Comparison

MathNotes vs 2FA Authenticator

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

Head to head
About

MathNotes

This app offers a comprehensive suite for STEM students, combining handwritten note-taking with powerful math solving capabilities. It features an AI tutor, graphing tools, and specialized calculators, all designed to aid in learning and organization. Notes can be compiled into professional documents and exported as PDFs.

Highlights
  • Handwritten note-taking with Apple Pencil
  • Photo-based math problem solver
  • 12 specialized calculators
  • AI tutor for homework help
  • PDF import and annotation
  • Offline functionality
  • Export to formatted PDFs
Features
Read full description

The all-in-one math solver and study app. MathNotes combines Desmos-like graphing, Symbolab-like step-by-step solving, 12 specialized calculators, an AI tutor, and beautiful handwritten notes, all in one place. Write naturally - Handwrite with Apple Pencil or your finger, no keyboard needed - Keep notes handwritten or compile to publication-ready documents Solve anything - Snap a photo of any problem for instant solutions, graphs, and step-by-step explanations - 12 built-in calculators: graphing, scientific, matrix, symbolic, unit converter, and more - AI-powered help that actually understands your work Stay organized - Unlimited notebooks and folders - Tag definitions, theorems, and formulas to build your own knowledge base - Import, annotate, and markup PDFs and textbooks - Export beautiful, perfectly formatted PDFs Built for students - Privacy-first: your notes are encrypted and never used for AI training - Works offline - One app replaces Desmos, Symbolab, Photomath, and your note-taking app Subscription - Plus unlocks unlimited notes, cloud sync, and other basic features. Premium unlocks the AI chat, agentic LaTeX editor, and cloud sync. Everything else: notes, all 12 calculators, PDF support: is free with limited use. Try Premium free for 7 days! Terms of Use: https://mathnotes.io/terms Privacy Policy: https://mathnotes.io/privacy

About

2FA Authenticator

Securely manage your two-factor authentication codes and passwords with end-to-end encryption. Generate OTPs for thousands of services, sync across devices, and optionally monitor for password breaches. Works offline with no account required.

Highlights
  • Generate 2FA codes (TOTP & HOTP)
  • End-to-end encrypted backup & sync
  • Zero-knowledge security design
  • Password and API key vault
  • Password breach monitoring (Pro)
  • Import from Google Authenticator
  • Offline functionality
Features
Read full description

Moat keeps your two-factor codes and passwords behind a moat — encrypted on your device, and end-to-end encrypted in the cloud. No tracking. No ads. No one can read them but you. WHY MOAT • Generate 2FA codes (TOTP & HOTP) for thousands of services — Google, GitHub, Apple, Microsoft, Instagram and more • End-to-end encrypted backup & sync across your devices — secrets are encrypted on-device with AES-256-GCM before they ever leave • Zero-knowledge by design: we have no ability to read your codes or passwords • Your codes on Apple Watch — a glance at your wrist • A full Mac app — one subscription across iPhone, iPad, Watch and Mac • An optional vault for passwords AND API keys, stored in the system Keychain and revealed only after Face ID or Touch ID • Password breach monitoring — know if a saved login appears in a known data breach, checked privately so your password never leaves your device (Pro) • Switch from Google Authenticator in one scan — import otpauth links and photos too • Four hand-crafted app icons, light/dark themes, folders and instant search • Home Screen widgets and AutoFill for one-time codes • Works offline. No account required. SECURITY YOU CAN VERIFY Codes follow the open TOTP (RFC 6238) and HOTP (RFC 4226) standards. Keys are derived from your recovery key with PBKDF2-SHA256 (210,000 iterations). Lose the recovery key and not even we can restore your data — that's the point. FREE & PRO Use Moat free with up to 10 accounts and a built-in vault for 20 passwords and API keys. Go Pro for unlimited accounts and vault items, password breach monitoring, live codes on Apple Watch, and end-to-end encrypted backup & sync across your devices. Moat Pro is an auto-renewing subscription, available as a weekly or annual plan, with a free trial on eligible plans. Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless turned off at least 24 hours before the end of the current period; manage or cancel anytime in your App Store account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. Terms: https://auth-2fa.cloud/terms.html Privacy: https://auth-2fa.cloud/privacy.html

Screenshots

MathNotes4 screens
2FA Authenticator4 screens

Verdict

The call

The clearest difference is rating: 2FA Authenticator at 5.0 against MathNotes's 4.5. MathNotes's advantage is update cadence (every 4 days vs every 10 days) and ratings volume (8 vs 1). On price, ads, 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. MathNotes sells 8 in-app purchases, starting at $1.99 per month and 2FA Authenticator sells 4 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

2FA Authenticator holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: MathNotes has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

MathNotes ships an update every 4 days, 2FA Authenticator every 10 days. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
MathNotes versus 2FA Authenticator: the parameters behind the verdict, then further details
ParameterMathNotes2FA Authenticator
PriceFreeFree
Rating4.5 (8 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings8 — better1
Update frequencyEvery 4 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS15.1 — better18.6
Further details — not scored
Size173 MB21 MB
Age rating4+4+
DeveloperMark Miller俊峰 罗

Customer experience

MathNotes

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

2FA Authenticator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

8 purchases

MathNotes

Subscriptions5
  • iwrote Plus7 Days trial$1.991 Month
  • MathNotes Premium7 Days trial$9.991 Month
  • MathNotes Pro7 Days trial$9.991 Month
Show 2 more
  • MathNotes Plus7 Days trial$19.991 Year
  • MathNotes Pro7 Days trial$99.991 Year
One-time3
  • 1 Course Credit$24.99
  • 3 MathNotes Credits$54.99
  • 5 MathNotes Credits$74.99
4 purchases

2FA Authenticator

Subscriptions3
  • Moat Authenticator Pro3 Days trial$5.997 Days
  • Moat Authenticator Pro$12.991 Month
  • Moat Authenticator Pro7 Days trial$14.991 Year
One-time1
  • Moat Pro — Lifetime2 variants$29.99

Questions

Is MathNotes free?
MathNotes is free to download, with in-app purchases available.
Is 2FA Authenticator free?
2FA Authenticator is free to download, with in-app purchases available.
Which has better reviews, MathNotes or 2FA Authenticator?
2FA Authenticator is rated higher. MathNotes averages 4.5 out of 5 from 8 ratings, while 2FA Authenticator averages 5.0 from 1 ratings.
Do MathNotes or 2FA Authenticator have ads?
Neither MathNotes nor 2FA Authenticator shows ads.
Which is updated more often, MathNotes or 2FA Authenticator?
MathNotes ships an update every 4 days, and 2FA Authenticator every 10 days. Most recently, MathNotes was updated on October 8, 2026 and 2FA Authenticator on September 30, 2026.

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