# Instant Anatomy Flash Cards vs CupCalc

The clearest difference is price: CupCalc at Free against Instant Anatomy Flash Cards's $4.99. CupCalc also leads on update cadence (fortnightly vs every 2 months). Instant Anatomy Flash Cards's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.1). On rating, ratings volume, ads and device support there is nothing between them.

CupCalc is free to download; Instant Anatomy Flash Cards costs $4.99 up front. CupCalc sells 2 in-app purchases, starting at $12.99 per year. Instant Anatomy Flash Cards asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Instant Anatomy Flash Cards against 5.0 for CupCalc. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Instant Anatomy Flash Cards ships an update every 2 months, CupCalc fortnightly. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Instant Anatomy Flash Cards | CupCalc |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/instant-anatomy-flash-cards/id397685975/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cupcalc/id6761444976/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 79.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 244 MB | 42 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Whitaker](https://appshunter.io/developer/373474191) | [Zekko LLC](https://appshunter.io/developer/1889700014) |

## What reviewers say

### Instant Anatomy Flash Cards

[App page](https://appshunter.io/ios/app/instant-anatomy-flash-cards/id397685975)

This app offers 560 detailed anatomical diagrams and flashcards for learning and revision. It covers various body parts and systems, with zoomable images and a search function. Content is presented by an experienced medical educator.

**Highlights:** 560 anatomical diagrams, Zoomable images, Search function, Covers head, neck, thorax, abdomen, arm, leg, Organized by body systems, Presented by medical expert

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

**In-app purchases:** none


### CupCalc

[App page](https://appshunter.io/ios/app/cupcalc/id6761444976)

This medical reference calculator assists orthopaedic surgeons and trainees in total hip arthroplasty by applying published mathematical formulas to compute acetabular cup targets. It provides detailed calculations based on pelvic incidence, sacral slope, and femoral mobility, with all data traceable to peer-reviewed literature.

**Highlights:** Acetabular cup target computation, Pelvic incidence and sacral slope analysis, Femoral mobility classification, Functional anteversion and inclination targets, Safe zone plot with CSI thresholds, Exportable PDF planning summary

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CupCalc Express | $12.99 | per year |
| CupCalc Pro | $19.99 | per year |


## Frequently asked questions

### Is Instant Anatomy Flash Cards free?

Instant Anatomy Flash Cards costs $4.99, with no in-app purchases.

### Is CupCalc free?

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

### Which has better reviews, Instant Anatomy Flash Cards or CupCalc?

Instant Anatomy Flash Cards and CupCalc are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Instant Anatomy Flash Cards or CupCalc have ads?

Neither Instant Anatomy Flash Cards nor CupCalc shows ads.

### Which is updated more often, Instant Anatomy Flash Cards or CupCalc?

Instant Anatomy Flash Cards ships an update every 2 months, and CupCalc fortnightly. Most recently, Instant Anatomy Flash Cards was updated on November 1, 2026 and CupCalc on October 28, 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.*