# ProofBox Vault vs Precursor

The clearest difference is update cadence: Precursor at every 6 days against ProofBox Vault's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ProofBox Vault sells 1 one-off in-app purchase and Precursor sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ProofBox Vault ships an update every 4 months, Precursor every 6 days. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ProofBox Vault | Precursor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/precursor-hourly-screen-time/id6791403654/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 2 MB | 17 MB |
| Requires iOS | **16.2** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [瑞华 张](https://appshunter.io/developer/1608130007) | [Precursor Labs](https://appshunter.io/developer/6791403656) |

## What reviewers say

### ProofBox Vault

[App page](https://appshunter.io/ios/app/proofbox-vault/id6763721179)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProofBox Pro | $6.99 | one-time |


### Precursor

[App page](https://appshunter.io/ios/app/precursor-hourly-screen-time/id6791403654)

This app offers a unique approach to screen time management by setting hourly limits for app usage. It aims to break the cycle of daily limit exhaustion and impulsive overrides by providing a sustainable, guilt-free solution that resets limits every hour.

**Highlights:** Set hourly app limits, Automatic hourly limit resets, Customizable limits by day, Friction to prevent impulsive overrides, Private by design, on-device processing, Optional Precursor+ upgrade

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $49.99 | per year |
| Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is ProofBox Vault free?

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

### Is Precursor free?

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

### Do ProofBox Vault or Precursor have ads?

Neither ProofBox Vault nor Precursor shows ads.

### Which is updated more often, ProofBox Vault or Precursor?

ProofBox Vault ships an update every 4 months, and Precursor every 6 days. Most recently, ProofBox Vault was updated on October 10, 2026 and Precursor on October 13, 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.*