Comparison

Sync with S3 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

Sync with S3

Automatically back up your phone's photos and videos to S3 storage, preserving your album and folder structure. It mirrors your library, uploads edited media and Live Photos, and ensures your S3 storage matches your device without deleting any original files.

Highlights
  • Syncs photo library to S3
  • Preserves album and folder hierarchy
  • Uploads edited photos and videos
  • Supports Live Photos video component
  • One-way sync, no phone data deletion
  • Selective folder/album syncing
Read full description

Sync for S3 synchronizes your phone’s photo library, including the album and folder hierarchy, to your S3 storage. For users who like to organize their photos into folders and albums, Sync will also - Sync automatically creates folders and albums you may have created in your phone’s photo library on S3 storage. - Uploads the video component for Live Photos. - Uploads the edited versions of photos and videos. - Mirror or backup your photo library. - Synchronize your entire photo library or only certain folders and albums. In summary, each time you run Sync, it will make sure any changes to your phone’s photo library are updated on your S3 storage, overwriting, renaming, uploading, and deleting items on your S3 storage if needed. Sync will also NEVER delete any photos from your phone. Sync performs a ONE-WAY sync only, making your S3 storage match your phone’s photo library. Any changes made on your S3 storage will not be synced to your phone, rather, the changes on your S3 storage will simply be overwritten the next time you run a Sync. Free Plan The free plan is limited to syncing up to 3 top-level folders and albums and up to 200 photos. Premium Plan Our affordable premium plan removes all restrictions and unlocks access to all future features. Subscription Pricing and Terms - Annual or monthly subscription billing will start immediately after you subscribe and will auto-renew each year or month. - Subscriptions will automatically renew unless canceled at least one day before the renewal date within 24 hours before the end of the current period. Payment will be charged to your Apple ID account at the confirmation of purchase. You can manage and cancel your subscription by going to your account settings in the App Store. - Subscriptions are non-refundable, so please choose this option carefully. - Please refer to the In-App Purchases section for pricing. Terms of Use — https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy — https://sync.photosplus.app/privacy.php

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

Sync with S34 screens
2FA Authenticator4 screens

Verdict

The call

The clearest difference is rating: 2FA Authenticator at 5.0 against Sync with S3's 1.0. 2FA Authenticator also leads on update cadence (every 10 days vs every 2 months) and device support (4 vs 2). Sync with S3's advantage is iOS requirement (15.6 vs 18.6). 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. Sync with S3 sells 2 in-app purchases, starting at $2.99 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 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Sync with S3 ships an update every 2 months, 2FA Authenticator every 10 days. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 6 level
Sync with S3 versus 2FA Authenticator: the parameters behind the verdict, then further details
ParameterSync with S32FA Authenticator
PriceFreeFree
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings11
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS15.6 — better18.6
Further details — not scored
Size27 MB21 MB
Age rating4+4+
DeveloperPixegram, LLC俊峰 罗

Customer experience

Sync with S3

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

2FA Authenticator

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

In-app purchases

2 purchases

Sync with S3

Subscriptions2
  • Premium - Monthly$2.991 Month
  • Premium - Yearly$19.991 Year
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 Sync with S3 free?
Sync with S3 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, Sync with S3 or 2FA Authenticator?
2FA Authenticator is rated higher. Sync with S3 averages 1.0 out of 5 from 1 ratings, while 2FA Authenticator averages 5.0 from 1 ratings.
Do Sync with S3 or 2FA Authenticator have ads?
Neither Sync with S3 nor 2FA Authenticator shows ads.
Which is updated more often, Sync with S3 or 2FA Authenticator?
Sync with S3 ships an update every 2 months, and 2FA Authenticator every 10 days. Most recently, Sync with S3 was updated on October 2, 2026 and 2FA Authenticator on September 30, 2026.

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