Comparison

DOHzel vs Lumen

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

Head to head
About

DOHzel

This app provides real-time threat detection and web protection to safeguard your device from viruses, adware, and espionage attempts. It also enhances privacy by cleaning sensitive information, ensuring your personal data remains secure while browsing.

Highlights
  • Real-time threat detection
  • Web threat protection
  • Proactive adware defense
  • Privacy enhancement
  • Virus scanning
Read full description

Enjoy unrivalled security with DOHzel, your trusted companion for iOS. Whether you're surfing on a public Wi-Fi network or your home network, DOHzel guarantees your security and privacy. Key Features: 1. Real-time Threat Detection: DOHzel constantly scans for viruses and threats, providing you with real-time protection against online dangers. 2. Web Threat Protection: Protect yourself from a wide range of web threats, from common viruses to sophisticated espionage attempts. DOHzel has your back. 3. Proactive Adware Defense: Say goodbye to annoying Adware. DOHzel takes proactive measures to keep your device clean and efficient. 4. Privacy Enhancement: We clean up sensitive information that could compromise your privacy, ensuring your personal data stays in safe hands. Download DOHzel now and take control of your digital security. Stay one step ahead of online threats and browse with confidence

About

Lumen

This app acts as a browser that remembers what you read, building a personal knowledge base from engaged pages. It allows you to ask questions in plain English about your reading history, with answers generated by an on-device AI. All your data remains private and offline.

Highlights
  • On-device AI knowledge base
  • Plain English questioning
  • Automatic content organization
  • Private and offline browsing
  • Tracker blocking
  • Source citation for answers
Read full description

Lumen is a browser with a memory. Most browsers forget the second you close a tab. Lumen does not. As you read, it quietly builds a personal knowledge base from the pages you actually engage with, and then lets you ask questions about any of it in plain English, answered by an AI model that runs entirely on your device. Nothing you read, nothing you ask, and nothing Lumen learns about you ever leaves your phone. WHAT IT DOES Lumen reads along with you. It distinguishes between pages you genuinely read and pages you opened and swiped away, and it extracts the meaningful content from the ones that stuck. That content gets summarized, embedded, and organized into a searchable knowledge base, all on-device. Later, when you want to find something, you do not have to dig through history or remember which tab it was in. You just ask: "What did I read about sourdough starters last week?" "Summarize that article about the new M-series chips." "What were the main arguments in that piece I read on Tuesday?" Every answer cites the pages it came from, so you can jump straight back to the source. AUTO-ORGANIZED Your reading sorts itself into a clean hierarchy: Topics, Websites, and Pages. Each level carries its own AI-generated summary, so you can scan what you have been learning at a glance. No tagging, no folders to maintain. Lumen handles it in the background. PRIVATE BY DEFAULT Lumen has no server. There is quite literally nothing to send. On-device LLM: a quantized Llama 3.2 model runs locally through Apple's MLX framework. Local SQLite storage: your reading history, summaries, and embeddings never leave the device. Built-in privacy: tracker blocking, third-party cookie blocking, and fingerprint resistance. Secure: HTTPS-only by default, with mixed-content blocking. No strings attached: no accounts, no sync, no telemetry, no ads. The AI weights download once on first launch (~700 MB). After that, everything works fully offline: browsing, reading, asking, answering. BUILT FOR iOS Lumen is written from scratch in Swift and SwiftUI, designed specifically for iPhone and iPad. It uses Apple's own frameworks wherever it can: NLEmbedding for semantic search, WKWebView for browsing, SQLite with FTS5 for full-text queries, and MLX Swift for on-device inference. Zero third-party trackers. Zero external services. WHO IT'S FOR While most browsers treat the web as a feed to scroll past, Lumen treats it as a library worth keeping. If you read a lot online and constantly think "I know I saw something about this recently but I cannot find it again," Lumen is for you. Researchers, students, writers, developers, and lifelong learners. You do not need to change how you browse. Browse normally, and Lumen takes care of the rest. REQUIREMENTS iOS 18 or later. iPhone with Apple Silicon recommended for the fastest on-device AI performance.

Screenshots

DOHzel4 screens
Lumen4 screens

Verdict

The call

The clearest difference is review sentiment: Lumen at 100% against DOHzel's 50%. Lumen also leads on rating (5.0 vs 3.3). DOHzel's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 18.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Lumen holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 50% of DOHzel's written reviews are positive against 100% of Lumen's.

Scorecard4 real differences · 6 level
DOHzel versus Lumen: the parameters behind the verdict, then further details
ParameterDOHzelLumen
PriceFreeFree
Rating3.3 (3 ratings)5.0 (4 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings34 — better
Update frequency—Every 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better18.0
Further details — not scored
Size4 MB28 MB
Age rating4+17+
DeveloperHafnova SADaniel Kosukhin

Customer experience

DOHzel

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Lumen

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

DOHzel

No in-app purchases

None

Lumen

No in-app purchases

Questions

Is DOHzel free?
DOHzel is free to download, with no in-app purchases.
Is Lumen free?
Lumen is free to download, with no in-app purchases.
Which has better reviews, DOHzel or Lumen?
Lumen is rated higher. DOHzel averages 3.3 out of 5 from 3 ratings, while Lumen averages 5.0 from 4 ratings.
Do DOHzel or Lumen have ads?
Neither DOHzel nor Lumen shows ads.

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