Four Formula Calculator vs Formula Calculator #
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Four Formula Calculator
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A free calculator app that allows you to calculate while looking at 4 formulas at the same time. Root calculation is also possible with root(number) such as root(2).
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Four Formula Calculator at none against Formula Calculator #'s 4. On price, update cadence, 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
Both are free to download. Formula Calculator # sells 4 one-off in-app purchases. Four Formula Calculator asks for nothing beyond the download.
Four Formula Calculator ships an update every 2 months, Formula Calculator # every 5 weeks. The most recent releases landed on October 26, 2026 and November 4, 2026 respectively.
| Parameter | Four Formula Calculator | Formula Calculator # |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 4 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | SHIGETO TAKAGI | 威 刘 |
In-app purchases
Four Formula Calculator
No 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
Questions
Is Four Formula Calculator free?
Is Formula Calculator # free?
Do Four Formula Calculator or Formula Calculator # have ads?
Which is updated more often, Four Formula Calculator or Formula Calculator #?
Other comparisons
