# Parallax vs Sheaf

The clearest difference is review sentiment: Sheaf at 100% against Parallax's 55%. Sheaf also leads on rating (4.7 vs 3.6) and in-app purchases (none vs 3). Parallax's advantage is ratings volume (97 vs 3) and iOS requirement (15.1 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Parallax sells 3 in-app purchases, starting at $2.99 per month. Sheaf asks for nothing beyond the download.

Sheaf holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Parallax has 97 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 55% of Parallax's written reviews are positive against 100% of Sheaf's.

Parallax ships an update every 2 weeks, Sheaf fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | Parallax | Sheaf |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (97 ratings)](https://appshunter.io/ios/app/parallax-plural-space/id6762520179/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/sheaf-plural-system-tracker/id6766770364/reviews)** |
| Number of ratings | **97** | 3 |
| Positive reviews | 55.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 47 MB | 24 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Aziz Naji Ahmed Al Bahal](https://appshunter.io/developer/1894510767) | [Lupine Systems](https://appshunter.io/developer/1896323717) |

## What reviewers say

### Parallax

[App page](https://appshunter.io/ios/app/parallax-plural-space/id6762520179)

This app helps plural individuals manage their system. Create detailed profiles for each member, track who is currently fronting, and log important notes. It offers a privacy-first approach, keeping your data secure and accessible only to you.

**Highlights:** Member profiles with custom avatars and pronouns, Fronting tracking with history, Import system data from SimplyPlural, Push notifications for fronting changes, Privacy-first data storage

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Parallax Plus | $2.99 | per month |
| Parallax Plus | $4.99 | per month |
| Parallax Plus | $6.99 | per month |


### Sheaf

[App page](https://appshunter.io/ios/app/sheaf-plural-system-tracker/id6766770364)

This app helps plural systems track members, manage switches, and keep journals. It offers cross-platform support and prioritizes user privacy with an open-source, self-hostable option.

**Highlights:** Track system members and front changes, Write member and system journals, Manage member groups, Send front change notifications, Cross-platform support (mobile, web, wearable), Open-source and self-hostable

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Parallax free?

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

### Is Sheaf free?

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

### Which has better reviews, Parallax or Sheaf?

Sheaf is rated higher. Parallax averages 3.6 out of 5 from 97 ratings, while Sheaf averages 4.7 from 3 ratings.

### Do Parallax or Sheaf have ads?

Neither Parallax nor Sheaf shows ads.

### Which is updated more often, Parallax or Sheaf?

Parallax ships an update every 2 weeks, and Sheaf fortnightly. Most recently, Parallax was updated on October 25, 2026 and Sheaf on October 25, 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.*