Comparison

2FA Authenticator Password App vs 豆牙

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

Head to head
About

2FA Authenticator Password App

This app securely stores and displays time-based one-time verification codes for accessing online accounts. It offers features like automatic code refreshing, one-tap copying, and optional PIN protection for enhanced security. Manage your services easily through QR code scanning or manual entry.

Highlights
  • Stores and displays 2FA verification codes
  • Automatic code refresh every 30 seconds
  • One-tap code copying to clipboard
  • QR code scanning for adding services
  • Optional PIN code protection
  • Automatic app lock after minimization
  • Hide codes on app launch (Pro)
Features
Read full description

2FA Authenticator Password App is a secure authenticator app for storing and displaying one-time verification codes (2FA) used to sign in to email services, social networks, and work platforms. Verification Codes 1. All connected services are displayed in a single list 2. Each service shows its name, current 6-digit code, and a visual timer until the next refresh 3. Codes refresh automatically approximately every 30 seconds 4. Tap a code to copy it to the clipboard 5. A short confirmation message appears after copying Adding Services Add services by scanning a QR code or entering details manually QR Code Scan Use the device camera to scan a QR code provided by the service Manual Entry Enter a service name and secret key Managing Services Deleted services are fully removed from the app App Protection - Optional PIN code protection - The app locks automatically after being minimized - Confirmation is requested when reopening the app Privacy Options - Hide verification codes when the app is opened and show them only after user confirmation - Automatically remove copied codes from the clipboard after 30 seconds Free vs Paid Pro Access Free version • Add up to 5 services • All up to 5 added services generate verification codes without functional limitations Pro version • Ability to add an unlimited number of services • Option to hide verification codes on app launch • Option to automatically remove copied codes from the clipboard after 30 seconds 2FA Authenticator Password App helps keep your verification codes organized, protected, and always ready when you need them. Privacy Policy: https://docs.google.com/document/d/1Vq732hOrStMU0tKmPbPC5uhBvRhGD-_DCHbhIjDoKuQ/edit?usp=sharing Terms & Conditions: https://docs.google.com/document/d/18VYOIFti6wxRdPo61Cxvk4ohSPdvlxv2UzEIGLn98wY/edit?usp=sharing

About

豆牙

This AI assistant is tailored for Traditional Chinese users, offering a 100% Traditional Chinese interface and natural Taiwanese accent recognition. It excels at tasks requiring local context, slang, and cultural nuances, outperforming Western AI assistants for Chinese language needs. Features include voice and visual Q&A, translation, and assistance with academic, professional, and daily life tasks.

Highlights
  • 100% Traditional Chinese interface
  • Voice conversation with Taiwanese accent recognition
  • Visual Q&A with photo input
  • Real-time translation
  • Code writing, debugging, and optimization
  • Image generation from text
Features
Read full description

