# Flashcards by SwiftStudy vs Calculate 84 AI

The clearest difference is update cadence: Flashcards by SwiftStudy at every 2 days against Calculate 84 AI's fortnightly. Calculate 84 AI's advantage is review sentiment (100% vs 85%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Flashcards by SwiftStudy sells 3 one-off in-app purchases and Calculate 84 AI sells 7 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Flashcards by SwiftStudy against 4.6 for Calculate 84 AI. Both are backed by a comparable volume of ratings — 33 and 41 respectively. Written reviews are what separate them: 85% of Flashcards by SwiftStudy's written reviews are positive against 100% of Calculate 84 AI's.

Flashcards by SwiftStudy ships an update every 2 days, Calculate 84 AI fortnightly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Flashcards by SwiftStudy | Calculate 84 AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (33 ratings)](https://appshunter.io/ios/app/flashcards-by-swiftstudy/id6502048405/reviews) | **[4.6 (41 ratings)](https://appshunter.io/ios/app/calculate-84-ai/id6670720231/reviews)** |
| Number of ratings | 33 | **41** |
| Positive reviews | 84.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 16 MB | 65 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KD incubator UG](https://appshunter.io/developer/1744327425) | [Fredinax Graphing Calculator](https://appshunter.io/developer/1767217696) |

## What reviewers say

### Flashcards by SwiftStudy

[App page](https://appshunter.io/ios/app/flashcards-by-swiftstudy/id6502048405)

Create and study double-sided flashcards with text and visuals. Organize them into custom stacks and track your progress through four mastery levels. Study from anywhere on any device and build a consistent learning streak.

**Highlights:** Double-sided flashcards with text and visuals, Organize cards into topic-based stacks, Customizable stack designs, Four mastery levels: New, In practice, Familiar, Mastered, Cross-device study access, Learning streak tracking

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flashcards - Coffee tip | $3.99 | one-time |
| Drink Tip | $9.99 | one-time |
| Lunch Tip | $19.99 | one-time |


### Calculate 84 AI

[App page](https://appshunter.io/ios/app/calculate-84-ai/id6670720231)

This AI-powered graphing calculator offers step-by-step guidance for complex math problems, from pre-algebra to calculus. It features interactive graphing, matrix operations, and statistical tools, making learning math intuitive and efficient.

**Highlights:** AI-guided step-by-step solutions, Comprehensive math coverage (Pre-Algebra to Calculus), Interactive and dynamic graphing, Matrix and statistical calculations, Scrollable calculation history, Fraction and angle conversion support

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculate AI PRO - Monthly | $1.99 | per month |
| Calculate AI PRO - Monthly | $1.99 | per month |
| Calculate AI PRO - Monthly | $3.99 | per month |
| Calculate AI PRO - Yearly | $5.99 | per year |
| Calculate AI PRO - Yearly | $12.99 | per year |
| Calculate AI PRO - Yearly | $17.99 | per year |
| Calculate AI PRO - Yearly | $24.99 | per year |


## Frequently asked questions

### Is Flashcards by SwiftStudy free?

Flashcards by SwiftStudy is free to download, with in-app purchases available.

### Is Calculate 84 AI free?

Calculate 84 AI is free to download, with in-app purchases available.

### Which has better reviews, Flashcards by SwiftStudy or Calculate 84 AI?

Calculate 84 AI is rated higher. Flashcards by SwiftStudy averages 4.6 out of 5 from 33 ratings, while Calculate 84 AI averages 4.6 from 41 ratings.

### Do Flashcards by SwiftStudy or Calculate 84 AI have ads?

Neither Flashcards by SwiftStudy nor Calculate 84 AI shows ads.

### Which is updated more often, Flashcards by SwiftStudy or Calculate 84 AI?

Flashcards by SwiftStudy ships an update every 2 days, and Calculate 84 AI fortnightly. Most recently, Flashcards by SwiftStudy was updated on October 24, 2026 and Calculate 84 AI on October 27, 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.*