# Decay calc vs Figure Case

The clearest difference is review sentiment: Figure Case at 95% against Decay calc's 50%. Figure Case also leads on rating (4.9 vs 1.0) and in-app purchases (none vs 1). Decay calc's advantage is price (Free vs $4.99) and iOS requirement (15.2 vs 17.0). On ads and device support there is nothing between them.

Decay calc is free to download; Figure Case costs $4.99 up front. Decay calc sells 1 one-off in-app purchase. Figure Case asks for nothing beyond the download.

Figure Case holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Figure Case has 546 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Decay calc's written reviews are positive against 95% of Figure Case's.

Decay calc ships an update every 3 months, Figure Case every 5 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Decay calc | Figure Case |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/decay-calc/id1479526735/reviews) | **[4.9 (546 ratings)](https://appshunter.io/ios/app/figure-case-miniature-tracker/id1487460834/reviews)** |
| Number of ratings | 1 | **546** |
| Positive reviews | 50.0% of reviews | **95.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 27 MB | 5 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Alexey Baranov](https://appshunter.io/developer/1479526734) | [Simon Nickel](https://appshunter.io/developer/880946249) |

## What reviewers say

### Decay calc

[App page](https://appshunter.io/ios/app/decay-calc/id1479526735)

This tool calculates the decay of radioactive isotopes over time, considering half-life for accurate activity predictions. It's useful in nuclear medicine, environmental monitoring, and radiation safety for handling and disposal of materials.

**Highlights:** Radioactive isotope decay calculation, Half-life integration, Activity prediction, Decay constant determination, Radiation dose calculation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Radio calc | $0.99 | one-time |


### Figure Case

[App page](https://appshunter.io/ios/app/figure-case-miniature-tracker/id1487460834)

Organize your tabletop miniature collection and track your painting progress. Log all your miniatures, group them into collections, and monitor their assembly and painting stages. Get a clear overview of your hobby status to plan your next projects.

**Highlights:** Log all miniatures, Organize into collections and groups, Track assembly and painting progress, View collection status overview, Sync data via iCloud, Add notes to collections/models, Customizable workflow stages

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

**In-app purchases:** none


## Frequently asked questions

### Is Decay calc free?

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

### Is Figure Case free?

Figure Case costs $4.99, with no in-app purchases.

### Which has better reviews, Decay calc or Figure Case?

Figure Case is rated higher. Decay calc averages 1.0 out of 5 from 1 ratings, while Figure Case averages 4.9 from 546 ratings.

### Do Decay calc or Figure Case have ads?

Neither Decay calc nor Figure Case shows ads.

### Which is updated more often, Decay calc or Figure Case?

Decay calc ships an update every 3 months, and Figure Case every 5 weeks. Most recently, Decay calc was updated on November 3, 2026 and Figure Case on November 7, 2026.

---

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