Slean vs Bionic Reading® Fonts
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slean
This app securely cleans your photo and video gallery by processing everything locally on your device. It helps free up storage space by finding duplicates, compressing files, and allows for AI-powered photo editing without uploading your data.
- AI Photo Editing
- Duplicate Detection
- Smart Compression
- On-Device Processing
- On This Day Feature
- Image Resizer
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Slean is the privacy-first photo & video cleaner that works entirely on your device — nothing leaves your phone. Lightweight at just 15MB, it's built for secure, local management of your gallery — protecting your privacy while freeing up space. No cloud uploads. No tracking. No hidden data collection. No Ads. All basic features are free. Slean processes every photo, video, and scan locally; so your private moments stay yours. NEW: -Pixel Stretch Effects Create trendy pixel stretch edits from your photos in seconds. Turn ordinary pictures into stylish, social-ready visuals with a modern stretched-motion look. - On This Day View all photos taken on this date across years and make cleanup easier by tackling them day by day. - AI Photo Editing With AI (powered by Google Gemini 3 Pro Image - a.k.a Nano Banana 2 Pro), you can transform photos just by typing what you want. Ask to remove a person in the background, change a T-shirt’s color, add glasses, or turn the sky into a sunset — the AI applies your edits quickly. - A complete redesign. Slean now features a modern look fully aligned with iOS 26’s Liquid Glass design. Every screen has been refreshed for clarity and consistency, with updated visuals and system-style interactions across the app. ** Why Choose Slean? ** Unlike other “cleaner” apps, Slean never sends your media to servers or AI systems. Every scan, sort, and delete is done offline, keeping your personal data safe. Download Slean for free today to free up space without giving up your privacy. Key Features: • Pixel Stretch Effects: Create trendy stretched-motion photo edits for social media • AI Photo Editing : Describe the change — remove people, recolor clothes, add glasses, turn skies to sunset — AI edits the photo instantly • Image Resizer: Instantly resize photos for Instagram Stories (9:16), posts (4:5), or square (1:1) with 7 presets, an orientation toggle, and custom backgrounds • On This Day: View all photos taken on this date across different years and declutter your memories day by day • Privacy-First: 100% on-device processing • Sort & Filter: Organize media by size, date, or type (photos, videos, screenshots, favorites, duplicates) • Duplicate Detection: Find and delete exact or similar copies instantly • Smart Compression: Reduce file sizes without losing quality; save as copies or replace originals • Crop & Rotate: Adjust images without leaving the app • Size-Based Search: Quickly locate large files (10MB, 50MB, 1GB, etc.) • Bulk Delete: Select multiple files and wipe them in one tap • Detailed View: Preview in full screen, view file details, share, move, or compress • Statistics: See exactly how much space you’ve saved Download Slean free to quickly find, compress and delete large files in your gallery and solve your storage problems! ---- Slean operates entirely locally on your device. It does not collect, store, or transmit any data or information (except subscription related data for PRO features and optional AI editing feature). All photo-related processing is performed within the device. User privacy is Slean's top priority; we respect the confidentiality of your data. Privacy Policy: https://slean.app/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Bionic Reading® Fonts
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Bionic Reading® Fonts is the upgrade for your eyes – as a real font, installed directly on your iPhone and iPad. The patented Bionic Reading® method visually emphasizes words, so your eyes find orientation faster. Once installed, use it in any app that offers its own font picker. ONE SUBSCRIPTION, ALL YOUR DEVICES. Your subscription is tied to your Apple ID, not to a single device. Once subscribed, install the Bionic Reading® Fonts on iPhone and iPad – at no extra cost. THREE PACKAGES. • Bionic Reading®: Sans Serif, Fixation 1–5, 10 styles • Bionic Reading® Serif: Serif, Fixation 1–5, 10 styles • Bionic Reading® Bundle: Both families, Fixation 1–5, 20 styles WHERE THE BIONIC READING® FONTS WORK. Once installed, your Bionic Reading® Fonts appear system-wide under Settings→ General→ Fonts→ My Fonts. You can use them in any app that offers its own font picker. On iPhone and iPad: • Apple Pages, Keynote, Numbers • GoodNotes • Procreate (on iPhone: Procreate Pocket) • and