboard 4. Smooth and responsive experience Built for Privacy 1. No tracking 2. No ads 3. No unnecessary permissions 4. Data processed locally on your device 5. No cloud dependency by default Backup & Restore 1. Export accounts securely via QR 2. Restore easily when switching devices 3. Designed to keep you in control of your data Why ZeroAuth? Unlike many authenticator apps, ZeroAuth focuses on real-world security: Prevents screenshots of sensitive data Locks instantly when needed Uses device-level security wherever possible Your accounts deserve more than just codes; they deserve protection. Start securing your digital life with ZeroAuth - An Optional Labs Group Security Product.

About

KISS Lock

Features
Read full description

KISS Lock turns your phone into the key for the locks you buy. Tap to claim a lock, tap to open it, and share access with the people you trust. No physical keys to lose, no codes to remember. HOW IT WORKS 1. Add your lock. Tap "Add a lock" and hold the top of your phone to it. Give it a name and it is yours. 2. Open with a tap. Pick the lock, tap Open, and hold your phone to it. 3. Share access. Send access to anyone with the Tapt app by their phone number. WHY KISS Lock - Nothing to carry. Your phone is the key. - Set up in seconds with just your phone number. - Share and unshare access whenever you want. - Works offline once your locks are on your phone. Tapt uses the NFC reader built into your phone, so make sure NFC is turned on. Questions? Email support@keepitsimplestorage.com.

Screenshots

ZeroAuth4 screens
KISS Lock4 screens

Verdict

The call

The clearest difference is update cadence: KISS Lock at every 11 days against ZeroAuth's every 5 weeks. 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

ZeroAuth ships an update every 5 weeks, KISS Lock every 11 days. The most recent releases landed on August 4, 2026 and September 19, 2026 respectively.

Scorecard1 real difference Β· 5 level
ZeroAuth versus KISS Lock: the parameters behind the verdict, then further details
ParameterZeroAuthKISS Lock
PriceFreeFree
Update frequencyEvery 5 weeksEvery 11 days β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad β€” betteriPhone
Requires iOS18.0 β€” better18.6
Further details β€” not scored
Size80 MB2 MB
Age rating4+4+
DeveloperChandan Kumar DashKISS Solutions LLC

In-app purchases

None

ZeroAuth

No in-app purchases

None

KISS Lock

No in-app purchases

Questions

Is ZeroAuth free?
ZeroAuth is free to download, with no in-app purchases.
Is KISS Lock free?
KISS Lock is free to download, with no in-app purchases.
Do ZeroAuth or KISS Lock have ads?
Neither ZeroAuth nor KISS Lock shows ads.
Which is updated more often, ZeroAuth or KISS Lock?
ZeroAuth ships an update every 5 weeks, and KISS Lock every 11 days. Most recently, ZeroAuth was updated on August 4, 2026 and KISS Lock on September 19, 2026.

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