Comparison

CalcFormula vs Numeri

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CalcFormula

Features
Read full description

CalcFormula is a formula calculator designed for study and work. It helps you save frequently used expressions, reuse them anytime, and reduce repetitive typing and recalculation. Create and manage your own formula entries, then input variable values to get results instantly. For complex expressions, CalcFormula provides clear formula display and editing so you can verify structure and avoid input mistakes. Whether you are reviewing for school, doing engineering conversions, making financial estimates, or handling daily repeated calculations, CalcFormula helps you build a reusable personal formula library. Key Features: Formula Management: Create, edit, and delete formulas in one place Variable Input: Enter parameter values and calculate in real time Formula Display: Readable rendered formula preview Common Formula Library: Built-in references for quick access Local Data: Your formulas are stored locally on your device

About

Numeri

Features
Read full description

Stop juggling numbers in your head or on scraps of paper. Traditional calculators force you to work one step at a time, erasing your context with every new entry. Numeri reimagines the calculator as a smart, interactive document, giving you a clear, editable view of your entire thought process. Numeri is a notepad that calculates. Write down your thoughts naturally, line by line, and get a live result for each step. Define a width, calculate an area, and then find the cost — all in one place. Change a single number at the top, and watch all your dependent results update instantly. It's not just about getting an answer; it's about understanding how you got there. FEATURES THAT MAKE SENSE * Live, Multiline Calculations: Every line is a new calculation with an instant result. See your entire workflow at a glance, from start to finish. * Variables: Assign names to your numbers (e.g., price = 19.99) and reuse them anywhere. Stop re-typing and start building formulas that are easy to read and modify. * Rich Function Library: Go beyond basic arithmetic with built-in functions like sqrt(), pow(), sin(), cos(), log(), and more, giving you the power to solve complex problems. * Instant Result Referencing: Use the special & variable to instantly grab the result from the previous line and continue your calculation chain seamlessly. * Comments for Clarity: Use the # symbol to add notes and context to your calculations. Your future self will thank you. * Clean and Focused Interface: A clutter-free design with a custom keyboard keeps you focused on your work. Change font size and decimal precision from the Settings tab. PERFECT FOR * Students: Lay out homework problems step-by-step for complete clarity and easier review. * Engineers & Scientists: Perform quick, back-of-the-envelope calculations without losing context. * Developers: A perfect scratchpad for testing out algorithms, logic, or financial models. * Anyone: From planning a budget to calculating project materials, Numeri makes multi-step math simple and transparent. Stop just getting answers. Start understanding them. Download Numeri today and experience math that finally makes sense. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://akh.im/numeri/privacy

Screenshots

CalcFormula4 screens
Numeri4 screens

Verdict

The call

The clearest difference is iOS requirement: Numeri at 16.6 against CalcFormula's 26.0. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CalcFormula sells 1 one-off in-app purchase and Numeri sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
CalcFormula versus Numeri: the parameters behind the verdict, then further details
ParameterCalcFormulaNumeri
PriceFreeFree
Update frequency—Every 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.6 — better
Further details — not scored
Size16 MB4 MB
Age rating4+4+
Developer仲达 夏Alexey Kruhlik

In-app purchases

1 purchases

CalcFormula

One-time1
  • CalcFormula PRO$0.99
2 purchases

Numeri

Subscriptions2
  • Monthly$3.991 Month
  • Yearly7 Days trial$39.991 Year

Questions

Is CalcFormula free?
CalcFormula is free to download, with in-app purchases available.
Is Numeri free?
Numeri is free to download, with in-app purchases available.
Do CalcFormula or Numeri have ads?
Neither CalcFormula nor Numeri shows ads.

Other comparisons