# DayCalc vs FP Scientific&Basic Calculator

The clearest difference is in-app purchases: FP Scientific&Basic Calculator at none against DayCalc's 4. FP Scientific&Basic Calculator also leads on ads (none vs shown) and ratings volume (657 vs 126). DayCalc's advantage is review sentiment (87% vs 69%). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. DayCalc sells 4 one-off in-app purchases. FP Scientific&Basic Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for DayCalc against 4.6 for FP Scientific&Basic Calculator. That said, the two scores are not equally well evidenced: FP Scientific&Basic Calculator has 657 ratings behind it against 126, so its average is the more settled of the two. Written reviews are what separate them: 87% of DayCalc's written reviews are positive against 69% of FP Scientific&Basic Calculator's.

DayCalc ships an update every 3 weeks, FP Scientific&Basic Calculator every 2 weeks. Both last shipped on October 17, 2026.

## The numbers

| Metric | DayCalc | FP Scientific&Basic Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (126 ratings)](https://appshunter.io/ios/app/daycalc-note-calculator/id661506264/reviews)** | [4.6 (657 ratings)](https://appshunter.io/ios/app/fp-scientific-and-basic-calculator/id1556021625/reviews) |
| Number of ratings | 126 | **657** |
| Positive reviews | **87.2% of reviews** | 68.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 170 MB | 92 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Ofly Tech Co., Ltd.](https://appshunter.io/developer/1556021627) |

## What reviewers say

### DayCalc

[App page](https://appshunter.io/ios/app/daycalc-note-calculator/id661506264)

This app combines a powerful calculator with a comprehensive unit converter. It offers standard, scientific, and fraction calculations, along with over 600 units across 20 categories. Users can customize units, add notes to calculations, and enjoy a visually appealing interface with multiple themes.

**Highlights:** Standard, scientific, and fraction calculator, Live voice calculator, Add notes to calculations, Over 600 units in 20 categories, Custom unit creation, Automatic currency exchange rate updates, 50+ themes and dark mode support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Constants Pack | $0.99 | one-time |
| Custom Unit Pack | $1.99 | one-time |
| Remove Ads | $3.99 | one-time |
| Complete Pack | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use and convenient
- 💯 All-in-one calculator with multiple functions
- ✨ Customizable themes and backgrounds
- 🧮 Supports fraction calculations
- 📈 History and memory functions available

**What reviewers complain about**

- ⚠️ Ads can be intrusive
- 🐛 Some users experience update issues
- ❌ Weight conversions not always available
- 🔊 Unwanted sound effects
- ❓ Ad-free cost unclear for cross-platform

**Reported bugs**

- Update issues, stuck in update loop
- Cannot install after removal
- Weight conversion not showing
- Keys making sound unexpectedly
- App not working after professional version update

**Requested features**

- Add Pi button
- Improve currency conversion navigation
- iCloud support for syncing across devices
- Add background running feature
- Ability to change app icon


### FP Scientific&Basic Calculator

[App page](https://appshunter.io/ios/app/fp-scientific-and-basic-calculator/id1556021625)

This app offers a versatile calculator with basic arithmetic, currency, and unit conversion capabilities. It features customizable interfaces, including dark mode, and supports split-screen functionality on iPads. Users can also track calculation history and split bills.

**Highlights:** Basic and arithmetic calculations, Currency conversion (160 currencies), Unit conversion (10 units), Dark and light mode, Split-screen computing, Calculation history, Bill splitting

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent app
- 👍 Great calculator
- 👍 User-friendly interface
- 👍 Comprehensive features
- 👍 Convenient currency converter

**What reviewers complain about**

- 🐛 Frozen currency exchange rates
- 🔍 Excessive ads and pop-ups
- ⏱️ Slow app startup
- 🔒 Lack of ad-free purchase option

**Reported bugs**

- Currency converter not working
- Crashes and freezes
- Incompatibility with older devices

**Requested features**

- Add tax calculation feature
- Implement widget support
- Provide more Christmas themes
- Fix currency converter issues


## Frequently asked questions

### Is DayCalc free?

DayCalc is free to download, with in-app purchases available.

### Is FP Scientific&Basic Calculator free?

FP Scientific&Basic Calculator is free to download, with no in-app purchases.

### Which has better reviews, DayCalc or FP Scientific&Basic Calculator?

DayCalc is rated higher. DayCalc averages 4.7 out of 5 from 126 ratings, while FP Scientific&Basic Calculator averages 4.6 from 657 ratings.

### Do DayCalc or FP Scientific&Basic Calculator have ads?

DayCalc shows ads; FP Scientific&Basic Calculator does not.

### Which is updated more often, DayCalc or FP Scientific&Basic Calculator?

DayCalc ships an update every 3 weeks, and FP Scientific&Basic Calculator every 2 weeks. Most recently, DayCalc was updated on October 17, 2026 and FP Scientific&Basic Calculator on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*