Custom Formulas vs Formulize
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Custom Formulas
This utility app allows users to create and manage complex calculations with multiple inputs and outputs. Formulas can be linked, grouped into categories, and customized for display precision. Share your custom calculations easily via email.
- Multiple input/output formula support
- Linked formulas via variable names
- Formula categorization
- Customizable variable display order
- Adjustable output decimal precision
- Email formula sharing
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This app is easy to use, but unlike simpler apps, multiple entered values can be fed into multiple formulas and multiple output values can be displayed. The output of one formula in a group can be fed into the next by using the same variable name. Related formulas can be grouped into categories to make them easy to find. e.g. Maths formulas, Surveying formulas, Loan interest formulas etc. The order of variables displayed to the user can be changed, as can the number of decimal digits of precision shown in the output fields. You can easily share formulas with other users of the app by emailing them. Three example formulas are pre-installed with the app. In order of increasing complexity they are: slope percentage, compound interest, and point scale factor.
Formulize
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Formulize is a user-friendly calculator app designed to help you create and manage custom formulas with ease. Whether you’re a student, professional, or just need a reliable tool for your everyday calculations, Formulize makes complex math simple. Key Features: • Custom Formulas: Easily design and save your own formulas for quick access. • Basic Calculations: Handle fundamental arithmetic operations with support for addition, subtraction, multiplication, and division. • Intuitive Interface: Enjoy a clean, easy-to-use interface that simplifies the process of creating and managing your formulas. • Variable Support: Input variables to make your calculations dynamic and flexible. • Operator Precedence: Ensure accurate results with built-in support for operator precedence.
Screenshots
Verdict
The clearest difference is price: Formulize at Free against Custom Formulas's $3.99. Custom Formulas's advantage is in-app purchases (none vs 1) and chart position (#186 vs unranked).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Formulize is free to download; Custom Formulas costs $3.99 up front. Formulize sells 1 one-off in-app purchase. Custom Formulas asks for nothing beyond the download.
| Parameter | Custom Formulas | Formulize |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | — |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Best chart rank | #186 — better | — |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 15.4 — better | 17.5 |
| Further details — not scored | ||
| Size | 1 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Anthony Dunk | Morten Gregersen |
In-app purchases
Custom Formulas
No in-app purchases
Formulize
- Formulize Pro$2.99









