e vs MultiiCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
e
This scientific calculator supports engineering notation with prefixes like pico, nano, and mega. It offers a history feature to review past calculations and allows editing of formulas for recalculation. The free version has some limitations on history scrolling and saving.
- Scientific notation support
- Engineering multipliers (p, n, u, m, k, M)
- History of past calculations
- Editable formulas for recalculation
- Unit conversion for engineering prefixes
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This calculator can be used not only in scientific notation(e.g. 1E-6) but also using engineering multipliers(e.g. p,n,u,m,k,M). By pressing the [ENG] button, the display of calculation result will change. (e.g. 1E-9 or 1n) Calculation results in the past is displayed in the history area. When you tap the formula area , you will be able to edit it. You will be able to re-calculate. Unit that can be entered from the button is p = 1E-12, n = 1E-9, u = 1E-6, m = 1E-3, k = 1E3, M = 1E6. (f = 1E-15 and G = 1E9 is used for display only）. iPhone4 can display four lines in history area. iPhone5 can display 9 lines. The main limitations of Free version is as follows. you can not scroll history area. History is not saved when you exit.
MultiiCalc
Save and reuse your important calculations. This tool lets you store named values to easily perform complex financial or cost analyses without losing track of intermediate steps. Share your results with others or export them to different applications.
- Save notable calculations by name
- Calculate against saved list items
- Track complex financial analyses
- Share calculations with friends
- Export calculations to other apps
- No analytics or tracking
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MultiiCalc allows you to keep your notable calculations saved to a list by name so that you can calculate other values against those list items later. Imagine you want to calculate the potential profit of a real estate investment, or the cost of a new home, perhaps the cost of a vacation. There are so many different fees and percentages that will need to be calculated that a simple calculator app will not be able to handle in one go. With MultiiCalc, you can save your values along the way and come back later - or just save and keep calculating so you don't lose track. You can even share your calculations with your friends or other apps! All of your data is YOUR data. I don't have any analytics or tracking in here, enjoy!
Screenshots
Verdict
The clearest difference is rating: MultiiCalc at 5.0 against e's 3.0. MultiiCalc also leads on update cadence (monthly vs every 5 months) and ratings volume (9 vs 1). e's advantage is in-app purchases (none vs 3) and iOS requirement (6.1 vs 14.0). On price, review sentiment, 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. MultiiCalc sells 3 one-off in-app purchases. e asks for nothing beyond the download.
MultiiCalc holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: MultiiCalc has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 56% of e's written reviews are positive against 50% of MultiiCalc's, so the app with the better star average is not the one people write more warmly about.
e ships an update every 5 months, MultiiCalc monthly. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.
| Parameter | e | MultiiCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 55.6% of reviews — better | 50.0% of reviews |
| Number of ratings | 1 | 9 — better |
| Update frequency | Every 5 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 6.1 — better | 14.0 |
| Further details — not scored | ||
| Size | 7 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | e-skett Corp. | Christina Schell |
Customer experience
e
MultiiCalc
In-app purchases
e
No in-app purchases
MultiiCalc
- A Generous Tip$1.99
- A Hefty Tip$3.99
- A Lavish Tip$6.99
