# Butterfly Subscription Tracker vs ProofCase

The clearest difference is update cadence: ProofCase at daily against Butterfly Subscription Tracker's monthly. ProofCase also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Butterfly Subscription Tracker ships an update monthly, ProofCase daily. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Butterfly Subscription Tracker | ProofCase |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Size | 3 MB | 4 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Salinas Marquez](https://appshunter.io/developer/1459387057) | [Serhii Tykhonenko](https://appshunter.io/developer/1895816215) |

## What reviewers say

### Butterfly Subscription Tracker

[App page](https://appshunter.io/ios/app/butterfly-subscription-tracker/id6761439670)

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

**In-app purchases:** none


### ProofCase

[App page](https://appshunter.io/ios/app/proofcase-receipt-tracker/id6768375130)

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

**In-app purchases:** none


## Frequently asked questions

### Is Butterfly Subscription Tracker free?

Butterfly Subscription Tracker is free to download, with no in-app purchases.

### Is ProofCase free?

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

### Do Butterfly Subscription Tracker or ProofCase have ads?

Neither Butterfly Subscription Tracker nor ProofCase shows ads.

### Which is updated more often, Butterfly Subscription Tracker or ProofCase?

Butterfly Subscription Tracker ships an update monthly, and ProofCase daily. Most recently, Butterfly Subscription Tracker was updated on October 25, 2026 and ProofCase on October 23, 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.*