Combinations & Probabilities vs HexBit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Combinations & Probabilities
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Combinations & Probabilities puts the full power of discrete mathematics in your pocket — instantly. Whether you're a student, educator, analyst or simply curious about the real odds of anything, this is your precision toolkit. Beautifully designed for iOS 26 with Liquid Glass, supporting dark and light modes. CALCULATORS Combinations and permutations — with or without repetition — plus factorial, all powered by a prime-factorized fraction engine for exact, simplified results. Live calculation updates in real-time as you move the sliders. No loading, no waiting. Just math. PROBABILITY ENGINE Type favorable and total outcomes directly, or pipe your combination result into the probability calculator with a single tap. P(A) = m/n, calculated instantly. SCENARIOS Jump into pre-configured probability models — no setup required: · Lottery Models — real draws from the Americas and Europe. See how odds shift when you play 7 numbers instead of 6. · Dice — single or multiple dice, any target outcome. · Coins — exact odds for any head/tail sequence. HISTORY Tap copy on any result to save it to your history and clipboard simultaneously. Recall, reuse or delete individual entries. Up to 200 saved calculations in Pro — enough for the most demanding sessions. SMART INPUT Sliders for broad sweeps. Step controls — and + for precision. Input validation prevents mathematically impossible states — you simply can't break it. —— C&P Pro is a one-time purchase that removes ads and unlocks all current and future features forever. No subscription. No recurring charges. Pay once, yours forever. All purchases are processed by Apple and subject to Apple's Terms of Sale: https://www.apple.com/legal/internet-services/itunes/ —— Available in English, Portuguese, Spanish, French, Italian and German.
HexBit
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HexBit is the focused calculator for engineers, developers, and students who want powerful math without ads, subscriptions, accounts, or tracking. SCIENTIFIC CALCULATOR • Natural expression input with live results • Trigonometry, inverse trig, hyperbolic functions, logarithms, exponents, roots, factorials, fractions, π, and e • Complex-number calculations with i • RPN mode with a four-level stack, ENTER, DROP, SWAP, and roll controls PROGRAMMER CALCULATOR • Synchronized HEX, DEC, OCT, and BIN values • 8-, 16-, 32-, and 64-bit signed or unsigned modes • AND, OR, XOR, NOT, shifts, and bit rotations • ASCII, Unicode, RGB, and IEEE 754 tools UNIT CONVERTER • 200+ units across 15 categories • Length, mass, volume, temperature, pressure, energy, power, data, and more • Works offline, including built-in currency rates MADE FOR DAILY USE • Searchable calculation history with one-tap reuse and copy • Five calculator themes and configurable display, sound, and haptic settings • Home Screen and Lock Screen widgets • Designed for iPhone and iPad Everything is included in one purchase. Your calculations and preferences stay on your device. Terms of Use: https://taxlite.net/simple_calc/terms.html Privacy Policy: https://taxlite.net/simple_calc/privacy.html
Screenshots
Verdict
The clearest difference is price: Combinations & Probabilities at Free against HexBit's $3.99. Combinations & Probabilities also leads on update cadence (weekly vs monthly). HexBit's advantage is ads (none vs shown) and iOS requirement (17.0 vs 26.0). On 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
Combinations & Probabilities is free to download; HexBit costs $3.99 up front. Combinations & Probabilities sells 1 one-off in-app purchase and HexBit sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Combinations & Probabilities ships an update weekly, HexBit monthly. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.
| Parameter | Combinations & Probabilities | HexBit |
|---|---|---|
| Price | Free — better | $3.99 |
| Update frequency | Weekly — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 2 MB |
| Age rating | +4 | 4+ |
| Developer | Joao Carrion | ZHENGQIAO JIANG |
In-app purchases
Combinations & Probabilities
- C&P Pro$2.99
HexBit
- Weekly$1.997 Days
- Monthly$4.991 Month
- Yearly$29.991 Year
- Lifetime$79.99
Questions
Is Combinations & Probabilities free?
Is HexBit free?
Do Combinations & Probabilities or HexBit have ads?
Which is updated more often, Combinations & Probabilities or HexBit?
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