Comparison

Ask Frank vs Otto Voice

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

Head to head
About

Ask Frank

This AI-powered tool offers private, on-device search and document creation. It retrieves verified web information and generates structured documents with citations, all while keeping your data secure on your device. Ideal for professionals and students seeking accuracy and efficiency.

Highlights
  • On-device AI search engine
  • Automatic document generation
  • Verified source links and citations
  • Privacy-first design
  • Export documents
  • Supports API token customization
Read full description

Ask Frank is a private, on-device AI search and document creation tool designed for professionals, students, and anyone who values privacy, accuracy, and efficiency. It searches the live web, retrieves verified information, and turns it into clear, well-structured documents with full citations all directly on your iPhone or iPad. Nothing leaves your device. Smarter Search, Trusted Results Unlike typical AI chat systems, Ask Frank does not rely on outdated training data. It connects to real-time web sources to bring you the latest information and presents it in a form you choose. Whether you need a summary, analysis, or full report, the app organizes results into clean, readable documents complete with verified links and references. Work Securely and Efficiently Ask Frank runs entirely on your device using on-device AI. This means your data, prompts, and documents stay where they belong - under your control. No cloud upload, no third-party storage, and no hidden tracking. Its architecture is built for speed and energy efficiency, using up to eighty percent fewer tokens than traditional LLM-based workflows. The result is faster document creation and lower resource use. Key Features • Live AI search engine powered by on-device processing • Automatic document generator with working source links • Create reports, summaries, and research papers in seconds • Citation generator for transparent, reference-based output • Export your documents easily for editing or sharing • Privacy-first design - no data collection or background sync • Supports your own API token for advanced customization • Built for professionals, researchers, and learners who demand both accuracy and ethics An Ethical Approach to AI Ask Frank is more than another productivity app - it’s part of a new movement toward responsible, sustainable AI. By running locally, it consumes less energy than cloud-based tools and eliminates unnecessary data transmission. Every search and generation task happens privately, helping reduce the environmental footprint while maintaining top-tier performance. This ethical focus extends to transparency: each document includes citations and source links, so you can verify every piece of information used. It’s AI designed to support human judgment, not replace it. Designed for Everyday Productivity Use Ask Frank to: • Build professional reports and project briefs • Summarize complex research with proper citations • Generate learning materials and study notes • Collect trustworthy data without endless copy-paste • Keep sensitive work fully private on your device The app’s interface is simple, intuitive, and tuned for fast performance on iOS. You can start from a blank request, select a document type, and receive structured results ready to export in seconds. Built for Professionals and Students From researchers who need verified references to business users preparing quick reports, Ask Frank adapts to the task. It understands the balance between automation and control, giving you the speed of AI with the reliability of sourced information. Security and Control Your privacy is at the center of every interaction. Ask Frank does not store your queries, results, or API tokens on external servers. All activity remains on your device, encrypted and temporary, ensuring complete confidentiality for personal and professional use. Why Choose Ask Frank • Local, token-efficient AI search engine • No data collection or external storage • Transparent, verifiable information with sources • Faster, lighter, and more sustainable than cloud AI • Built around privacy, trust, and usability Get Started Ask Frank is currently available on a pay-per-document basis, with three free searches for new users. A subscription option with expanded access and additional templates will be introduced soon. Discover the power of local AI that respects your privacy and delivers accurate, cited information without compromise.

About

Otto Voice

Features
Read full description

Otto is your AI voice assistant for email and calendar. Talk to your inbox the way you'd talk to a person — archive, draft, send, schedule, and prioritize, all hands-free. WHAT YOU CAN DO Manage email by voice Ask Otto to read your latest message, draft a reply, send it, or archive it. No typing, no swiping, no thumb gymnastics. Find what actually matters Ask "What's my most important email?" and Otto surfaces the messages that need you — not the newsletters, receipts, and noise. Run your calendar without lifting a finger "Create an event for Thursday at 3 with Sarah." "What's on my calendar tomorrow?" "Move my 2pm to 4." Otto handles your Google Calendar the same way it handles your inbox. Set rules that work in the background Tell Otto "always archive promotional emails from Sephora" or "always archive emails that look like recruiter outreach," and Otto keeps your inbox clean even when the app is closed. PERFECT FOR - Walks, workouts, and time outside - Commutes on transit or as a passenger - Cooking, chores, and anything where your hands are busy - Inbox-zero people who want a faster way to triage PRIVACY AND CONTROL Otto connects to your Gmail and Google Calendar through Google's official sign-in. You stay in control: Otto only accesses what's needed to help you, and you can disconnect anytime from your Google account settings. Download Otto and start talking to your inbox.

Screenshots

Ask Frank3 screens
Otto Voice3 screens

Verdict

The call

The clearest difference is update cadence: Ask Frank at every 4 days against Otto Voice's every 3 weeks. On price, ads, in-app purchases and device support 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. Ask Frank sells 4 in-app purchases, starting at $2.99 per month and Otto Voice sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ask Frank ships an update every 4 days, Otto Voice every 3 weeks. The most recent releases landed on November 5, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Ask Frank versus Otto Voice: the parameters behind the verdict, then further details
ParameterAsk FrankOtto Voice
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.1
Further details — not scored
Size52 MB60 MB
Age rating4+17+
DeveloperOrion Technology Enterprises, Inc.ERIC ROBERT SAMORE

In-app purchases

4 purchases

Ask Frank

Subscriptions1
  • Ask Frank Premium Plan$2.991 Month
One-time3
  • Basic Pack$0.99
  • Gold Pack$1.99
  • Diamond Pack$2.99
1 purchases

Otto Voice

Subscriptions1
  • Otto Voice Monthly7 Days trial$4.991 Month

Questions

Is Ask Frank free?
Ask Frank is free to download, with in-app purchases available.
Is Otto Voice free?
Otto Voice is free to download, with in-app purchases available.
Do Ask Frank or Otto Voice have ads?
Neither Ask Frank nor Otto Voice shows ads.
Which is updated more often, Ask Frank or Otto Voice?
Ask Frank ships an update every 4 days, and Otto Voice every 3 weeks. Most recently, Ask Frank was updated on November 5, 2026 and Otto Voice on October 24, 2026.

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