Comparison

ZKBio Zexus vs S3 Browser

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

Head to head
About

ZKBio Zexus

Features
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Stay connected to your ZKBio CVSecurity or ZKBio CVAccess system anytime, anywhere with ZKBio Zexus. Access your access control and video intercom system on the go, putting security management in the palm of your hand and making your security team more efficient in handling threats. For operations and maintenance personnel: Perform remote unlocking and cancellation of alarms. Quickly initiate a lockdown in case of danger. Manage online visitor registration to provide a better visitor experience. Send visitor invitations and handle registrations, offering a smooth experience for new visitors. Quickly track alerts and events through push notifications. For personnel: Your phone serves as your access pass. It allows you to invite visitors at any time. You can book suitable spaces and check your daily schedule. Communicate via intercom feature with friends or colleagues whenever necessary.

About

S3 Browser

Features
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A clean, simple browser for your S3 storage. Connect to Amazon S3 or any S3-compatible provider to browse, preview and manage your files. No ads, no accounts, no tracking. WORKS WITH YOUR PROVIDER Use AWS S3, or enter a custom endpoint (with a port, if you need one) for S3-compatible services such as Cloudflare R2, Backblaze B2, Wasabi, DigitalOcean Spaces, MinIO, Garage, Ceph and Exoscale. You can save several connections and switch between them. BROWSE AND FIND • Move through folders with the normal back gesture • Switch between list and grid views • Search, filter and sort to find objects quickly • See the details for any object PHOTOS AND VIDEOS • View photos and play videos natively, with no need to download them first • Step through every photo or video in a folder MANAGE FILES • Upload files from your device • Download or share any file • Select several files and share or save them in one go • Rename and delete objects, and create folders UPLOAD FROM ANYWHERE Use the share sheet in Photos, Files or any other app to send files straight to a bucket and folder you choose. PRIVATE BY DESIGN Your access keys are stored in the iOS Keychain. The app connects only to the endpoint you enter. There's no server in between, and nothing is collected or sent anywhere else.

Screenshots

ZKBio Zexus4 screens
S3 Browser4 screens

Verdict

The call

The clearest difference is price: ZKBio Zexus at Free against S3 Browser's $0.99. S3 Browser's advantage is update cadence (fortnightly vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

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

ZKBio Zexus is free to download; S3 Browser costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ZKBio Zexus ships an update every 4 months, S3 Browser fortnightly. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard2 real differences Ā· 4 level
ZKBio Zexus versus S3 Browser: the parameters behind the verdict, then further details
ParameterZKBio ZexusS3 Browser
PriceFree — better$0.99
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size130 MB19 MB
Age rating4+4+
DeveloperZKTeco Inc.Chris Sewell

In-app purchases

None

ZKBio Zexus

No in-app purchases

None

S3 Browser

No in-app purchases

Questions

Is ZKBio Zexus free?
ZKBio Zexus is free to download, with no in-app purchases.
Is S3 Browser free?
S3 Browser costs $0.99, with no in-app purchases.
Do ZKBio Zexus or S3 Browser have ads?
Neither ZKBio Zexus nor S3 Browser shows ads.
Which is updated more often, ZKBio Zexus or S3 Browser?
ZKBio Zexus ships an update every 4 months, and S3 Browser fortnightly. Most recently, ZKBio Zexus was updated on November 4, 2026 and S3 Browser on November 5, 2026.

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