PDF Mpjex vs KeyMemo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Mpjex
This app allows you to create and edit PDF documents on your iPhone and iPad. Features include scanning, merging, reordering, and protecting PDFs with passwords. You can also extract pages, images, and text from existing documents.
- Scan documents
- Create PDF from photos/web
- Merge and extract PDFs
- Delete, rotate, reorder pages
- Password protect PDFs
- Extract images and pages
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PDF Mpjex is a PDF maker and editor and PDF Scanner app on iPhone & iPad. - PDF maker • Scan Document • Create PDF With Photos • Create Blank PDF • Create PDF With Web • Import From Files • Merge PDF files • Extract PDF - PDF Editor • Delete Pages • Rotate Pages • Reorder Pages • Insert Blank Page • Insert From Photos • Insert From File • Markup • Extract PDF pages • Password protect a PDF • Extract PDF images : png jpg Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
KeyMemo
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KeyMemo is a password manager designed for iPhone and iPad. Store and organize website accounts, app logins, notes, and related information in one secure place. Quickly search and manage your entries with categories, tags, and favorites. KeyMemo does not operate its own cloud storage service for passwords. Data protection relies on Apple technologies such as device security and iCloud Keychain, depending on your system settings and iCloud configuration. Features: * Password vault with create, edit, delete, and search support * Categories, tags, and favorites for better organization * Biometric unlock using Face ID or Touch ID * Optional master password protection * Strong password generator with customizable options * Security checkup for weak, short, or reused passwords * Clipboard auto-clear options for sensitive information * Local-first experience focused on privacy Premium Features: * More storage entries * Custom app icons and themes * iCloud sync related capabilities * Import and export support for CSV, JSON, and KeyMemo backup files Important Notes: * iCloud sync requires an Apple ID and iCloud Keychain enabled on your device * Initial synchronization may take time due to system-level delays * Please keep exported files and backup passwords secure KeyMemo uses Face ID and Touch ID only for app unlock and sensitive operations. No password manager can guarantee absolute security. Please also protect your device passcode, Apple ID, and keep your system updated. Thank you for choosing KeyMemo.
Screenshots
Verdict
The clearest difference is ads: KeyMemo at none against PDF Mpjex's shown. KeyMemo also leads on update cadence (daily vs every 6 weeks). PDF Mpjex's advantage is iOS requirement (15.0 vs 17). On price, 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. PDF Mpjex sells 3 in-app purchases, starting at $0.99 per month and KeyMemo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
PDF Mpjex ships an update every 6 weeks, KeyMemo daily. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | PDF Mpjex | KeyMemo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (324 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 324 — better | — |
| Update frequency | Every 6 weeks | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17 |
| Further details — not scored | ||
| Size | 26 MB | 12 MB |
| Age rating | 17+ | 4+ |
| Developer | Beijing Yima Network Technology Co., Ltd. | 超 刘 |
Bugs and requests
PDF Mpjex
Reported bugs
1 issue- 🐛 App crashes when viewing drawings
Requested features
2 requests- 💡 Add automatic table of contents generation
- 💡 Ability to scan up to 24 pages at once, then merge
KeyMemo
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PDF Mpjex
- PDF Editor & Maker Pro Monthly$0.991 Month
- PDF Editor & Maker Pro Yearly$9.991 Year
- PDF Editor & Maker Pro$4.99
KeyMemo
- KeyMemo Premium$2.99









