10bII+ vs Stock Proof
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
10bII+
This app is a financial calculator that replicates the functionality of a popular physical calculator. It offers basic functions for free, with advanced financial worksheets available through a one-time purchase. Features include interactive prompts and register views to help users understand and remember calculations.
- Full HP 10bII+ functionality
- Interactive prompts and recipes
- Register views for stored values
- Basic calculator functions included
- Advanced financial worksheets via IAP
- Customizable recipe recording
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The 10bII+ is a complete reimplementation of the full functionality of the popular HP 10bII+ financial calculator. In addition to providing 10bII+'s look & feel and functionality, we have modernized the app with features such as recipes, interactive prompts, and register views. This free version provides basic calculator functions, Math, Trigonometry, Memory, Interest Conversion, and Date functions. A one-time In-App-Purchase is required to access the Time-Value-of-Money (TVM), Amortization, Cash Flow, Bond, Depreciation, Statistics, Profit Margin, and Breakeven worksheets. The 10bII+ modern addresses two critical issues for the user: (i) knowing what is stored in each of the calculator's internal registers, (ii) remembering the exact key sequences for getting specific calculations done. The register views, accessible in the main screen, provides visibility into various register groups. You can switch between different groups of registers (such as Financial, Cash Flow, Bond, etc.), and inspect stored values. The recipes which you can record and store remove the burden of remembering the exact keystroke sequence for your tasks. You simply select a pre-recorded recipe (builtin or your own) and run. When running a recipe, the app visually prompts you with the keystrokes to press and guides you along in getting the results. The app comes with 25 built-in recipes and allows you to add/record/edit/delete your own recipes. The convenient register view on the screen allows you to view register contents as your operations proceed.
Stock Proof
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Join our investing club. Pick great stocks with our easy to use app.
Screenshots
Verdict
The clearest difference is in-app purchases: Stock Proof at none against 10bII+'s 1. Stock Proof also leads on update cadence (every 10 days vs every 15 months). 10bII+'s advantage is ads (none vs shown). On price, 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
Both are free to download. 10bII+ sells 1 one-off in-app purchase. Stock Proof asks for nothing beyond the download.
10bII+ ships an update every 15 months, Stock Proof every 10 days. The most recent releases landed on September 8, 2026 and September 25, 2026 respectively.
| Parameter | 10bII+ | Stock Proof |
|---|---|---|
| Price | Free | Free |
| Rating | 1.9 (9 ratings) — better | — |
| Positive reviews | 10.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 15 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 15 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Anishu, Inc. | StockProof LLC |
In-app purchases
10bII+
- 10bII+: Full Functionality$5.99
Stock Proof
No in-app purchases
Questions
Is 10bII+ free?
Is Stock Proof free?
Do 10bII+ or Stock Proof have ads?
Which is updated more often, 10bII+ or Stock Proof?
Other comparisons
