Pinbook vs Sign
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pinbook
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Pinbook is a private, offline password manager for people who don’t want their secrets on someone else’s server. Trust matters, especially with a new indie app. Pinbook is built to minimize what you need to trust: • 100% local storage on your device • No backend, no cloud sync service, no external servers • No third-party libraries, no analytics, no ads, no tracking • Data saved as JSON files with Apple Complete Data Protection Store and organize • Save passwords, PINs, and secure notes • Group items by category (Home, Work, Personal, etc.) Generate strong passwords • Built-in generator for unique, high-strength passwords Fast access • Smart Stack widget support on Apple Watch for quick lookups Backup • Create backups of your saved items In-App Purchase • Free download includes up to 3 saved items • One-time purchase unlocks unlimited items
Sign
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Signature is a simple and easy-to-use electronic signature product Upload and scan various documents anytime, anywhere, quickly add signatures and share them with others Features & Highlights: —Supports uploading of various documents —Supports automatic and manual scanning of files —Scan file editing —Create multiple signatures —Sign documents quickly —Share with anyone in multiple ways Subscription information: There is a free subscription trial period After the free trial period, you can subscribe to unlimited access to all features in the app Subscriptions are charged weekly, monthly, or annually, and the fees are based on the subscription period. Payment will be deducted from iTunes account after confirmation of purchase You can turn off auto-subscription 24 hours before the end of your free trial, otherwise your free trial will automatically renew as a paid subscription when it expires. You can turn off automatic subscription 24 hours before the end of the current subscription, otherwise the subscription will automatically renew. Account will be charged for renewal within 24 hours prior to the end of the current subscription (including a free trial) and depends on the plan selected. You can manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Privacy Policy: https://sites.google.com/view/signaturefile/privacy terms of use: https://sites.google.com/view/signaturefile/team If you have any questions or concerns, please contact us at 704674386@qq.com.
Screenshots
Verdict
The clearest difference is iOS requirement: Sign at 14.0 against Pinbook's 17.6. On price, update cadence, 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
Both are free to download. Pinbook sells 1 one-off in-app purchase and Sign sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Pinbook | Sign |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, Apple Watch, Vision Pro | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 9 MB |
| Age rating | 4+ | 17+ |
| Developer | Cocoa Productions | Dalian Fuyuan Duoduo Technology Co., Ltd. |
In-app purchases
Pinbook
- Unlock Full Version$6.99
Sign
- 1 week$3.997 Days
- 1 month$7.991 Month
- 1 year$39.991 Year









