MarsBrowser vs S
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MarsBrowser
A fast and private web browser offering built-in ad and tracker blocking. It provides optional AI tools for summarizing and explaining web pages, along with flexible tab organization features like Spaces and split view.
- Built-in ad and tracker blocking
- Optional AI tools for page summarization
- Flexible tab organization with Spaces
- Split view and multiple windows
- Private browsing with local history storage
- Download saving and private tabs
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Mars is a fast, focused browser with powerful protection, flexible tab organization, and optional AI tools built around the page you are viewing. CLEANER BROWSING Built-in blocking helps stop ads, trackers, popups, and supported video ads without an extra extension. AI BESIDE THE PAGE Optional AI tools can summarize, explain, and help with the page you are viewing. Features are used only when you invoke them and may require an eligible Mars plan. ROOM FOR EVERY MISSION Keep work, research, and play separate with Spaces. On larger screens, use split view and multiple windows to keep related pages together. PRIVATE BY DESIGN Browse without a Mars account. Content blocking runs on-device, and your browsing history is stored locally by default. MORE OF THE WEB Save downloads, use private tabs, and choose your preferred search engine. SUBSCRIPTIONS AND TERMS Some features require an optional monthly Mars subscription. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel them in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://marbrowser.com/privacy - Support URL: https://marbrowser.com/support - Marketing URL (optional): https://marbrowser.com
S
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S - Tools for you Your Private Space for Files, Contacts & Secure Access S - Tools for you is a privacy-focused app designed to keep your personal data safe. Store private files, generate secure passcodes, use 2FA authentication, clean your media, and browse privately — all in one secure environment. Secret Folder (Media & Contacts) • Hide photos, videos, and personal files (paid feature) • Securely store private contacts (paid feature) • Protected access with password or biometrics (paid feature) • Keep sensitive data completely private (paid feature) Your personal space, fully protected. Media Cleaner • Delete duplicate and similar photos (paid feature) • Remove unnecessary videos (paid feature) • Clean up Live Photos (paid feature) • Organize and delete selfies and screenshots (paid feature) Free up storage and keep your gallery organized. Speaker Cleaner • Eject water and dust from your speakers using sound vibrations (paid feature) • Improve sound clarity and performance (paid feature) Keep your device speakers clean and working properly. Secure Passcode Generator • Generate strong and unique passcodes • Improve account security instantly • Create random, safe codes anytime Stronger security in seconds. 2FA Authentication • Secure two-factor authentication support • Protect your accounts with an extra layer of security • Fast and reliable code generation Keep your online accounts safe. Private Browser • Browse the internet privately (paid feature) • No history or tracking saved (paid feature) • Secure and anonymous browsing experience (paid feature) Stay private while you browse. Why S - Tools for you? • All-in-one privacy and security toolkit • Secure storage for files and contacts (paid feature) • Smart media cleaning tools (paid feature) • Device maintenance features (paid feature) • Strong authentication tools • Simple, fast, and user-friendly design Download S - Tools for you and take full control of your digital privacy. Subscription and premium features: Full access to Secret Folder — available exclusively for Premium users (paid feature) Unlimited 2FA accounts — 2 accounts are available for free without a subscription Unlimited password generation — 2 passwords are available for free without a subscription Advanced Private Browser protection — available exclusively for Premium users (paid feature) Full Media Cleaner access — available exclusively for Premium users (paid feature) Speaker Cleaner — available exclusively for Premium users (paid feature) Full Secure My Phone feature — available exclusively for Premium users (paid feature) Enjoy complete privacy protection, secure storage, and advanced security tools with Premium access. Subscription renews automatically unless canceled at least 24 hours before the end of the current billing period. Privacy Policy: https://sites.google.com/view/oleksandrabunchuk-privacypolic/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
MarsBrowser and S 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 · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MarsBrowser sells 2 in-app purchases, starting at $0.99 per month and S sells 1 in-app purchase, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.
MarsBrowser ships an update every 3 days, S every 6 days. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.
| Parameter | MarsBrowser | S |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 days — better | Every 6 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 16.6 — better |
| Further details — not scored | ||
| Size | 226 MB | 38 MB |
| Age rating | 17+ | 17+ |
| Developer | KeyDataAI | UK NEW HOMES LTD |
In-app purchases
MarsBrowser
- Basic$0.991 Month
- Mars Live$19.991 Month
S
- Protector Weekly3 Days trial$9.997 Days









