# SHIFT Deploy vs Scientific Calculator fx

The clearest difference is in-app purchases: SHIFT Deploy at none against Scientific Calculator fx's 5. SHIFT Deploy also leads on ads (none vs shown) and rating (5.0 vs 4.6). Scientific Calculator fx's advantage is update cadence (every 2 weeks vs every 2 months) and ratings volume (415 vs 2). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Scientific Calculator fx sells 5 in-app purchases, starting at $1.99 per month. SHIFT Deploy asks for nothing beyond the download.

SHIFT Deploy holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Scientific Calculator fx has 415 ratings behind it against 2, so its average is the more settled of the two.

SHIFT Deploy ships an update every 2 months, Scientific Calculator fx every 2 weeks. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | SHIFT Deploy | Scientific Calculator fx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/shift-deploy/id1012034591/reviews)** | [4.6 (415 ratings)](https://appshunter.io/ios/app/scientific-calculator-fx-991/id1673640297/reviews) |
| Number of ratings | 2 | **415** |
| Positive reviews | — | 82.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aura Interactiva S.A.](https://appshunter.io/developer/980292895) | [Dinh Phuc](https://appshunter.io/developer/1673640299) |

## What reviewers say

### SHIFT Deploy

[App page](https://appshunter.io/ios/app/shift-deploy/id1012034591)

Access your entire content library from any location, even without an internet connection. Sync your progress and information back to the analytics platform once you're back online.

**Highlights:** Offline content access, Content library synchronization, Progress information syncing, Advanced analytics integration, Cross-device compatibility

**In-app purchases:** none


### Scientific Calculator fx

[App page](https://appshunter.io/ios/app/scientific-calculator-fx-991/id1673640297)

This app provides a powerful scientific calculator with step-by-step solutions for equations, advanced functions, and graphing capabilities. It includes a formula library and unit converter, inspired by a popular Casio model, to aid in learning and problem-solving for math and science subjects.

**Highlights:** Step-by-step equation solver, Advanced scientific functions, Graphing mode, Formula library, Unit converter, Casio fx-991 inspired interface

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $1.99 | per month |
| 6-Month Premium Membership | $2.49 | per 6 months |
| Yearly Premium Access | $7.99 | per year |
| Remove Ads 30 Days | $0.99 | one-time |
| HiEdu Pro Lifetime | $14.99 | one-time |

**What reviewers like**

- 👍 Very helpful for classes
- 💰 Free to use
- 👍 Useful without physical calculator
- 👍 Good for engineering students
- 👍 Handles imaginary numbers

**What reviewers complain about**

- 🐛 Latest update inconvenient
- 🐛 Update overrides calculations
- 🐛 Mistake in challenge section
- 🐛 Removed important buttons
- 🐛 Cannot find pi button

**Reported bugs**

- App crashes on loading screen
- App closes immediately on opening
- App crashes on iOS 18
- App closes after update
- Cannot upgrade to paid version

**Requested features**

- Fix update issue with calculation display
- Fix duplicate log key in Fx-350 layout
- Add CW layout for Casio fx991 cw
- Change ☐² to X² and ☐⁻¹ to X⁻¹


## Frequently asked questions

### Is SHIFT Deploy free?

SHIFT Deploy is free to download, with no in-app purchases.

### Is Scientific Calculator fx free?

Scientific Calculator fx is free to download, with in-app purchases available.

### Which has better reviews, SHIFT Deploy or Scientific Calculator fx?

SHIFT Deploy is rated higher. SHIFT Deploy averages 5.0 out of 5 from 2 ratings, while Scientific Calculator fx averages 4.6 from 415 ratings.

### Do SHIFT Deploy or Scientific Calculator fx have ads?

Scientific Calculator fx shows ads; SHIFT Deploy does not.

### Which is updated more often, SHIFT Deploy or Scientific Calculator fx?

SHIFT Deploy ships an update every 2 months, and Scientific Calculator fx every 2 weeks. Most recently, SHIFT Deploy was updated on October 5, 2026 and Scientific Calculator fx on October 14, 2026.

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