Comparison

MultiBrow vs SideSpace

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

Head to head
About

MultiBrow

Features
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MultiBrow is a browser in which every container has its own cookies and its own sign-ins. Stay signed in to the same service with several accounts at once and switch with a single tap, instead of signing out and back in over and over. Safari cannot do this: all Safari tabs share a single cookie store, so a second sign-in to the same service ends the first. Private Browsing separates sessions but discards them on close. MultiBrow keeps every sign-in persistent and isolated — using a separate WebKit data store per container, a system feature introduced with iOS 17. WHAT IT IS FOR • A personal and a work account on the same service, side by side • Several clients or tenants, each in its own container • Keeping a test and a production login apart • A second account without disturbing the first one in Safari FEATURES • An overview of all containers as the home screen — create, rename and delete them, each with its own symbol and colour; deleting removes the entire data store • A freely chosen start page per container; the app is not tied to any particular website • Bookmarks per container: save, rename, reorder • History per container, with search and grouped by day • Downloads with progress, preview and export to the Files app • Lock individual containers with Face ID, Touch ID or your device passcode • Find on page • Siri Shortcuts and Spotlight: open a container by voice or straight from search • A real iPad app on iPad: Split View, Stage Manager, all orientations, keyboard shortcuts • Switch from a bar at the top • An address field per container: type an address or search directly • Optionally stay on the start page: links to other sites then open in Safari • Automatic reload after the app has been in the background for more than 30 seconds, keeping pages current whose connection dropped meanwhile • Pull to refresh; long-press reload clears the cache without losing the sign-in • Up to twelve containers loaded at once; under memory pressure background containers unload automatically • Open the current page in Safari • Usage limits at a glance: when a website reports how much of an allowance is used up and when it resets, the overview shows this per container as bars — usage against elapsed time, so you can see at once whether it is going to be tight. Useful above all with AI services that work in hourly and weekly windows, such as claude.ai. The figures come from the website itself; MultiBrow only reads along and requests nothing • Keep the screen awake if you want to • Interface in German and English PRIVACY MultiBrow collects no data. No accounts, no analytics, no tracking, no advertising, no developer servers. Cookies and sign-ins stay on your device, separated per container, managed by Apple's WebKit. Bookmarks, history and downloaded files stay on your device as well. Unlocking a container is handled by the system; the app only learns whether it succeeded and never sees your biometric data. NOTE MultiBrow uses the system web engine. Websites behave as they do in Safari; their operators are responsible for their content and data processing.

About

SideSpace

Features
Read full description

SideSpace keeps several separate environments on one iPhone. Each Space has its own web sessions, its own notes, its own photos, and its own lock. TWO ACCOUNTS, ONE PHONE Sign in to the same service twice — one account in your Work Space, another in Personal — and the two never see each other. Each Space keeps its own cookies and its own sign-ins, so switching Space switches everything at once. No signing out, no re-entering passwords. WHAT LIVES IN A SPACE • Web apps you pin, each opening straight to the service you signed into in that Space • A browser for everything else, with its own tabs and history • Notes • Photos and videos, kept inside the Space and never added to your Photos library • A camera that saves directly into the Space it was opened from PRIVATE SPACES A Space can be marked Private. Private Spaces are not listed at all until you unlock them — their names stay hidden, not just their contents, so handing someone your phone does not show them what you keep separate. Unlock with Face ID, or with a passcode that is separate from your iPhone's own code. YOUR DATA STAYS ON YOUR PHONE There is no account to create and no server to sync to. Everything a Space holds is stored on your device. Export a backup to a file whenever you want one. STARTS WITH SOMETHING USEFUL Pick what a Space is for — work, selling, studying, creating — and it arrives with the apps that usually go with it. You see the full list and approve it before anything is created. A PROXY PER SPACE Spaces already keep separate logins, but they share one connection. Point a Space at your own proxy and its web traffic leaves by its own route, while your other Spaces are untouched. You bring the proxy — SideSpace runs no servers and sells no bandwidth. A NOTE ON WHAT THIS IS SideSpace runs services in isolated web sessions. It does not clone or modify any app, and it is not affiliated with, endorsed by, or sponsored by any service you add. Web sign-ins are not included in backups, and web push notifications are not available in a web session — if you need alerts from a service, keep its own app installed alongside. SideSpace Premium unlocks unlimited Spaces, private Spaces and the in-app camera. • Monthly — $2.99 per month • Yearly — $19.99 per year, with a 7-day free trial • Lifetime — $39.99, one-time purchase (not a subscription) Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Payment is charged to your Apple Account at confirmation of purchase. Manage or cancel anytime in Settings > Apple Account > Subscriptions. Privacy Policy: https://sangcaolabs.com/apps/sidespace/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

MultiBrow4 screens
SideSpace4 screens

Verdict

The call

MultiBrow and SideSpace are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

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

UpkeepUpdate frequency

MultiBrow ships an update every 4 days, SideSpace every 2 days. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

ScorecardNo meaningful differences
MultiBrow versus SideSpace: the parameters behind the verdict, then further details
ParameterMultiBrowSideSpace
PriceFreeFree
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size3 MB4 MB
Age rating17+17+
DeveloperChalet Kaiserblick GmbH & Co KGSang Cao

In-app purchases

None

MultiBrow

No in-app purchases

None

SideSpace

No in-app purchases

Questions

Is MultiBrow free?
MultiBrow is free to download, with no in-app purchases.
Is SideSpace free?
SideSpace is free to download, with no in-app purchases.
Do MultiBrow or SideSpace have ads?
Neither MultiBrow nor SideSpace shows ads.
Which is updated more often, MultiBrow or SideSpace?
MultiBrow ships an update every 4 days, and SideSpace every 2 days. Most recently, MultiBrow was updated on October 1, 2026 and SideSpace on September 30, 2026.

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