Formula Calculator # vs Nummeric
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Formula Calculator #
Perform calculations with a vast library of built-in formulas or create your own. Save and sync custom formulas to the cloud for easy access across devices. Includes a comprehensive scientific calculator.
- Extensive built-in calculation formulas
- Create and save custom formulas
- Cloud synchronization for custom formulas
- Share custom formulas with others
- Comprehensive scientific calculator
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The formula calculator comes with a wide range of built-in calculation formulas, allowing you to complete calculations simply by entering the required parameters. It also features built-in custom formulas, catering to individual needs. Once a custom formula is set up, you only need to input the parameters during your next calculation to quickly obtain the results, thereby improving efficiency. Moreover, you can share your custom formulas with friends or other devices for convenient calculations. After logging in with your account, you can synchronize your custom formulas to the cloud to prevent any loss. Additionally, it includes a comprehensive scientific calculator that meets various calculation needs.
Nummeric
This app combines over 200 specialized calculators, a step-by-step math solver, graphing, unit conversion, and a private notebook. It offers a scientific and programmer mode, matrix calculations, and live currency conversion. Designed for privacy, it runs entirely on-device with no tracking or account required.
- 214 specialized calculators
- Step-by-step math solver
- Graphing and visualization
- Unit and currency converter
- Private math notebook
- Scientific, RPN, and programmer modes
- Matrix calculator
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Nummeric is a calculator that grows with what you're doing. Start with a clean four-function keypad. Slide out the scientific panel when you need it. Switch to RPN if that's how you think. Then there's everything else. 214 SPECIALTY CALCULATORS Mortgage, auto loan, refinance, APR, income tax, take-home pay, BMI, TDEE, one-rep max, percentage, quadratic formula, concrete, roofing, tile — and two hundred more. Search by name. Each one shows the formula it uses and cites its source. GRAPHING Plot up to 10 equations at once. Pan, zoom, and trace with your finger. Find roots, intersections, maxima and minima. Share a graph as an image, or as a link that reopens the exact plot on someone else's iPhone. STEP-BY-STEP SOLVER See the working, not just the answer. Quadratics solve three ways — the formula, factoring, and completing the square — and switching methods rebuilds every step. UNIT CONVERTER 19 categories, from length and weight to torque, density and fuel economy. Currency rates come from a free, ECB-derived source and are cached so they still work offline. NOTEBOOK Write math the way you'd write it on paper. "5 ft + 3 in in cm" works. So does "20% of 150", and a "subtotal = 42.50" you can refer to on the next line. MORE TOOLS Matrices, base conversion for programmers, tip and split, sales tax, VAT, statistics, and date and time math. ON EVERY DEVICE iPhone, iPad, Mac, Apple Watch and Apple Vision Pro. Home Screen and Lock Screen widgets, a custom keyboard that calculates without leaving the app you're in, and a calculator inside Messages. BUILT TO BE TRUSTED Nine deep audit passes went into this release, backed by more than 1,100 automated tests. Full VoiceOver support, Dynamic Type, and contrast-checked colors in all eight themes. NO SUBSCRIPTION One purchase. No subscriptions, no in-app purchases, no ads. Your calculations stay on your device unless you turn on iCloud sync.
Screenshots
Verdict
The clearest difference is in-app purchases: Nummeric at none against Formula Calculator #'s 4. Nummeric also leads on ads (none vs shown) and update cadence (every 3 days vs every 5 weeks). Formula Calculator #'s advantage is iOS requirement (12.0 vs 17.0). On price, rating, ratings volume 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
Both are free to download. Formula Calculator # sells 4 one-off in-app purchases. Nummeric asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Formula Calculator # against 5.0 for Nummeric. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
Formula Calculator # ships an update every 5 weeks, Nummeric every 3 days. The most recent releases landed on September 14, 2026 and September 7, 2026 respectively.
| Parameter | Formula Calculator # | Nummeric |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 67 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | 威 刘 | Honorius Neogy |
Customer experience
Formula Calculator #
Nummeric
In-app purchases
Formula Calculator #
- 1 month subscription$1.49
- 3 months subscription$2.49
- 6 months subscription$3.49
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- 1 year subscription$4.49
Nummeric
No in-app purchases