many more. Additionally on iPad: • Affinity Designer, Photo, Publisher • Final Cut Pro for iPad • and many more. Whether an app supports custom fonts is always up to that app. WHERE THE BIONIC READING® FONTS DON’T WORK. Apple doesn’t allow custom fonts everywhere. They definitely don’t work in: the system interface (Home Screen, Settings), Apple Notes, Messages/iMessage, Safari, Apple Books, or virtually all social media and messenger apps such as Instagram, TikTok, or WhatsApp – these apps always use their own, fixed fonts. Currently, they also don’t work in Microsoft Word, Excel, or PowerPoint, since these apps don’t support custom fonts – on iPhone and iPad alike. WHO IS THE APP FOR? For everyone who reads and writes a lot – on iPhone as well as iPad. For school, university, work, and creative projects in apps like Pages, GoodNotes, or Procreate. Many people with ADHD, dyslexia, or other reading difficulties report that Bionic Reading® helps them grasp and understand content faster. Bionic Reading® is not a medical product and does not replace diagnosis or therapy. But for many people, it can be a real “Game Changer” in everyday life. MORE POSSIBILITIES ON MAC. On the Mac, Bionic Reading® opens up even more possibilities – as a classic desktop font, usable in virtually any program. The Bionic Reading® Fonts for Mac are a separate product, available directly at bionic-reading.com. ALSO FOR CHAT AND SOCIAL MEDIA APPS. If you’d like to use Bionic Reading® in chat and social media apps specifically, we recommend our app “Bionic Reading® Font Keyboard” (available separately on the App Store) – it works on a different principle and writes Bionic Reading® directly in virtually any typing app. A FAIR SUBSCRIPTION FOR ALL FEATURES. With your subscription, you get full access to install the Bionic Reading® Fonts included in your chosen package. Subscriptions are billed monthly or annually at the selected rate. You’re supporting not just an app, but the idea of making reading easier, more beautiful, and more accessible. Terms of Use: https://bionic-reading.com/bionic-reading-font-software-license-agreement/ TYPOGRAPHY. DESIGN. SWITZERLAND. Bionic Reading® comes from Switzerland. With over 30 years of typography experience, we know that small details make a big difference: how a word looks, where the eye stops, and how quickly text is understood. That is exactly why Bionic Reading® was developed. INTERNATIONAL AWARDS FOR BIONIC READING®. Bionic Reading® is a patented method and has received international awards. • German Innovation Award 2023: Gold (highest distinction) • German Design Award 2023: Gold (highest distinction) The one and only from Switzerland is a “Life Changer” for Lisa, a “Game Changer” for Tommy and “Absolutely Mind Blowing” for Kelly.
Screenshots
Verdict
The clearest difference is update cadence: Slean at every 2 days against Bionic Reading® Fonts's every 6 days. Slean also leads on iOS requirement (15.0 vs 17.0). 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
Both are free to download. Slean sells 11 in-app purchases, starting at $2.99 per month and Bionic Reading® Fonts sells 6 in-app purchases, starting at $4.90 per month. Whichever you choose, the download price is not the number that matters.
Slean ships an update every 2 days, Bionic Reading® Fonts every 6 days. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.
| Parameter | Slean | Bionic Reading® Fonts |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (14 ratings) — better | — |
| Positive reviews | 87.5% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 2 days — better | Every 6 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 69 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Emre ERTUNC | Bionic Reading AG |
In-app purchases
Slean
- Slean Pro Monthly Subscription1 Month trial$2.991 Month
- Slean Pro Monthly Subscription7 Days trial$2.991 Month
- Slean Pro Weekly Subscription7 Days trial$5.997 Days
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- Slean Pro Annual Subscription$29.991 Year
- 5 AI Image Generation Tokens$0.99
- Short Coffee$0.99
- Tall Coffee$1.99
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- 20 AI Image Generation Tokens$2.99
- Grande Coffee$2.99
- 50 AI Image Generation Tokens$4.99
- JET FUEL$4.99
Bionic Reading® Fonts
- Bionic Reading®$4.901 Month
- Bionic Reading® Serif$4.901 Month
- Bionic Reading® Bundle$7.901 Month
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- Bionic Reading®$49.001 Year
- Bionic Reading® Serif$49.001 Year
- Bionic Reading® Bundle$79.001 Year
Questions
Is Slean free?
Is Bionic Reading® Fonts free?
Do Slean or Bionic Reading® Fonts have ads?
Which is updated more often, Slean or Bionic Reading® Fonts?
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