▸ Calculator + vs Document Wallet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
▸ Calculator +
This app offers a comprehensive suite of 12 calculators, including scientific, currency, unit, and finance functions. It features advanced modes, extensive formula support, and a user-friendly interface for all calculation needs.
- 12 specialized calculators
- Over 800 formulas
- Scientific, RPN, and String modes
- Unit and currency conversion
- Finance and date/time calculations
- Equation solver and graphing
- History and expression export
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+ 800+ formulas in Formula Toolkit In-App + OVER 1 MILLION DOWNLOADS WORLDWIDE + Award Winning Calculator Since 2007 HiCalc Pro is an ultimate calculator and will make all your calculations become simpler than ever with 12 calculators: Basic, Scientific, Currency Converter, Unit Converter, Finance, Date - Time, Constants, Equation Solver, Statistics, Base conversion, Graph & Tip calculator. ► Noteworthy • Three calculating modes: STANDARD, STRING and RPN • Precision to 31 digits • BIG CALC in Portrait mode. • Comprehensive Date & Time calculator • Unit Converter contains 3,300 units in 113 categories • Currency converter with daily online update for 152 currencies • Extended Memory and Expression History supports • Intuitive interface • Export & send out expressions/history ► Features: • Multi-line LED with smart input for entering complicated expressions • Show expression as normal writing mode @ very useful for students • Advanced RPN mode with Stack viewer and functions: DROP, SWAP, ROLL, DEPTH, PICK, OVER, KEEP, LAST, CLEAR • Sending data from Ext-Memory & History list • Support 5 languages (English, French, German, Chinese & Vietnamese) ► Scientific calculator: • Basic fx: sin, cos, tan, sin-1, cos-1, tan-1, sinh, cosh, tanh, log, ln, sinh-1, cosh-1, tanh-1 … • Advanced fx: Random, nPr, nCr, Differential function, Evaluation function, Integration function, Root-Finder and Product function, Greatest Common Divisor, Least Common Multiple, Fibonacci function … • Complex numbers in STRING mode ► Unit Converter: a powerful and easy-to-use tool for converting over 3,300 units in 113 categories. • Special categories: Women and Girl's Clothing, Cooking, Electric Field, Density Traditional, Typography, UHF channel and frequency chart, Fuel Consumption … • Full text search for categories and units • Favorite & Recently used units • Update over the air ► Statistics calculator • 15 common functions: Σ(x), mean of X, AVD, SSD, SDV, C(n, k), Min, Max, GM... • 6 probability distribution functions: Binomial, Gamma, Gaussian, Geometric, Poisson, Rayleigh • Smart data input: data import from clipboard supported ► Graphing Calculator • Up to three graphs • Coordinate system movable • Zoom in/out ► Equation solver • Polynomial Equations (1st-4th) • N-simultaneous equations ► Base conversion • Full-featured base conversion ► Date & Time calculator • Date / Time difference: calculate duration between two dates. • Add/ Subtract: Add or subtract days, months and years of a given date to get a new date. • Events Countdown/up: Shows Time Remaining and Elapsed Time ► World Clock • Show date & time of any city in the World • Have 6 cool skins ► Finance calculator • Time Value of Money (NPER, RATE, PV, FV, PMT) • Mortgage & Loan Calculator • Finance functions: SLN, SYD, DB, NPV, IRR, NPER, RATE, PV, FV, PMT. ► Constants Library: • 1500 constants from Mathematics, Physics, Solar System and Element e.g: Avogadro number, Gravitational const, Stefan-Boltzmann Const, Speed of Light.
Document Wallet
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Smart OCR reader and classification. PDF converter for multi-pages document. Travel journey management features. Family management features. Profile-based organization features. Reminder for creating, gathering or renewal document.
Screenshots
Verdict
The clearest difference is price: Document Wallet at Free against ▸ Calculator +'s $1.99. Document Wallet also leads on in-app purchases (none vs 4) and update cadence (every 10 days vs every 6 weeks). ▸ Calculator +'s advantage is iOS requirement (8.0 vs 15.5). On ads 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
Document Wallet is free to download; ▸ Calculator + costs $1.99 up front. ▸ Calculator + sells 4 one-off in-app purchases. Document Wallet asks for nothing beyond the download.
▸ Calculator + ships an update every 6 weeks, Document Wallet every 10 days. The most recent releases landed on October 13, 2026 and September 30, 2026 respectively.
| Parameter | ▸ Calculator + | Document Wallet |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.7 (904 ratings) — better | — |
| Positive reviews | 75.1% of reviews | — |
| Number of ratings | 904 — better | — |
| Update frequency | Every 6 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 44 MB | 106 MB |
| Age rating | 4+ | 4+ |
| Developer | PPCLINK Software | Hoai Linh Nguyen |
Bugs and requests
▸ Calculator +
Reported bugs
5 issues- Date/Time screen cutoff at bottom and missing keyboard icon
- Currency exchange not working
- Periodic Taple option of HiCalcac pro is not compatible eith iOs 10
- Crashes in iOS 10
- Gig to meg conversion is incorrect
Requested features
5 requests- Dark mode option
- Advanced analytics dashboard
- Landscape mode support
- Equation solver for non-polynomials
- Auto-display of graph coordinates
Document Wallet
Not enough reviews yet to summarise bugs or requests.
In-app purchases
▸ Calculator +
- Formula Toolkit$0.99
- Periodic Table$0.99
- UI Upgrade$0.99
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- Biorhythm$0.99
Document Wallet
No in-app purchases
Questions
Is ▸ Calculator + free?
Is Document Wallet free?
Do ▸ Calculator + or Document Wallet have ads?
Which is updated more often, ▸ Calculator + or Document Wallet?
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