【豆牙 AI】The Ultimate AI Assistant for Traditional Chinese Users 豆牙 AI is built specifically for Taiwan users. Whether you need to write reports, translate documents, learn languages, or plan your day - just ask in one sentence. ▶ Why 豆牙 AI Beats Other AI Assistants - 100% Traditional Chinese interface (no Mainland China terminology) - Voice conversation with natural Taiwanese accent recognition - Visual Q&A: Take a photo and ask questions instantly - Free forever for basic features ▶ Better Than ChatGPT, Gemini, and Claude for Chinese Tasks Most Western AI assistants struggle with Traditional Chinese context, Taiwan-specific terminology, and local cultural references. 豆牙 AI is trained on Traditional Chinese content and understands Taiwanese expressions, slang, and cultural nuances that other AI assistants miss. ▶ Perfect For ▸Students - Solve math, physics, chemistry problems with step-by-step explanations - Get help with English, Japanese, Korean homework - Write essays, research papers, and thesis chapters - Summarize textbooks and create study notes ▸Working Professionals - Draft emails, meeting notes, and project proposals - Generate presentation outlines and PowerPoint content - Write, debug, and optimize code - Create resumes and prepare for interviews ▸Daily Life - Real-time translation across Chinese, English, Japanese, Korean, Thai, Vietnamese - Plan trips with restaurant and attraction recommendations - Get health advice on diet, exercise, and sleep - Help kids with homework and learn Zhuyin (Bopomofo) ▸Creative Work - Write novels, scripts, lyrics, and marketing copy - Generate images from text descriptions - Create video scripts and social media content - Get naming ideas for products, businesses, and babies ▶ What Users Say "Finally, an AI that understands Traditional Chinese properly" "Better than ChatGPT for Taiwan-specific questions" "My kids' homework helper - saves me hours every week" "Voice recognition works perfectly with Taiwanese accent" "Cleaner interface than other Chinese AI apps" ▶ Privacy & Security - All conversations encrypted end-to-end - Compliant with Taiwan Personal Data Protection Act - Your data is never used for model training - Delete conversation history anytime ▶ Disclaimer 豆牙 AI is an AI assistant tool. While we continuously improve accuracy, AI responses may occasionally contain errors or misunderstandings. Please cross-reference important decisions with other sources. We welcome your feedback through the in-app feedback feature. Subscription Terms: - Payment will be charged to your iTunes account upon confirmation - Subscription auto-renews 24 hours before the end of each period - Manage or cancel in Settings > Apple ID > Subscriptions - Cancellations take effect at the next billing cycle User Terms: https://sites.google.com/view/douya/douya-ai/user Privacy Policy: https://sites.google.com/view/douya/douya-ai/privacy Subscription Terms: https://sites.google.com/view/douya/douya-ai/subscription

Screenshots

2FA Authenticator Password App4 screens

Verdict

The call

The clearest difference is rating: 豆牙 at 4.5 against 2FA Authenticator Password App's 4.0. 豆牙 also leads on update cadence (daily vs every 3 weeks) and ratings volume (301 vs 4). 2FA Authenticator Password App's advantage is ads (none vs shown). On price, review sentiment, in-app purchases and monetization model 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. 2FA Authenticator Password App sells 3 in-app purchases, starting at $5.99 per 7 days and 豆牙 sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

豆牙 holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: 豆牙 has 301 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

2FA Authenticator Password App ships an update every 3 weeks, 豆牙 daily. The most recent releases landed on September 7, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
2FA Authenticator Password App versus 豆牙: the parameters behind the verdict, then further details
Parameter2FA Authenticator Password App豆牙
PriceFreeFree
Rating4.0 (4 ratings)4.5 (301 ratings) — better
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings4301 — better
Update frequencyEvery 3 weeksDaily — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS17.016 — better
Further details — not scored
Size11 MB71 MB
Age rating4+12+
DeveloperFOODS SH.P.K.SARA KRISTINE STRONG

Customer experience

2FA Authenticator Password App

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

豆牙

All ratings301 ratings
Positive88.7%
Neutral1.0%
Negative10.3%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

2FA Authenticator Password App

Subscriptions2
  • Authenticator Pro$5.997 Days
  • 2FA Authenticator Pro3 Days trial$5.997 Days
One-time1
  • 2FA Authenticator One-time$119.99
4 purchases

豆牙

Subscriptions3
  • 豆牙週會員 - 繁中問答潤稿・聊天寫作 包您搞定7 Days trial$3.997 Days
  • 豆牙月會員 - 寫作翻譯潤稿全包辦$5.991 Month
  • 豆牙年會員 - 智慧對話助手全年包$12.991 Year
One-time1
  • 豆牙永久解鎖 - AI助理終身包到底$29.99

Questions

Is 2FA Authenticator Password App free?
2FA Authenticator Password App is free to download, with in-app purchases available.
Is 豆牙 free?
豆牙 is free to download, with in-app purchases available.
Which has better reviews, 2FA Authenticator Password App or 豆牙?
豆牙 is rated higher. 2FA Authenticator Password App averages 4.0 out of 5 from 4 ratings, while 豆牙 averages 4.5 from 301 ratings.
Do 2FA Authenticator Password App or 豆牙 have ads?
豆牙 shows ads; 2FA Authenticator Password App does not.
Which is updated more often, 2FA Authenticator Password App or 豆牙?
2FA Authenticator Password App ships an update every 3 weeks, and 豆牙 daily. Most recently, 2FA Authenticator Password App was updated on September 7, 2026 and 豆牙 on September 24, 2026.

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