# SigmaPlayer2 vs Vulpe

The clearest difference is ads: SigmaPlayer2 at none against Vulpe's shown. Vulpe's advantage is update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. SigmaPlayer2 sells 12 one-off in-app purchases and Vulpe sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

SigmaPlayer2 ships an update every 2 months, Vulpe every 2 weeks. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SigmaPlayer2 | Vulpe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (4 ratings)](https://appshunter.io/ios/app/vulpe-study-with-a-plan/id6443739008/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 95.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 19 MB | 188 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BUN-EIDO PUBLISHING CO.,LTD.](https://appshunter.io/developer/1082594050) | [UniLink Inc.](https://appshunter.io/developer/1100530980) |

## What reviewers say

### SigmaPlayer2

[App page](https://appshunter.io/ios/app/sigmaplayer2/id1449804072)

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SWITCH Stage4 | $0.99 | one-time |
| SWITCH Stage5 | $0.99 | one-time |
| 単語帳カスタム再生機能 | $3.99 | one-time |
| ユニコンコミュニケーション2 CD | $4.99 | one-time |
| ユニコンコミュニケーション1 CD | $4.99 | one-time |
| グローブコミュニケーション2 CD | $4.99 | one-time |
| グローブコミュニケーション1 CD | $4.99 | one-time |
| グローブコミュニケーション3 CD | $4.99 | one-time |
| ユニコンコミュニケーション3 CD | $4.99 | one-time |
| Grove English Communication Ⅰ | $4.99 | one-time |
| Grove English Communication II | $4.99 | one-time |
| グローブ英語コミュニケーションⅢ | $4.99 | one-time |


### Vulpe

[App page](https://appshunter.io/ios/app/vulpe-study-with-a-plan/id6443739008)

This app helps you manage your reading goals by breaking down large books into daily page targets. It visualizes your progress, alerting you if you're ahead or behind schedule. Log your daily study sessions to stay on track and achieve your academic objectives.

**Highlights:** Set book completion dates, Calculate daily page goals, Log daily study progress, Visualize progress ahead/behind schedule, Receive progress notifications, Archive completed goals

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vulpe Premium Monthly | $3.99 | per month |
| Vulpe Premium Annual | $12.99 | per year |
| Vulpe Premium Yearly | $39.99 | per year |
| Vulpe Premium Outright | $29.99 | one-time |


## Frequently asked questions

### Is SigmaPlayer2 free?

SigmaPlayer2 is free to download, with in-app purchases available.

### Is Vulpe free?

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

### Do SigmaPlayer2 or Vulpe have ads?

Vulpe shows ads; SigmaPlayer2 does not.

### Which is updated more often, SigmaPlayer2 or Vulpe?

SigmaPlayer2 ships an update every 2 months, and Vulpe every 2 weeks. Most recently, SigmaPlayer2 was updated on October 1, 2026 and Vulpe on October 16, 2026.

---

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