Authenticator App! vs Gallery Slim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Authenticator App!
This app enhances online security by generating one-time passwords for two-factor and multi-factor authentication. It offers quick QR code scanning for easy account setup and supports offline code generation, ensuring access even without an internet connection. Protect your personal, work, and financial accounts with robust security features.
- Generate secure OTP & TOTP codes
- Quick QR code scanning
- Support 2FA & MFA security
- Face ID & Passcode protection
- Offline code generation
- Manage multiple accounts
- Backup & Restore functionality
Read full descriptionHide full description
Secure Your Accounts with Authenticator App! Authenticator App helps protect your online accounts with secure two-factor authentication (2FA) and multi-factor authentication (MFA). Generate one-time passwords (OTP) instantly and add an extra layer of security to your personal, work, and financial accounts. Features • Generate Secure OTP & TOTP Codes Create time-based one-time passwords (OTP/TOTP) for your online accounts with reliable and secure code generation. • Quick QR Code Scanning Add new accounts in seconds by scanning QR codes from supported websites and services. • Support 2FA & MFA Security Protect your accounts with Two-Factor Authentication (2FA) and Multi-Factor Authentication (MFA). • Face ID & Passcode Protection Keep your authentication codes secure with Face ID and device-level security protection. • Offline Code Generation Access verification codes anytime, even without an internet connection. • Manage Multiple Accounts Store and organize authentication codes for work, personal, and business accounts in one secure app. • Real-Time Verification Codes View active codes with automatic refresh and expiration countdown timers. • Backup & Restore Easily transfer and restore your authenticator accounts when changing devices. • Simple & Easy to Use Clean interface designed for quick setup and effortless account management. Why Use Authenticator App? Passwords alone are no longer enough. Authenticator App helps protect your accounts against unauthorized access by generating secure verification codes directly on your device. Whether you're securing email, cloud storage, social media, cryptocurrency exchanges, business tools, or work accounts, Authenticator App provides a reliable authentication solution. Perfect For • Personal accounts • Business accounts • Work logins • Cloud services • Cryptocurrency platforms • Social media accounts • Email security Subscription Details Payment will be charged to your Apple ID account upon confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current billing period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage and cancel subscriptions anytime through your App Store account settings. Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription.
Gallery Slim
Effortlessly declutter your photo library by identifying and removing duplicate, similar, and large media files. Review and confirm all deletions to maintain full control over your storage.
- Smart Clean for duplicate and similar photos
- Smart Scan for storage usage analysis
- Swipe Cleanup for quick deletion
- Large Video Tools with compression
- Convert Live Photos to Still
- Final Review before deletion
Read full descriptionHide full description
Clear photo clutter and reclaim iPhone storage—without giving up control. Gallery Slim finds duplicate photos, similar shots, screenshots, screen recordings, and large videos. Nothing is deleted until you review and confirm. CORE TOOLS 01 — Smart Clean Find duplicate and similar photos, screenshots, and screen recordings. Keep the best and remove the extras. 02 — Smart Scan See what is using your photo library storage and estimate how much space you can reclaim. 03 — Swipe Cleanup Swipe right to keep and left to remove. 04 — Large Video Tools Find storage-heavy videos and compress selected ones. See the original and estimated compressed size first. 05 — Live Photo to Still Keep the picture without the extra motion. 06 — Final Review Check selected items, change your choices, and confirm when ready. Gallery Slim does not collect your data. Download Gallery Slim and make room for more. SUBSCRIPTION INFORMATION We offer a 3-day free trial. After the trial, the subscription renews automatically at US$9.99 per week unless canceled at least 24 hours before the trial or current billing period ends. Your Apple Account is charged when the trial ends and at each renewal. Manage or cancel in your Apple Account settings. Privacy Policy: https://knappgl98.com/legal-privacy.html Terms of Service: https://knappgl98.com/terms-of-service.html
Screenshots
Verdict
The clearest difference is in-app purchases: Gallery Slim at none against Authenticator App!'s 9. Gallery Slim also leads on rating (4.5 vs 4.2). Authenticator App!'s advantage is update cadence (every 4 days vs every 2 weeks). On price, ratings volume, ads 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
Both are free to download. Authenticator App! sells 9 in-app purchases, starting at $4.99 per 7 days. Gallery Slim asks for nothing beyond the download.
Gallery Slim holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 11 and 11 respectively.
Authenticator App! ships an update every 4 days, Gallery Slim every 2 weeks. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.
| Parameter | Authenticator App! | Gallery Slim |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (11 ratings) | 4.5 (11 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 11 | 11 |
| Update frequency | Every 4 days — better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 78 MB | 45 MB |
| Age rating | 17+ | 4+ |
| Developer | VarMeta | 泽滨 朱 |
In-app purchases
Authenticator App!
- Weekly Pro Access$4.997 Days
- Weekly Pro Access3 Days trial$6.997 Days
- Week Premium3 Days trial$9.997 Days
Show 5 moreShow fewer
- Week Pro$9.997 Days
- Monthly Pro Access$19.991 Month
- Yearly Premium3 Days trial$34.991 Year
- Yearly Pro$39.991 Year
- Yearly Premium Access3 Days trial$39.991 Year
- Authenticator – Lifetime Access$59.99
Gallery Slim
No in-app purchases
Questions
Is Authenticator App! free?
Is Gallery Slim free?
Which has better reviews, Authenticator App! or Gallery Slim?
Do Authenticator App! or Gallery Slim have ads?
Which is updated more often, Authenticator App! or Gallery Slim?
Other comparisons















