# Prism vs ePlan

Prism and ePlan are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Prism sells 2 in-app purchases, starting at $2.99 per month and ePlan sells 1 in-app purchase, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Prism | ePlan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 6 MB | 6 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Maria Camila Storck](https://appshunter.io/developer/6777137719) | [David Bodiu](https://appshunter.io/developer/6792022685) |

## What reviewers say

### Prism

[App page](https://appshunter.io/ios/app/prism-color-studio/id6777137717)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prism Pro | $2.99 | per month |
| Prism Pro | $17.99 | per year |


### ePlan

[App page](https://appshunter.io/ios/app/eplan-electrical-floor-plans/id6796105291)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $7.99 | per month |


## Frequently asked questions

### Is Prism free?

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

### Is ePlan free?

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

### Do Prism or ePlan have ads?

Neither Prism nor ePlan shows ads.

### Which is updated more often, Prism or ePlan?

Prism ships an update weekly, and ePlan weekly. Most recently, Prism was updated on October 5, 2026 and ePlan on October 12, 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.*