Shady Encoding vs UnderMB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shady Encoding
Read full descriptionHide full description
Shady Encoding turns plain text into fun coded messages using simple, key-based transformations (think classic Caesar-style ciphers). Create a custom key, encode a message, and share it. To make sharing easy, you can export and import keys using QR codes. FEATURES • Encode and decode text with your own keys • Save and manage multiple keys (name them, reuse them) • Export keys as a QR code • Import keys by scanning a QR code • Copy or share encoded text via the iOS Share Sheet • Works offline — no account required IMPORTANT Shady Encoding is for puzzles, learning, and light obfuscation. It is not secure encryption and should not be used to protect sensitive information. “What’s New” (Version Notes) Initial release. Encode/decode messages with custom keys and share keys via QR codes.
UnderMB
Reduce the size of photos, videos, audio, and PDFs on your device. Select a target file size or use presets for common uploads like email or chat apps. Preview your compressed files before saving or sharing, with optional metadata removal.
- Compress images, videos, audio, and PDFs
- Choose target file size (KB/MB)
- Built-in presets for uploads
- Preview before saving
- Optional metadata removal
- Batch processing
Read full descriptionHide full description
UnderMB helps you reduce photo, video, audio, and PDF file sizes to fit common upload limits. Processing happens on your device. WHAT IT DOES • Choose a target size: 500 KB, 1 MB, 2 MB, 5 MB, or a custom value • Compress images, videos, audio files, and PDFs • Preview results before saving or sharing • Built-in presets for email, visa forms, WhatsApp, and similar uploads • Optional metadata removal (EXIF/GPS, PDF info) • Batch queue for multiple files • Save to Files or share from the app PRIVACY UnderMB does not require an account. Files are processed locally and are not uploaded to UnderMB servers. GOOD FOR • Forms and portals with file size limits • Smaller email attachments • Chat apps with upload caps • Reducing file size before sharing
Screenshots
Verdict
The clearest difference is ads: Shady Encoding at none against UnderMB's shown. UnderMB's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.2). On price 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Shady Encoding | UnderMB |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 11 days |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Sergey Tereshkin | CEMRE SIMSEK |
In-app purchases
Shady Encoding
No in-app purchases
UnderMB
No in-app purchases
Questions
Is Shady Encoding free?
Is UnderMB free?
Do Shady Encoding or UnderMB have ads?
Other comparisons















