Private Library vs OBWallet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Private Library
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A Calibre iOS client that connects to Calibre's content server. Note! This is for those who manage e-books with calibre.That the app does not provide any books. - You can browse the eBook in Calibre. - Monitor the health status of Calibre content services in real time. - You can sort e-books based on different criteria. - View the details of the eBook. - Different libraries can be switched, just like a real bookshelf. - You can switch between different content servers.
OBWallet
This application offers advanced security for digital assets using Multi-Party Computation (MPC) technology and a no single-point-of-failure design. It allows users to create wallets without seed phrases and connect using traditional Web 2.0 methods, supporting multiple blockchain networks.
- Multi-Party Computation (MPC) security
- No seed phrase wallet creation
- Web 2.0 connection methods
- Support for BTC, EVM, Move, and more
- Automatic chain switching
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Advance Security Scheme · Secured by Multi-Party Computation (MPC) Technology · No single-point-of-failure security design · Account reset and recovery through Threshold Signature Scheme (TSS) · Server-side identity validation Effortless for Everyone to Connect · Create a wallet without a seed phrase · Connect with traditional Web 2.0 methods · Support BTC, EVM, Move, and others · Automatically switch chain based on DApp
Screenshots
Verdict
The clearest difference is price: OBWallet at Free against Private Library's $1.99. OBWallet also leads on update cadence (monthly vs every 18 months). On ads, in-app purchases, device support and iOS requirement 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
OBWallet is free to download; Private Library costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Private Library ships an update every 18 months, OBWallet monthly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Private Library | OBWallet |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 18 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 113 MB |
| Age rating | 4+ | 17+ |
| Developer | 艳华 顾 | JXJL Inc. |
In-app purchases
Private Library
No in-app purchases
OBWallet
No in-app purchases
