# ISC vs Butterfly

The clearest difference is in-app purchases: ISC at none against Butterfly's 2. Butterfly's advantage is ads (none vs shown) and update cadence (daily vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Butterfly sells 2 in-app purchases, starting at $9.99 per month. ISC asks for nothing beyond the download.

ISC ships an update every 2 months, Butterfly daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ISC | Butterfly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (31 ratings)](https://appshunter.io/ios/app/isc-cx-mobile/id1544997674/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 36.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free | — |
| Size | 26 MB | 69 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Multisearch AG](https://appshunter.io/developer/1091248706) | [Weikang Wang](https://appshunter.io/developer/6802949688) |

## What reviewers say

### ISC

[App page](https://appshunter.io/ios/app/isc-cx-mobile/id1544997674)

Become a mystery shopper to evaluate brands and earn money in your spare time. Share your customer experience insights with leading brands to help them improve their service. Get paid for activities you already do, like shopping and making purchasing decisions.

**Highlights:** Sign up as an evaluator, Evaluate brands and customer experiences, Earn money for shopping, Provide feedback to brands, Share personal thoughts on service improvement

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

**In-app purchases:** none


### Butterfly

[App page](https://appshunter.io/ios/app/butterfly-closer/id6802949686)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Butterfly: Closer Premium Monthly | $9.99 | per month |
| Butterfly AI Premium Annual | $69.99 | per year |


## Frequently asked questions

### Is ISC free?

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

### Is Butterfly free?

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

### Do ISC or Butterfly have ads?

ISC shows ads; Butterfly does not.

### Which is updated more often, ISC or Butterfly?

ISC ships an update every 2 months, and Butterfly daily. Most recently, ISC was updated on November 3, 2026 and Butterfly on October 31, 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.*